<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 9
<MULTIPLIER> 1,000
       
<S>                             <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1999             DEC-31-1998
<PERIOD-START>                             JAN-01-1999             JAN-01-1998
<PERIOD-END>                               MAR-31-1999             MAR-31-1998
<CASH>                                          19,431                  66,905
<INT-BEARING-DEPOSITS>                             105                     105
<FED-FUNDS-SOLD>                                     0                       0
<TRADING-ASSETS>                                     0                       0
<INVESTMENTS-HELD-FOR-SALE>                    538,980                 232,241
<INVESTMENTS-CARRYING>                               0                       0
<INVESTMENTS-MARKET>                                 0                       0
<LOANS>                                        521,371                 812,877
<ALLOWANCE>                                      9,913                   9,107
<TOTAL-ASSETS>                               1,111,811               1,142,622
<DEPOSITS>                                     824,278                 775,448
<SHORT-TERM>                                   149,946                 248,799
<LIABILITIES-OTHER>                             15,984                  17,016
<LONG-TERM>                                     71,198                  52,919
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                         1,256                   1,250
<OTHER-SE>                                      49,149                  47,190
<TOTAL-LIABILITIES-AND-EQUITY>               1,111,811               1,142,622
<INTEREST-LOAN>                                 19,933                  16,462
<INTEREST-INVEST>                                2,012                   3,696
<INTEREST-OTHER>                                   170                     159
<INTEREST-TOTAL>                                22,115                  20,317
<INTEREST-DEPOSIT>                              10,655                   9,772
<INTEREST-EXPENSE>                              14,041                  12,858
<INTEREST-INCOME-NET>                            8,074                   7,459
<LOAN-LOSSES>                                    1,218                     649
<SECURITIES-GAINS>                               4,893                   1,534
<EXPENSE-OTHER>                                 13,788                  11,460
<INCOME-PRETAX>                                  3,903                   2,019
<INCOME-PRE-EXTRAORDINARY>                       3,903                   2,019
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                     2,293                   1,264
<EPS-PRIMARY>                                     1.83                     .92
<EPS-DILUTED>                                     1.83                    0.92
<YIELD-ACTUAL>                                    3,36                    3,27
<LOANS-NON>                                      6,176                   7,629
<LOANS-PAST>                                         0                       0
<LOANS-TROUBLED>                                 1,991                   2,010
<LOANS-PROBLEM>                                  8,167                   9,639
<ALLOWANCE-OPEN>                                 9,107                   7,333
<CHARGE-OFFS>                                      412                   3,205
<RECOVERIES>                                       308                   1,035
<ALLOWANCE-CLOSE>                                9,913                   9,107
<ALLOWANCE-DOMESTIC>                                 0                       0
<ALLOWANCE-FOREIGN>                                  0                       0
<ALLOWANCE-UNALLOCATED>                              0                       0
        

</TABLE>