UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION

                              WASHINGTON, DC 20549

                                   FORM 10-Q/A


(Mark One)
|X|      QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES
         EXCHANGE ACT OF 1934

For the quarterly period ended        June 30, 2005       
                               ---------------------------



                         Commission file number 0-11783
                                                -------



                                          ACNB CORPORATION  
-------------------------------------------------------------------------------------------------
             (Exact name of registrant as specified in its charter)

                                                                              
                         PENNSYLVANIA                                            23-2233457  
--------------------------------------------------------------              ---------------------
                 (State or other jurisdiction of                              (I.R.S. Employer
                  incorporation or organization)                             Identification No.)

        16 LINCOLN SQUARE, GETTYSBURG, PENNSYLVANIA                              17325-3129  
--------------------------------------------------------------                  ------------ 
            (Address of principal executive offices)                             (Zip Code)

Registrant's telephone number, including area code:  (717) 334-3161
                                                     --------------



                     COMMON STOCK, PAR VALUE $2.50 PER SHARE
--------------------------------------------------------------------------------
                                (Title of class)

Indicate by check mark whether the Registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the preceding 12 months (or for such shorter period that the Registrant was
required to file such reports), and (2) has been subject to such filing
requirements for the past 90 days. Yes |X| No |_|

Indicate by check mark whether the Registrant is an accelerated filer (as
defined in Exchange Act Rule 12b-2). Yes |X| No |_|

The aggregate market value of the voting stock held by nonaffiliates of the
Registrant at June 30, 2005 was approximately $123,921,000.

The number of shares of Registrant's Common Stock outstanding on July 31, 2005
was 5,436,101.




                                     PART I

ACNB CORPORATION
ITEM I FINANCIAL INFORMATION
CONSOLIDATED STATEMENTS OF CONDITION




                                                                       UNAUDITED           UNAUDITED        DECEMBER 31,
                                                                     JUNE 30, 2005       JUNE 30, 2004          2004
---------------------------------------------------------------------------------------------------------------------------
DOLLARS IN THOUSANDS, EXCEPT PER SHARE DATA

                                                                                                          
ASSETS

   Cash and due from banks                                              $ 17,676           $ 25,734           $ 21,757
   Interest-bearing deposits in banks                                        892              1,117                938
                                                                        --------           --------           --------

       Cash and Cash Equivalents                                          18,568             26,851             22,695

   Securities available for sale                                         348,399            366,296            381,383
   Securities held to maturity, fair value $21,852; $35,455; $25,089      21,534             35,100             24,560
   Loans held for sale                                                       977                302                511
   Loans, net of allowance for loan losses $4,086; $4,096; $3,938        460,210            418,072            436,631
   Premises and equipment                                                 14,652              7,786             11,992
   Restricted investment in bank stocks                                    8,464              9,002             10,271
   Investment in bank owned life insurance                                20,735             18,836             19,198
   Investments in low income housing partnerships                          5,940              4,953              6,153
   Intangible asset                                                        3,068                  -                  -
   Goodwill                                                                2,484                  -                  -
   Other assets                                                           11,679             11,580             10,794
                                                                        --------           --------           --------

       TOTAL ASSETS                                                     $916,710           $898,778           $924,188
                                                                        ========           ========           ========

LIABILITIES AND STOCKHOLDERS' EQUITY

LIABILITIES

   Deposits:
      Non-interest bearing                                              $ 80,541           $ 73,044           $ 74,667
      Interest bearing                                                   595,477            593,319            572,205
                                                                        --------           --------           --------

       Total Deposits                                                    676,018            666,363            646,872

   Short-term borrowings                                                  32,731             46,326             64,966
   Long-term borrowings                                                  125,900            112,000            132,000
   Other liabilities                                                       7,796              4,545              5,829
                                                                        --------           --------           --------

       TOTAL LIABILITIES                                                 842,445            829,234            849,667
                                                                        --------           --------           --------

STOCKHOLDERS' EQUITY

   Common stock, $2.50 par value; 20,000,000 shares authorized;          
      5,436,101 shares issued and outstanding                             13,590             13,590             13,590
   Retained earnings                                                      64,655             60,367             63,127
   Accumulated other comprehensive loss                                   (3,980)            (4,413)            (2,196)
                                                                        --------           --------           --------

       TOTAL STOCKHOLDERS' EQUITY                                         74,265             69,544             74,521
                                                                        --------           --------           --------

       TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY                       $916,710           $898,778           $924,188
                                                                        ========           ========           ========



THE ACCOMPANYING NOTES ARE AN INTEGRAL PART OF THE CONSOLIDATED FINANCIAL
STATEMENTS.
--------------------------------------------------------------------------------
                                        2




ACNB CORPORATION
CONSOLIDATED STATEMENTS OF INCOME



                                                                 UNAUDITED                              UNAUDITED
                                                        THREE MONTHS ENDED JUNE 30,             SIX MONTHS ENDED JUNE 30,
                                                        ---------------------------             -------------------------
                                                          2005               2004                 2005             2004
                                                        --------           --------             --------         --------
DOLLARS IN THOUSANDS, EXCEPT PER SHARE DATA

                                                                                                           
INTEREST INCOME
   Loans, including fees                                 $ 6,621            $ 5,882            $ 12,927            $11,769
   Securities:
      Taxable                                              3,390              3,042               6,875              5,763
      Tax-exempt                                             229                229                 458                459
      Dividends                                               94                 21                 153                 62
   Other                                                      23                  8                  40                 67
                                                         -------            -------            --------            -------

       TOTAL INTEREST INCOME                              10,357              9,182              20,453             18,120
                                                         -------            -------            --------            -------

INTEREST EXPENSE
   Deposits                                                2,738              2,367               5,128              4,753
   Short-term borrowings                                     184                175                 537                316
   Long-term debt                                          1,079                543               2,082              1,085
                                                         -------            -------            --------            -------

       TOTAL INTEREST EXPENSE                              4,001              3,085               7,747              6,154
                                                         -------            -------            --------            -------

       NET INTEREST INCOME                                 6,356              6,097              12,706             11,966

PROVISION FOR LOAN LOSSES                                     90                 75                 180                150
                                                         -------            -------            --------            -------

       NET INTEREST INCOME AFTER PROVISION FOR
         LOAN LOSSES                                       6,266              6,022              12,526             11,816
                                                         -------            -------            --------            -------

OTHER INCOME
   Service charges on deposit accounts                       439                447                 834                882
   Income from fiduciary activities                          205                192                 361                361
   Earnings on investment in bank owned life
      insurance                                              195                198                 361                297
   Gains (losses) on sales of securities                    (272)               (46)               (272)               771
   Service charges on ATM and debit card
      transactions                                           184                147                 348                275
   Commissions from insurance sales                        1,001                  -               2,039                  -
   Other                                                     259                195                 633                503
                                                         -------            -------            --------            -------

       TOTAL OTHER INCOME                                  2,011              1,133               4,304              3,089
                                                         -------            -------            --------            -------

OTHER EXPENSES
   Salaries and employee benefits                          3,294              2,575               6,524              5,202
   Net occupancy expense                                     342                250                 664                520
   Equipment expense                                         554                553               1,126              1,080
   Other tax expense                                         241                177                 516                496
   Professional services                                     235                113                 506                237
   Supplies and postage                                      165                162                 349                311
   Other operating                                         1,392                852               2,622              1,672
                                                         -------            -------            --------            -------

       TOTAL OTHER EXPENSES                                6,223              4,682              12,307              9,518
                                                         -------            -------            --------            -------

       INCOME BEFORE INCOME TAXES                          2,054              2,473               4,523              5,387

PROVISION FOR INCOME TAXES                                   325                655                 712              1,448
                                                         -------            -------            --------            -------

       NET INCOME                                        $ 1,729            $ 1,818            $  3,811            $ 3,939
                                                         =======            =======            ========            =======
PER SHARE DATA
   Basic earnings                                        $  0.32            $  0.33            $  0.70             $  0.72
                                                         =======            =======            ========            =======

   Cash dividends declared                               $  0.21            $  0.21            $  0.42             $  0.42
                                                         =======            =======            ========            =======





THE ACCOMPANYING NOTES ARE AN INTEGRAL PART OF THE CONSOLIDATED FINANCIAL
STATEMENTS.
--------------------------------------------------------------------------------
                                        3




ACNB CORPORATION
CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY
SIX MONTHS ENDED JUNE 30, 2005 AND 2004




                                                                                                  ACCUMULATED       
                                                                                                     OTHER           TOTAL       
                                                                       COMMON       RETAINED     COMPREHENSIVE    STOCKHOLDERS'
                                                                       STOCK        EARNINGS     INCOME (LOSS)      EQUITY
                                                                    ------------  ------------  ---------------  --------------
DOLLARS IN THOUSANDS
                   
                                                                                                            
BALANCE - DECEMBER 31, 2003                                           $13,590       $58,711         $   442         $72,743
                                                                                                                  ------------
Comprehensive income (loss):
    Net income                                                              -         3,939               -           3,939
    Change in net unrealized gains on securities available for
       sale, net of reclassification adjustment and taxes                   -             -          (4,855)         (4,855)
                                                                                                                  ------------

    TOTAL COMPREHENSIVE LOSS                                                                                           (916)
                                                                                                                  ------------

    Cash dividends declared                                                 -        (2,283)              -          (2,283)
                                                                    ------------  -------------   ------------    ------------

BALANCE - JUNE 30, 2004                                               $13,590       $60,367         $(4,413)        $69,544
                                                                    ============  =============   ============    ============

BALANCE - DECEMBER 31, 2004                                           $13,590       $63,127         $(2,196)        $74,521
Comprehensive income:
    Net income                                                              -         3,811               -           3,811
    Change in net unrealized gains on securities available for
       sale, net of reclassification adjustment and taxes                   -             -          (1,784)         (1,784)
                                                                                                                  ------------

    TOTAL COMPREHENSIVE INCOME                                                                                        2,027
                                                                                                                  ------------

    Cash dividends declared                                                 -        (2,283)              -          (2,283)
                                                                    ------------  -------------   ------------    ------------

BALANCE - JUNE 30, 2005                                               $13,590       $64,655         ($3,980)        $74,265
                                                                    ============  =============   ============    ============





THE ACCOMPANYING NOTES ARE AN INTEGRAL PART OF THE CONSOLIDATED FINANCIAL
STATEMENTS.
--------------------------------------------------------------------------------
                                        4





ACNB CORPORATION
CONSOLIDATED STATEMENTS OF CASH FLOWS


                                                                                                       UNAUDITED
                                                                                               SIX MONTHS ENDED JUNE 30,
                                                                                             ------------------------------
                                                                                                 2005             2004
IN THOUSANDS
CASH FLOWS FROM OPERATING ACTIVITIES
                                                                                                                
   Interest and dividends received                                                                $22,194         $18,697
   Fees and commissions received                                                                    4,191           3,405
   Interest paid                                                                                   (7,948)         (6,247)
   Cash paid to suppliers and employees                                                           (11,094)        (11,270)
   Income taxes paid                                                                                 (270)         (1,429)
   Loans originated for sale                                                                       (9,599)         (3,604)
   Proceeds on mortgage loans sold                                                                  9,135           3,388
                                                                                             -------------   --------------

         NET CASH PROVIDED BY OPERATING ACTIVITIES                                                  6,609           2,940
                                                                                             -------------   --------------

CASH FLOWS FROM INVESTING ACTIVITIES
   Proceeds from maturities of investment securities held-to-maturity                               2,979           7,084
   Proceeds from maturities of investment securities available-for-sale                            18,039               -
   Proceeds from sales of securities available-for-sale                                            26,196         185,258
   Purchase of investment securities available-for-sale                                           (14,862)       (212,386)
   Purchase of restricted investment in bank stocks                                                (2,849)         (1,455)
   Proceeds from sales of restricted investments in bank stocks                                     4,656               -
   Purchase of bank owned life insurance                                                           (1,200)         (4,400)
   Net increase in loans                                                                          (23,759)         (7,138)
   Investment in Russell Insurance Group, Inc.                                                     (5,552)              -
   Investments in low income housing partnerships                                                     (78)         (1,683)
   Capital expenditures                                                                            (3,134)         (1,163)
   Proceeds from sales of property and foreclosed real estate                                         300              37
                                                                                             -------------   --------------

         NET CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES                                          736         (35,846)
                                                                                             -------------   --------------

CASH FLOWS FROM FINANCING ACTIVITIES
   Net increase (decrease) in demand deposits, interest-bearing deposits, and savings             (22,218)         16,646
      accounts
   Net increase in time certificates of deposit                                                    51,964          10,330
   Net decrease in short-term borrowings                                                          (32,235)        (23,350)
   Dividends paid                                                                                  (2,283)         (2,283)
   Proceeds from long-term borrowings                                                               6,000          25,000
   Repayments on long-term borrowings                                                             (12,700)              -
                                                                                             -------------   --------------

         NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES                                      (11,472)         26,343
                                                                                             -------------   --------------

         NET DECREASE IN CASH AND CASH EQUIVALENTS                                                 (4,127)         (6,563)

CASH AND CASH EQUIVALENTS - BEGINNING                                                              22,695          33,414
                                                                                             -------------   --------------

CASH AND CASH EQUIVALENTS - ENDING                                                                $18,568         $26,851
                                                                                             =============   ==============
RECONCILIATION OF NET INCOME TO NET CASH PROVIDED BY OPERATING ACTIVITIES
   Net income                                                                                     $ 3,811        $  3,939
   Adjustments to reconcile net income to net cash provided by operating activities:
      Gains on sales of loans, property and foreclosed real estate                                    (87)              -
      Earnings on investment in bank owned life insurance                                            (385)           (297)
      (Gains) losses on sales of securities                                                           272            (771)
      Depreciation and amortization                                                                   649             430
      Provision for loan losses                                                                       180             150
      Net amortization of investment securities premiums                                              641           1,622
      (Increase) decrease in interest receivable                                                    1,100            (642)
      Decrease in interest payable                                                                   (199)            (93)
      (Increase) in mortgage loans held for sale                                                     (466)           (216)
      (Increase) in other assets                                                                   (1,073)         (1,397)
      Increase in other liabilities                                                                 2,166             215
                                                                                             -------------   --------------

         NET CASH PROVIDED BY OPERATING ACTIVITIES                                                $ 6,609        $  2,940
                                                                                             =============   ==============



THE ACCOMPANYING NOTES ARE AN INTEGRAL PART OF THE CONSOLIDATED FINANCIAL
STATEMENTS.
--------------------------------------------------------------------------------
                                        5





ACNB CORPORATION
ITEM 1 - NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


1.       BASIS OF PRESENTATION

         In the opinion of management, the accompanying unaudited consolidated
         financial statements contain all adjustments necessary to present
         fairly ACNB Corporation's financial position as of June 30, 2005 and
         2004, and the results of its operations, changes in stockholders'
         equity and cash flows for the three and six months ended June 30, 2005
         and 2004. All such adjustments are of a normal recurring nature.

         The accounting policies followed by the Corporation are set forth in
         Note A to the Corporation's financial statements in the 2004 ACNB
         Corporation Annual Report on Form 10-K, filed with the SEC on March 15,
         2005. The results of operations for the six month period ended June 30,
         2005 are not necessarily indicative of the results to be expected for
         the full year. For comparative purposes, the June 30, 2004 balances
         have been reclassified to conform with the 2005 presentation. Such
         reclassifications had no impact on net income.

2.       EARNINGS PER SHARE

         Earnings per share are based on the weighted average number of shares
         of stock outstanding during each period. Weighted average shares
         outstanding for the three month and six month periods ended June 30,
         2005 and 2004 were 5,436,101. The Corporation does not have dilutive
         securities outstanding.

3.       COMPONENTS OF NET PERIODIC BENEFIT COST

         The components of net periodic benefit costs for the three month and
         six month periods ended June 30 were as follows:


                                                       THREE MONTHS ENDED JUNE 30,           SIX MONTHS ENDED JUNE 30,
                                                   -----------------------------------   -----------------------------------
                                                        2005               2004               2005                2004
                                                   ---------------    ----------------   ----------------    ---------------
                                                                                                             
          Service cost                                        $134               $109               $268                $218
          Interest cost                                        206                196                412                 392
          Expected return on plan assets                      (219)              (185)              (438)               (370)
          Recognized net actuarial loss                         38                 19                 76                  38
          Other, net                                            13                 15                 26                  30
                                                   ---------------    ----------------   ----------------    ---------------

                 NET PERIODIC BENEFIT COST                    $172               $154               $344                $308
                                                   ===============    ================   ================    ===============


         The Corporation previously disclosed in its financial statements for
         the year ended December 31, 2004 that it expected to contribute
         $1,250,000 to its pension plan in 2005. As of June 30, 2005, $1,250,000
         of contributions have been made.

4.       GUARANTEES

         The Corporation does not issue any guarantees that would require
         liability recognition or disclosure, other than its standby letters of
         credit. Standby letters of credit are written conditional commitments
         issued by the Corporation to guarantee the performance of a customer to
         a third party. Generally, all letters of credit, when issued have
         expiration dates within one year. The credit risk involved in issuing
         letters of credit is essentially the same as those that are involved in
         extending loan facilities to customers. The Corporation, generally
         holds collateral and/or personal guarantees supporting these
         commitments. The Corporation had $5,177,000 in standby letters of
         credit, as of June 30, 2005. Management believes that the proceeds
         obtained through a liquidation of collateral and the enforcement of
         guarantees should be sufficient to cover the potential amount of future
         payment required under the corresponding guarantees. The current amount
         of the liability, as of June 30, 2005 for guarantees under standby
         letters of credit issued is not material.

                                       6



ACNB CORPORATION
ITEM 1 - NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)


5.       COMPREHENSIVE INCOME

         The Corporation's other comprehensive income items are unrealized gains
         (losses) on securities available for sale and unfunded pension
         liability. There was no change in the unfunded pension liability during
         the three month and six month periods ended June 30, 2005 and 2004. The
         components of other comprehensive income (loss) for the three month and
         six month periods ended June 30 were as follows:



                                                       THREE MONTHS ENDED JUNE 30,           SIX MONTHS ENDED JUNE 30,
                                                   -----------------------------------   -----------------------------------
                                                        2005               2004               2005                2004
                                                   ---------------    ----------------   ----------------    ---------------
                                                                                                             
          Unrealized holding gains (losses) on                                                                              
               available for sale securities
               arising during the period                    $4,166            $(7,126)           $(3,017)            $(6,585)
          Reclassification of (gains) losses                                                                                
               realized in net income                          272                 46                272                (771)
                                                   ---------------    ----------------   ----------------    ---------------

                 NET UNREALIZED GAINS (LOSSES)               4,438             (7,080)            (2,745)             (7,356)
                     TAX EFFECT

          Tax effect                                        (1,554)             2,404                961               2,501
                                                   ---------------    ----------------   ----------------    ---------------

                 OTHER COMPREHENSIVE INCOME                 
                     (LOSS)                                 $2,884            $(4,676)           $(1,784)            $(4,855)
                                                   ===============    ================   ================    ===============


6.       ACQUISITION OF RUSSELL INSURANCE GROUP, INC.

         On November 19, 2004, the Corporation, through its acquisition
         subsidiary, entered into a definitive agreement to purchase Russell
         Insurance Group Inc. Under the terms of the definitive agreement, the
         Corporation agreed to pay $4,750,000 in cash to acquire Russell
         Insurance Group Inc. Additional consideration of up to $2,882,000 is
         subject to performance criteria for payment over the next three years.
         In addition, the Corporation through its acquisition subsidiary has
         entered into a three-year employment contract with Frank Russell, Jr.,
         the President of Russell Insurance Group Inc. On January 5, 2005, the
         acquisition was completed. The purchase price of $5,663,000, which
         includes closing costs of $220,000, was allocated as follows (in
         thousands):

                            Cash                                   $   628
                            Intangible asset                         3,230
                            Goodwill                                 2,334
                            Other assets                             1,049
                            Other liabilities                       (1,578)
                                                           ----------------
                                                                    $5,663
                                                           ================

         The intangible asset, representing the customer base, will be amortized
         over 10 years. Goodwill will not be amortized but will be analyzed
         annually for impairment. Amortization on goodwill and the intangible
         asset will be deductible for tax purposes.

                                       7




ACNB CORPORATION
ITEM 2 - MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
         RESULTS OF OPERATIONS

INTRODUCTION AND FORWARD-LOOKING STATEMENTS

INTRODUCTION

The following is management's discussion and analysis of the significant changes
in the results of operations, capital resources and liquidity presented in its
accompanying consolidated financial statements for ACNB Corporation (the
Corporation or ACNB), a financial holding company. The consolidated financial
statements include its wholly-owned subsidiaries, Adams County National Bank,
Russell Insurance Group Inc. and Pennbanks Insurance Company. Please read this
discussion in conjunction with the consolidated financial statements and
disclosures included herein. Current performance does not guarantee or assure
and is not necessarily indicative of similar performance in the future.


FORWARD-LOOKING STATEMENTS

In addition to historical information, this Form 10-Q contains forward-looking
statements. Examples of forward-looking statements include, but are not limited
to, (a) projections or statements regarding future earnings, expenses, net
interest income, other income, earnings or loss per share, asset mix and
quality, growth prospects, capital structure and other financial terms, (b)
statements of plans and objectives of management or the board of directors, and
(c) statements of assumptions, such as economic conditions in the Corporation's
market areas. Such forward-looking statements can be identified by the use of
forward-looking terminology such as "believes," "expects," "may," "intends,"
"will," "should," "anticipates," or the negative of any of the foregoing or
other variations thereon or comparable terminology, or by discussion of
strategy. Forward-looking statements are subject to certain risks and
uncertainties. Actual results may differ materially from those projected in the
forward-looking statements. We caution readers not to place undue reliance on
these forward-looking statements. They only reflect management's analysis, as of
this date. The Corporation does not revise or update these forward-looking
statements to reflect events or changed circumstances. Please carefully review
the risk factors described in other documents the Corporation files from
time-to-time with the Securities and Exchange Commission, including the
Quarterly Reports on Form 10-Q, filed by the Corporation and any Current Reports
on Form 8-K filed by the Corporation.


CRITICAL ACCOUNTING POLICIES

The accounting policies that the Corporation's management deems to be most
important to the portrayal of its financial condition and results of operations,
and that require management's most difficult, subjective or complex judgment,
often result in the need to make estimates about the effect of such matters
which are inherently uncertain. The following policies are deemed to be critical
accounting policies by management:

     The allowance for loan losses represents management's estimate of probable
     losses inherent in our loan portfolio. Management makes numerous
     assumptions, estimates and adjustments in determining an adequate
     allowance. The Corporation assesses the level of potential loss associated
     with its loan portfolio and provides for that exposure through an Allowance
     for Loan Losses. The allowance is established through a provision for loan
     losses charged to earnings. The allowance is an estimate of the losses
     inherent in the loan portfolio as of the end of each reporting period. The
     Corporation assesses the adequacy of its allowance on a quarterly basis.

                                       8




     The evaluation of securities for other than temporary impairment requires a
     significant amount of judgment. In estimating other than temporary
     impairment losses, management considers various factors, including length
     of time the fair value has been below cost, the financial condition of the
     issuer and the intent and ability of the corporation to hold the securities
     until recovery. Declines in fair value that are determined to be other than
     temporary are charged against earnings.

     The evaluation of goodwill and intangibles for impairment requires a
     significant amount of judgment, and includes consideration of various
     factors, including estimates of future income from the customer base.
     Impairment would be recognized through a charge to earnings.

RESULTS OF OPERATIONS

Net income totaled $3,811,000 during the six months ended June 30, 2005.
Earnings per share totaled $0.70 for the same period. Net income during the six
months ended June 30, 2004 totaled $3,939,000 and earnings per share totaled
$0.72. The decrease in net income and earnings per share was primarily driven by
lack of securities gains in 2005 as opposed to 2004.

Net interest income totaled $12,706,000 during the six month period ended June
30, 2005 compared to $11,966,000 for the same period in 2004. The increase in
net interest income during 2005 was primarily related to an increase in average
earning assets.

The net interest spread during the first six months of 2005 was 2.68% compared
to 2.69% during the same period in 2004. The yield on interest earning assets
increased by 0.31% and cost of interest bearing liabilities increased by 0.32%
during 2005. The net interest margin was 2.91% for the first half of 2005
compared to 2.92% for the same period in 2004.

Average earning assets were $869,040,000 during 2005, an increase of $51,289,000
over the 2004 average of $817,751,000. Average interest bearing liabilities were
$767,728,000 in 2005, up from $713,212,000 in 2004.

PROVISION FOR LOAN LOSSES

The provision for loan losses charged against earnings was $180,000 for the
first six months of 2005 compared to $150,000 for the same period in 2004. The
provision for loan losses totaled $90,000 for the second quarter of 2005 as
compared to $75,000 for the second quarter of 2004. The increase was primarily a
result of loan growth. ACNB adjusts the provision for loan losses periodically
as necessary to maintain the allowance at a level deemed to meet the risk
characteristics of the loan portfolio.

OTHER INCOME

During the first six months of 2005, total other income was $4,304,000, a
$1,215,000 increase from 2004. The increase was primarily the result of
commissions from insurance sales totaling $2,039,000 recognized by the
Corporation's new subsidiary, Russell Insurance Group, Inc. (see footnote 6),
partially offset by a decrease in gains on sales of securities of $1,043,000.

Total other income during the second quarter of 2005 was $2,011,000 as compared
to $1,133,000 during the second quarter of 2004. The increase was primarily the
result of commissions from insurance sales totaling $1,001,000.

Income from fiduciary activities, which includes both institutional and personal
trust management services and brokerage service fees, totaled $361,000 for the
first half of 2005, as compared to $361,000 during 2004. During the second
quarter of 2005, income totaled $205,000 as compared to $192,000 during the
second quarter of 2004. The change year over year is not significant.

Other income was $633,000 for the six months ended June 30, 2005, as compared to
income of $503,000 during the same period in 2004. The major factor in the
increase was the sale of two bank properties for a gain of $220,000, partially
offset by a loss on sale of foreclosed real estate of $88,000.

                                       9




OTHER EXPENSE

The largest component of other expense is salaries and employee benefits, which
increased $1,322,000, or 25%, to $6,524,000 during the first six months of 2005
as compared to the same period a year ago. Salaries and employee benefits
totaled $3,294,000 during the second quarter of 2005 as compared to $2,575,000
during the second quarter of 2004. The increase in salary and employee benefits
was the result of:

         o    Salaries and benefits included expenses related to Russell 
              Insurance Group, Inc. totaling  $1,011,000 and $538,000 during
              the first half of 2005 and the second quarter of 2005, 
              respectively.

         o    Normal merit increases to employees;

         o    Increases in administrative personnel expense as the bank's
              strategic direction continues to focus on greater growth; and,

         o    Increases in employee benefit costs, particularly health and
              welfare benefit plans, consistent with the rising health care cost
              trend noted nationwide and increased net periodic pension costs
              due to the underperformance of investments in the pension plan.

Net occupancy expense totaled $664,000 and equipment expense totaled $1,126,000
during the six month period ended June 30, 2005 as compared to $520,000 and
$1,080,000 during the same period in 2004, respectively. During the second
quarter of 2005, net occupancy expense totaled $342,000 and equipment expense
totaled $554,000 as compared to $250,000 and $553,000, respectively, during the
second quarter of 2004. The increases were the result of additional operational
expenses and maintenance associated with the overall bank growth and more
sophisticated delivery channels offered to the bank's customer base as well as
additional expenses relating to the New Oxford branch opened in early 2005.

Professional services expense totaled $506,000 during the first half of 2005, as
compared to $237,000 for the same period in 2004. During the second quarter of
2005, professional services expense totaled $235,000 as compared to $113,000
during the second quarter of 2004. The increase was primarily a result of
internal audit services and expenses relating to Sarbanes-Oxley ss. 404
compliance.

Other operating expenses totaled $2,622,000 during the six month period ended
June 30, 2005, compared to $1,672,000 during the same period in 2004. During the
second quarter of 2005, other operating expenses totaled $1,392,000 as compared
to $852,000 during the second quarter of 2004. Significant expense components in
this category include marketing and advertising and expenses incurred by Russell
Insurance Group, Inc., which totaled $455,000 and $215,000 during the first half
and second quarter of 2005, respectively.

INCOME TAX EXPENSE

During the six month period ended June 30, 2005, ACNB recognized income taxes of
$712,000, or 15.7% of pretax income as compared to $1,448,000, or 26.9% of
pre-tax income during the same period in 2004. The effective tax rate during the
second quarter of 2005 was 15.8% as compared to 26.5% during the second quarter
of 2004. The variances from the federal statutory rate of 35% are generally due
to tax-exempt income and investments in low-income housing partnerships (which
qualify for federal tax credits).

The effective tax rate during the periods ended June 30, 2005 and 2004 included
historical and low income housing tax credits of $432,000 and $142,000,
respectively, associated with low income housing projects.

                                       10




FINANCIAL CONDITION

Average earning assets during the six months ended June 30, 2005 increased to
$869,040,000 from $817,751,000 during the same period in 2004. Average funding
sources, or interest bearing liabilities, increased in 2005 to $767,728,000 from
$713,212,000 in 2004.

INVESTMENT SECURITIES

ACNB uses investment securities to generate interest and dividend income, to
manage interest rate risk, and to provide liquidity. Much of the investment
activity focused on U.S. Government agencies, tax-free municipal, and corporate
securities. These securities provide the appropriate characteristics with
respect to yield and maturity relative to the management of the overall balance
sheet.

At June 30, 2005, the securities balance included a net unrealized loss on
available for sale securities of $3,588,000, net of taxes, versus a net
unrealized loss of $2,196,000, net of taxes at December 31, 2004. The increase
in interest rates during 2004 and 2005 led to the depreciation in the fair value
of securities during 2005. Management has not recognized other than temporary
impairment on any of the securities.

LOANS

Loans outstanding increased $42,803,000 from June 30, 2004 to June 30, 2005 and
$24,193,000 from December 31, 2004 to June 30, 2005. The growth in loans is
consistent with a stable local economy and lending to support existing
customers. The commercial loan growth experienced in 2005 is the result of
actively marketing to local businesses. Additionally, ACNB has been able to
participate with other institutions on larger loans.

Most of the Corporation's activities are with customers located within the south
central Pennsylvania and northern Maryland region of the country. The
Corporation does not have any significant concentrations greater than 10% of
loans to any one industry or customer.

ALLOWANCE FOR LOAN LOSSES

The allowance for loan losses at June 30, 2005 was $4,086,000 or 0.88% of loans,
as compared to $4,096,000 or 0.97% of loans at the end of the second quarter of
2004 and $3,938,000 or 0.89% at December 31, 2004. Loans past due 90 days and
still accruing were $229,000 and non-accrual loans were $7,314,000 as of June
30, 2005. The ratio of non-performing loans plus foreclosed assets to total
assets was 0.82% at June 30, 2005 as compared to 0.66% at June 30, 2004 and
0.91% at December 31, 2004.

Loans past due 90 days and still accruing were $160,000 at December 31, 2004,
while non-accruals were $8,054,000. Nonaccrual and impaired loans include three
commercial loan relationships. Payments on these loans were current as of
December 31, 2004 and June 30, 2005, however, cash flows reported to the Bank by
each of the related companies are not sufficient to service the debt. As a
result, the loans have been classified as impaired. The loans were also
classified as nonaccrual as a result of a banking regulatory requirement to stop
accruing interest on loans for which full payment of principal and interest is
not expected. All three of the loans are collateralized by real estate.

No additional funds are committed to be advanced in connection with impaired
loans.

The bank considers a loan impaired when, based on current information and
events, it is probable that a lender will be unable to collect all amounts due.
We measure impaired loans based on the present value of expected future cash
flows, discounted at the loan's effective interest rate, or as a practical
expedient, at the loan's observable market price or the fair value of the
collateral if the loan is collateral dependent. If the measure of the impaired
loan is less than its recorded investment a lender must recognize an impairment
by creating, or adjusting, a valuation allowance with a corresponding charge to
loan loss expense. The corporation uses the cash basis method to recognize
interest income on loans that are impaired. All of the corporation's impaired
loans were on a non-accrual status for all reported periods.

                                       11



PREMISES AND EQUIPMENT

The increase in premises and equipment from $7,786,000 at June 30, 2004 to
$14,652,000 at June 30, 2005 and $11,992,000 from December 31, 2004 to June 30,
2005 is primarily related to the Corporation's new Operations Center, which is
scheduled to be completed later this year. Additionally, the Corporation
anticipates incurring an additional $1,500,000 related to the Operations Center.

DEPOSITS

ACNB continues to rely on deposit growth as the primary source of funds for
lending activities. Deposits increased $9,655,000 from June 30, 2004 to June 30,
2005 and $29,146,000 from December 31, 2004 to June 30, 2005. Deposits have
grown as the bank has continued to expand its market area. ACNB will continue to
explore new products for its customers, to attract and retain other funds
seeking safe havens. However, ACNB's ability to maintain and add to its deposit
base may experience additional competitive pressures from the stock market
and/or other alternative investment products offered by the insurance industry
and others.

BORROWINGS

Short-term borrowings are comprised primarily of securities sold under
agreements to repurchase, and overnight borrowings at the Federal Home Loan Bank
in Pittsburgh (FHLB). As of June 30, 2005, short-term borrowings were
$32,731,000, as compared to $64,966,000 at December 31, 2004 and $46,326,000 at
June 30, 2004.

Long-term debt consists primarily of advances from the Federal Home Loan Bank to
fund ACNB's growth in its securities portfolio. Long-term debt totaled
$125,900,000 at June 30, 2005, versus $132,000,000 at December 31, 2004. The
decrease during the first half of 2005 is the result of a decision to reduce
borrowings in the current interest rate environment.

CAPITAL

The management of capital in a regulated financial services industry must
properly balance return on equity to stockholders while maintaining sufficient
capital levels and related risk-based capital ratios to satisfy regulatory
requirements. Capital management must also consider growth opportunities that
may exist, and the resulting need for additional capital. ACNB's capital
management strategies have been developed to provide attractive rates of returns
to stockholders, while maintaining its "well-capitalized" position.

The primary source of additional capital to ACNB is earnings retention, which
represents net income less dividends declared. During 2005, ACNB retained
$1,528,000, or 40%, of its net income as compared to $1,656,000 or 42% during
the same period in 2004.

ACNB is subject to various regulatory capital requirements administered by the
federal banking agencies. Failure to meet minimum capital requirements can
initiate certain mandatory and possibly additional discretionary actions by
regulators that, if undertaken, could have a direct material effect on ACNB.
Under capital adequacy guidelines and the regulatory framework for prompt
corrective action, ACNB must meet specific capital guidelines that involve
quantitative measures of their assets, liabilities and certain off-balance sheet
items as calculated under regulatory accounting practices. The capital amounts
and reclassifications are also subject to qualitative judgments by the
regulators about components, risk-weightings, and other factors.

Quantitative measures established by regulation to ensure capital adequacy
requires ACNB to maintain minimum amounts and ratios of total and Tier 1 capital
to average assets. Management believes, as of June 30, 2005, that ACNB's banking
subsidiary met all minimum capital adequacy requirements to which they are
subject and are categorized as "well-capitalized." There are no conditions or
events since June 30, 2005 that management believes have changed the subsidiary
bank's category.

                                       12




RISKED-BASED CAPITAL

ACNB's capital ratios are as follows:



                                                                                          JUNE 30,           DECEMBER 31,
                                                                                            2005                 2004
                                                                                        -------------        ------------
                                                                                                             
          Tier 1 leverage ratio (to average assets)                                          8.21%                8.34%
          Tier 1 risk-based capital ratio (to risk-weighted assets)                         14.37                13.91
          Total risk-based capital ratio                                                    15.15                14.64


LIQUIDITY

Effective liquidity management ensures the cash flow requirements of depositors
and borrowers, as well as the operating cash needs of ACNB are met.

ACNB's funds are available from a variety of sources, including assets that are
readily convertible to such as cash and federal funds sold, maturities and
repayments from the securities portfolio, scheduled repayments of loans
receivable, the core deposit base, and the ability to borrow from the FHLB. At
June 30, 2005, ACNB could borrow approximately $422,712,000 from the FHLB of
which $291,247,000 was available.

Another source of liquidity is securities sold under repurchase agreement to
customers of ACNB's banking subsidiary totaling $20,816,000 and $27,166,000 at
June 30, 2005 and December 31, 2004, respectively.

The liquidity of the parent company also represents an important aspect of
liquidity management. The parent company's cash outflows consist principally of
dividends to stockholders and corporate expenses. The main source of funding for
the parent company is the dividends it receives from its banking subsidiary.
Federal and state banking regulations place certain restrictions on dividends
paid to the parent company from the subsidiary banks. The total amount of
dividends that may be paid from the subsidiary bank to ACNB were $6,897,000 at
June 30, 2005.


ITEM 3 - QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Management monitors and evaluates changes in market conditions on a regular
basis. Based upon the most recent review management has determined that there
have been no material changes in market risks since year end. For further
discussion of year end information, refer to the quarterly report.

                                       13




ITEM 4 - CONTROLS AND PROCEDURES

As of the end of the period covered by this report, the Corporation carried out
an evaluation, under the supervision and with the participation of the
Corporation's management, including the Corporation's Chief Executive Officer
and Chief Financial Officer, of the effectiveness of the design and operation of
the corporation's disclosure controls and procedures pursuant to the Securities
Exchange Act of 1934 (" Exchange Act") Rule 13a-15e. Based upon that evaluation,
the Corporation's Chief Executive Officer along with the Corporation's Chief
Financial Officer concluded that the Corporation's disclosure controls and
procedures are not effective, as a result of a material weakness identified
during the Corporation's assessment of internal control over financial reporting
as of December 31, 2004, in timely alerting them to material information
relating to the Corporation (including its consolidated subsidiaries) required
to be included in the Corporation's internal controls or in other factors which
could significantly affect these controls subsequent to the date the Corporation
carried out its evaluation.

The material weakness is described as follows: ineffective controls over the
application of generally accepted accounting principles to certain significant,
complex, non-routine transactions and the related statement disclosures. The
Corporation is actively searching for experienced financial personnel to enhance
the Corporation's financial reporting capabilities and expects to engage outside
consultants to provide expertise on non-routine matters when they arise.

Disclosure controls and procedures are corporation controls and other procedures
that are designed to ensure that information required to be disclosed by the
Corporation in the reports that it files or submits under the Exchange Act is
recorded, processed, summarized, and reported within the time periods specified
in the SEC's rules and forms.

There was no change in our internal control over financial reporting during our
fiscal quarter ended June 30, 2005 that has materially affected, or is
reasonably likely to materially affect, our internal control over financial
reporting.

                                       14




PART II

ACNB CORPORATION
OTHER INFORMATION

ITEM 1 - LEGAL PROCEEDINGS

Management is not aware of any litigation that would have a material adverse
effect on the consolidated financial position of the Corporation. There are no
proceedings pending other than the ordinary routine litigation incident to the
business of the Corporation and its subsidiaries. In addition, no material
proceedings are pending or are known to be threatened or contemplated against
the Corporation and its subsidiaries by government authorities.

ITEM 2 - UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS - NOTHING
         TO REPORT.

ITEM 3 - DEFAULTS UPON SENIOR SECURITIES - NOTHING TO REPORT.

ITEM 4 - SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

         a.   An annual meeting of shareholders was held at 1:00 p.m. on May 17,
              2005, at the office of Adams County National Bank, 675 Old
              Harrisburg Road, Gettysburg, PA 17325. The 2005 Annual Meeting of 
              Shareholders held on May 17, 2005, was adjourned to June 7, 2005, 
              at 2:30 p.m. and held at the office of Adams County National Bank,
              675 Old Harrisburg Road, Gettysburg, PA 17325, and again 
              adjourned to June 27, 2005, at 1:45 p.m. and held at the
              office of Adams County National Bank, 675 Old Harrisburg Road, 
              Gettysburg, PA 17325, and again adjourned to July 12, 2005, at 
              3:00 p.m. and held at the office of Adams County National Bank, 
              675 Old Harrisburg Road, Gettysburg, PA 17325 to permit further 
              solicitation of proxies with respect to the proposal to amend 
              Article 9th of the Articles of Incorporation to provide for a
              two-tiered supermajority clause regarding fundamental transactions
              and only seven out of eight proposals were acted upon at the May
              17, 2005 annual meeting.

         b.   Eight matters were voted upon and seven matters were acted upon at
              the May 17, 2005 meeting as follows:

                  Proposal to fix the number of Directors of ACNB Corporation at
twelve (12):



                         VOTES CAST               VOTES CAST                    VOTES
                           "FOR"                   "AGAINST"                   ABSTAINED
                 --------------------------      --------------       -------------------------

                                                                          
                         4,136,985                    40,219                    83,447

                  Proposal to fix the number of Class 1 Directors at four (4):

                         VOTES CAST               VOTES CAST                    VOTES
                           "FOR"                   "AGAINST"                   ABSTAINED
                 --------------------------      --------------       -------------------------

                         4,143,956                    35,518                    81,177

                  Proposal to fix the number of Class 2 Directors at four (4):

                         VOTES CAST               VOTES CAST                    VOTES
                           "FOR"                   "AGAINST"                   ABSTAINED
                 --------------------------      --------------       -------------------------

                         4,139,068                    38,806                    82,777


                                       15



                  Proposal to fix the number of Class 3 Directors at four (4):



                         VOTES CAST               VOTES CAST                    VOTES
                           "FOR"                   "AGAINST"                   ABSTAINED
                 --------------------------      --------------       -------------------------

                                                                          
                         4,135,012                    41,308                    84,331


                  Election of one (1) Class 2 Director to serve for a one-year
                  term:



                     DIRECTOR                     TERM EXPIRES         VOTES CAST "FOR"      VOTES "WITHHELD"
                  -------------                   ------------         ----------------      ----------------
                                                                                             
                  Alan J. Stock                        2006                4,190,254               70,397

                  Election of four (4) Class 3 Directors to serve for a
                  three-year term:




                     DIRECTOR                     TERM EXPIRES         VOTES CAST "FOR"      VOTES "WITHHELD"
                  -------------                   ------------         ----------------      ----------------
                                                                                                  
                  Philip P. Asper                      2008                    4,171,424                89,227
                  Frank Elsner, III                    2008                    4,182,363                78,288
                  Daniel W. Potts                      2008                    4,197,005                63,646
                  Thomas A. Ritter                     2008                    4,147,594               113,057


                  Amend Article 9th of the Articles of Incorporation to provide
                  for a two-tiered supermajority clause regarding fundamental
                  transactions. This matter was voted upon, but not acted upon.




                          VOTES CAST                VOTES CAST               VOTES                 BROKER
                             "FOR"                   "AGAINST"            "ABSTAINED"             NON-VOTE
                  -----------------------      ------------------     ------------------    --------------
                                                                                    
                  3,556,222                    122,588                99,885                481,956


                  To ratify the selection of Beard Miller Company LLP as ACNB
                  Corporation's independent auditors for the year ending
                  December 31, 2005.




                          VOTES CAST                VOTES CAST               VOTES    
                             "FOR"                   "AGAINST"            "ABSTAINED"     
                  -----------------------      ------------------     ------------------  
                                                                              
                           4,207,014                       13,895                 39,742


                  The following Directors terms continued after the annual
                  meeting of shareholders held on May 17, 2005:

                  --------------------------------------------- ----------------
                  Director Name                                 Term Expires
                  --------------------------------------------- ----------------
                  --------------------------------------------- ----------------
                  D. Richard Guise                              2007
                  --------------------------------------------- ----------------
                  --------------------------------------------- ----------------
                  Ronald L. Hankey                              2007
                  --------------------------------------------- ----------------
                  --------------------------------------------- ----------------
                  Edgar S. Heberlig                             2007
                  --------------------------------------------- ----------------
                  --------------------------------------------- ----------------
                  Marian B. Schultz                             2007
                  --------------------------------------------- ----------------
                  --------------------------------------------- ----------------
                  Wayne E. Lau                                  2006
                  --------------------------------------------- ----------------
                  --------------------------------------------- ----------------
                  Jennifer L. Weaver                            2006
                  --------------------------------------------- ----------------
                  --------------------------------------------- ----------------
                  Harry L. Wheeler                              2006
                  --------------------------------------------- ----------------

                                       16



                  One matter was voted upon at the June 7, 2005 meeting and no
                  matter was acted upon as follows:

                  Amend Article 9th of the Articles of Incorporation to provide
                  for a two-tiered supermajority clause regarding fundamental
                  transactions.



                          VOTES CAST                VOTES CAST               VOTES                 BROKER
                             "FOR"                   "AGAINST"            "ABSTAINED"             NON-VOTE
                  -----------------------      ------------------     ------------------    --------------
                                                                                    
                           3,871,949                  147,963               129,260                370,384


                  One matter was voted upon at the June 27, 2005 meeting and no
                  matter was acted upon as follows:

                  Amend Article 9th of the Articles of Incorporation to provide
                  for a two-tiered supermajority clause regarding fundamental
                  transactions.




                          VOTES CAST                VOTES CAST               VOTES                 BROKER
                             "FOR"                   "AGAINST"            "ABSTAINED"             NON-VOTE
                  -----------------------      ------------------     ------------------    --------------
                                                                                    
                           4,019,154                  152,631               131,945                353,389



                  One matter was voted upon and acted upon at the July 12, 2005
                  meeting as follows:

                  Amend Article 9th of the Articles of Incorporation to provide
                  for a two-tiered supermajority clause regarding fundamental
                  transactions.




                          VOTES CAST                VOTES CAST               VOTES                 BROKER
                             "FOR"                   "AGAINST"            "ABSTAINED"             NON-VOTE
                  -----------------------      ------------------     ------------------    --------------
                                                                                    
                           4,099,896                  152,631               136,101                333,582



ITEM 5 - OTHER INFORMATION - NOTHING TO REPORT.

                                       17





ITEM 6 - EXHIBITS

         The following Exhibits are included in this Report:

         Exhibit 3(i)      Articles of Incorporation of ACNB Corporation,
                           as amended (Incorporated by Reference to Exhibit 3(i)
                           of the Registrant's Annual Report on Form 10-K for
                           the year ended December 31, 2004, filed with the
                           Commission on March 15, 2005).

         Exhibit 3(ii)     Bylaws of Registrant; a copy of the Bylaws, as
                           amended (Incorporated by Reference to Exhibit 99 of
                           the Registrant's Report of Form 8-K, filed with the
                           Commission on December 19, 2003).

         Exhibit 10.1      Executive Employment Agreement Dated as of
                           January 1, 2000 between Adams County National Bank,
                           ACNB Corporation and Thomas A. Ritter (Incorporated
                           by Reference to Exhibit 99 of the Registrant's
                           Current Report on Form 8-K, filed with the Commission
                           on March 26, 2001).

         Exhibit 10.2      ACNB Corporation, ACNB Acquisition Subsidiary
                           LLC, Russell Insurance Group, Inc. Stock Purchase
                           Agreement. (Incorporated by reference to Exhibit 10.2
                           of the Registrant's Annual Report on Form 10-K for
                           the year ended December 31, 2004, filed with the
                           Commission on March 15, 2005.)

         Exhibit 10.3      Salary Continuation Agreement - applicable to
                           Thomas A. Ritter, Lynda L. Glass, John W. Krichten,
                           John M. Kiehl, Carl L. Ricker and Ronald L. Hankey.
                           (Incorporated by reference to Exhibit 10.3 of the
                           Registrant's Annual Report on Form 10-K for the year
                           ended December 31, 2004, filed with the Commission on
                           March 15, 2005.)

         Exhibit 10.4      Executive Supplemental Life Insurance Plan -
                           applicable to Gary Bennett, Lynda L. Glass, Ronald L.
                           Hankey, John M. Kiehl, John W. Krichten, Carl L.
                           Ricker and Thomas A. Ritter. (Incorporated by
                           reference to Exhibit 10.4 of the Registrant's Annual
                           Report on Form 10-K for the year ended December 31,
                           2004, filed with the Commission on March 15, 2005.)

         Exhibit 10.5      Director Supplemental Life Insurance Plan - 
                           applicable to Philip P. Asper, Frank Elsner, III, 
                           D. Richard Guise, Wayne E. Lau, William B. Lower,
                           Daniel W. Potts, Marian B. Schultz, Jennifer L. 
                           Weaver and Harry L. Wheeler. (Incorporated by 
                           reference to Exhibit 10.5 of the Registrant's  
                           Annual Report on Form 10-K for the year ended 
                           December 31, 2004, filed with the Commission on 
                           March 15, 2005.)

         Exhibit 10.6      Director Deferred Fee  Agreement - applicable to 
                           Frank Elsner,  III, D. Richard  Guise, Marian B. 
                           Schlutz, Jennifer L. Weaver and Harry L. Wheeler.
                           (Incorporated  by reference to Exhibit 10.6 of the 
                           Registrant's Annual Report on Form 10-K for the year
                           ended December 31, 2004, filed with the Commission 
                           on March 15, 2005.)

         Exhibit 10.7      Adams County National Bank Salary Savings Plan.
                           (Incorporated by reference to Exhibit 10.7 of the
                           Registrant's Annual Report on Form 10-K for the year
                           ended December 31, 2004, filed with the Commission on
                           March 15, 2005.)

         Exhibit 10.8      Group Pension Plan for Employees of Adams County
                           National Bank. (Incorporated by reference to Exhibit
                           10.8 of the Registrant's Annual Report on Form 10-K
                           for the year ended December 31, 2004, filed with the
                           Commission on March 15, 2005.)

         Exhibit 14        Code of Ethics (incorporated by reference to
                           Exhibit 14 of the registrants annual report on Form
                           10-K for the year ended December 31, 2003, filed with
                           the Commission on March 12, 2004)

                                       18




         Exhibit 16.1      Letter re Change in Certifying Accountant
                           (Incorporated by reference to Exhibit 16.1 of the
                           Registrant's annual report on Form 10-K for the year
                           ended December 31, 2003, filed with the Commission
                           March 12, 2004)

         Exhibit 23        Consent of Stambaugh Ness, P.C. (Incorporated by
                           reference to Exhibit 23 of the Registrant's annual
                           report on Form 10-K for the year ended December 31,
                           2004, filed with the Commission on March 15, 2005).

         Exhibit 31.1      Chief Executive Officer Certification of quarterly 
                           report on Form 10-Q

         Exhibit 31.2      Chief Financial Officer Certification of quarterly 
                           report on Form 10-Q

         Exhibit 32.1      Chief Executive Officer certification pursuant to 
                           18 U.S.C. Section 1350 as Added by Section 906 of the
                           Sarbanes-Oxley Act of 2002

         Exhibit 32.2      Chief Financial Officer certification pursuant to 18 
                           U.S.C. Section 1350 as Added by Section 906 of the
                           Sarbanes-Oxley Act of 2002

         Exhibit 99        Independent Auditors' Report for the consolidated
                           statement of condition of ACNB Corporation and
                           subsidiaries as of December 31, 2003 and the related
                           consolidated statements of income, changes in
                           stockholders' equity and cash flows for each of the
                           years in the two-year period ended December 31, 2003.
                           (Incorporated by reference to Exhibit 99 of the
                           Registrant's annual report on Form 10-K for the year
                           ended December 31, 2004, filed with the Commission on
                           March 15, 2005).

                                       19



                                   SIGNATURES


Pursuant to the requirements of the Securities Exchange Act of 1934, the
Corporation has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.





                  September 20, 2005                                 /s/ Thomas A. Ritter                                  
-----------------------------------------------------             ---------------------------------------------------------
                                                               
                                                                  Thomas A. Ritter, President/Chief Executive Officer



                                                                      /s/ John W. Krichten                                 
                                                                  ---------------------------------------------------------
                                                                  John W. Krichten, Secretary/Treasurer

                                       20