UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                           Washington, D.C.  20549

                                   FORM 8-A

              FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES 
                   PURSUANT TO SECTION 12(b) OR (g) OF THE 
                      SECURITIES EXCHANGE ACT OF 1934

                                  SJW Corp.
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         (Exact name of registrant as specified in its charter)

                 California                            77-0066628
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(State of incorporation or organization)    (IRS Employer Identification No.)

      374 West Santa Clara, San Jose, California             95113
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       (Address of principal executive offices)            (Zip Code)

Securities to be registered pursuant to Section 12(b) of the Act:

             Title of each class               Name of each exchange on which
             to be so registered               each class is to be registered

       Common Stock, par value $1.042              New York Stock Exchange
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If this form relates to the registration of a class of securities pursuant to 
Section 12(b) of the Exchange Act and is effective pursuant to
General Instruction A.(c), check the following box. [x]

If this form relates to the registration of a class of securities pursuant to 
Section 12(g) of the Exchange Act and is effective pursuant to 
General Instruction A.(d), please check the following box.  [ ]

Securities Act registration statement file number to which this form relates:

                              N/A (if applicable)
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Securities to be registered pursuant to Section 12(g) of the Act:

                                     N/A
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                               (Title of Class)

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                               (Title of Class)

                INFORMATION REQUIRED IN REGISTRATION STATEMENT

Item 1.  Description of Registrant's Securities to be Registered.

General

     The class of securities to be registered hereby is the common stock, 
$1.042 par value per share (the "Common Stock"), of SJW Corp.  The following 
is a description of the Common Stock, as well as the rights, preferences and 
restrictions of other authorized capital stock of SJW Corp. that may affect 
the rights of holders of Common Stock.

Common Stock

     The Company is authorized to issue 18,000,000 shares of Common Stock, of 
which 9,135,441 shares were outstanding as of September 30, 2005.  Under our 
restated articles of incorporation, as amended, the holders of Common Stock 
are entitled to one vote per share on all matters to be voted on by the 
stockholders.  After payment of any dividends due and owing to the holders of 
preferred stock, holders of Common Stock are entitled to receive dividends 
declared by the Board of Directors out of funds legally available for 
dividends.  In the event of our liquidation, dissolution or winding up, 
holders of Common Stock are entitled to share in all assets remaining after 
payment of liabilities and liquidation preferences of outstanding shares of 
preferred stock.  Holders of Common Stock have no preemptive, conversion, 
subscription or other rights.  There are no redemption or sinking fund 
provisions applicable to the Common Stock.  All outstanding shares of Common 
Stock are fully paid and nonassessable.  American Stock Transfer & Trust 
Company is the transfer agent and registrar for the Common Stock.

Preferred Stock

     In accordance with our restated articles of incorporation, as amended, 
our Board of Directors has the authority, without further action by the 
stockholders, to issue up to 176,407 shares of preferred stock, $25 par value 
per share.  Our Board may issue 2,645 shares of cumulative preferred stock, 
Series A ("Series A Preferred"), 196 shares of cumulative preferred stock, 
Series B ("Series B Preferred"), 200 shares of cumulative preferred stock, 
Series C ("Series C Preferred"), 200 shares of cumulative preferred stock, 
Series D ("Series D Preferred"), 166 shares of cumulative preferred stock, 
Series E ("Series E Preferred"), 4,000 shares of cumulative preferred stock, 
Series G ("Series G Preferred"), and 9,000 shares of cumulative preferred 
stock, Series H ("Series H Preferred").  In addition, our Board is authorized 
to issue an aggregate of 160,000 preferred shares of Series I, Series J, 
Series K, Series L, Series M and Series N, the number of shares constituting 
each of such series as is determined by our Board.  The Series A Preferred, 
Series B Preferred, Series C Preferred, Series D Preferred, Series E 
Preferred, Series G Preferred and Series H Preferred shall have such rights, 
preferences and privileges as set forth in our restated articles of 
incorporation, as amended.  Our Board of Directors shall determine the 
dividend rates, conversion rights, if any, sinking fund provisions, if any, 
redemption prices and liquidation preferences of the Series I, Series J, 
Series K, Series L, Series M and Series N preferred shares, if issued.

     Our Common Stock is subject to and subordinate to any rights, 
preferences, privileges and restrictions which are granted to any preferred 
stock in our restated articles of incorporation, as amended, or which may 
hereafter be granted to any series of preferred stock by our Board of 
Directors pursuant to the authority conferred upon it in our restated 
articles of incorporation, as amended.  The issuance of preferred shares may 
have the effect of delaying, deferring or preventing a change of control of 
the Company.

     Our restated articles of incorporation, as amended by a certificate of 
amendment, are filed as exhibits hereto.  The foregoing description of our 
capital stock does not purport complete and is qualified in its entirety by 
reference to such exhibits.

     No shares of preferred stock are issued and outstanding.
     
Item 2.  Exhibits.

Exhibit Number  Description
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     3.1        Restated Articles of Incorporation (incorporated by reference 
                to Exhibit 3.1 to Registrant's Form 10-K filed with the
                Securities and Exchange Commission on March 12, 2002)

     3.2        Certificate of Amendment of the Restated Articles of 
                Incorporation (incorporated by reference to Exhibit 3.2 to 
                Registrant's Form 10-K filed with the Securities and Exchange
                Commission on March 7, 2005)

     3.3        By-Laws (incorporated by reference to Exhibit 3.1 to 
                Registrant's Form 10-Q filed with the Securities and Exchange
                Commission on May 6, 2005)

                                    SIGNATURE

Pursuant to the requirements of Section 12 of the Securities Exchange Act of 
1934, the registrant has duly caused this registration statement to be signed 
on its behalf by the undersigned, thereunto duly authorized.


Dated:          October 28, 2005       SJW CORP.


                                       /s/ W. Richard Roth
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                                       W. Richard Roth
                                       Chief Executive Officer

                                INDEX TO EXHIBITS

Exhibit Number  Description
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     3.1        Restated Articles of Incorporation (incorporated by reference 
                to Exhibit 3.1 to Registrant's Form 10-K filed with the
                Securities and Exchange Commission on March 12, 2002)

     3.2        Certificate of Amendment of the Restated Articles of 
                Incorporation (incorporated by reference to Exhibit 3.2 to 
                Registrant's Form 10-K filed with the Securities and Exchange
                Commission on March 7, 2005)

     3.3        By-Laws (incorporated by reference to Exhibit 3.1 to 
                Registrant's Form 10-Q filed with the Securities and Exchange
                Commission on May 6, 2005)