Exhibit 99.1
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                              PACIFIC STATE BANCORP

                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350.
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002


         In connection with the Annual Report of Pacific State Bancorp (the
"Company") on Form 10-K for the year ended December 31, 2002, as filed with the
Securities and Exchange Commission (the "Report"), the undersigned hereby
certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section
906 of the Sarbanes-Oxley Act of 2002, to the best of his knowledge, that:

         (1)      The Report fully complies with the requirements of Section 13
                  (a) or 15 (d) of the Securities and Exchange Act of 1934; and

         (2)      The information contained in the Report fairly presents, in
                  all material respects, the financial condition and results of
                  operations of the Company



/s/ STEVEN A. ROSSO                                         Date: March 20, 2003
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Steven A. Rosso
President and Chief Executive Officer
Acting Chief Financial Officer


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