<ARTICLE> 9 <CIK> 0000726990 <NAME> UNITED SECURITY BANCORP <MULTIPLIER> 1000 <CURRENCY> US <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-START> JAN-01-1999 <PERIOD-END> JUN-30-1999 <EXCHANGE-RATE> 1.00 <CASH> 18635 <INT-BEARING-DEPOSITS> 2793 <FED-FUNDS-SOLD> 0 <TRADING-ASSETS> 0 <INVESTMENTS-HELD-FOR-SALE> 56907 <INVESTMENTS-CARRYING> 749 <INVESTMENTS-MARKET> 752 <LOANS> 399604 <ALLOWANCE> 3996 <TOTAL-ASSETS> 504094 <DEPOSITS> 428849 <SHORT-TERM> 11825 <LIABILITIES-OTHER> 4039 <LONG-TERM> 701 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 44447 <OTHER-SE> 14233 <TOTAL-LIABILITIES-AND-EQUITY> 504094 <INTEREST-LOAN> 19057 <INTEREST-INVEST> 2122 <INTEREST-OTHER> 186 <INTEREST-TOTAL> 21365 <INTEREST-DEPOSIT> 7295 <INTEREST-EXPENSE> 7526 <INTEREST-INCOME-NET> 13839 <LOAN-LOSSES> 517 <SECURITIES-GAINS> 66 <EXPENSE-OTHER> 9640 <INCOME-PRETAX> 7452 <INCOME-PRE-EXTRAORDINARY> 7452 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 5004 <EPS-BASIC> .72 <EPS-DILUTED> .71 <YIELD-ACTUAL> 6.13 <LOANS-NON> 2395 <LOANS-PAST> 485 <LOANS-TROUBLED> 0 <LOANS-PROBLEM> 0 <ALLOWANCE-OPEN> 3819 <CHARGE-OFFS> 505 <RECOVERIES> 165 <ALLOWANCE-CLOSE> 3996 <ALLOWANCE-DOMESTIC> 3996 <ALLOWANCE-FOREIGN> 0 <ALLOWANCE-UNALLOCATED> 0