SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20552


                                    FORM 8-K

                                 CURRENT REPORT

                       Pursuant to Section 13 or 15(d) of
                       the Securities Exchange Act of 1934


                                 April 22, 2004
             ------------------------------------------------------
                Date of Report (Date of earliest event reported)




                            Advance Financial Bancorp
             ------------------------------------------------------
             (Exact name of Registrant as specified in its Charter)


           Delaware                       0-21885              55-0753533
- ----------------------------             ----------          -------------
(State or other jurisdiction             (File No.)          (IRS Employer
 of incorporation)                                        Identification Number)


1015 Commerce Street, Wellsburg, West Virginia                    26070
- ----------------------------------------------                    -----
(Address of principal executive offices)                       (Zip Code)


Registrant's telephone number, including area code:   (304) 737-3531
                                                      --------------


                                 Not Applicable
          -------------------------------------------------------------
          (Former name or former address, if changed since last Report)




                            ADVANCE FINANCIAL BANCORP

                      INFORMATION TO BE INCLUDED IN REPORT
                      ------------------------------------


Item 7.  Financial Statements, Pro Forma Financial Information
         and Exhibits
         ------------


     Exhibit
     Number            Description
     ------            -----------
       99       Press Release dated April 22, 2004


Item 12.  Results of Operations and Financial Condition
          ---------------------------------------------

         On April 22,  2004,  the  Registrant  issued a press  release to report
earnings for the quarter  ended March 31,  2004. A copy of the press  release is
furnished with this Form 8-K as exhibit 99.




                                   SIGNATURES


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

                                    ADVANCE FINANCIAL BANCORP



Date: April 22, 2004                By:   /s/Stephen M. Magnone
                                          --------------------------------------
                                          Stephen M. Magnone
                                          Treasurer