<TABLE> <S> <C>

<PAGE>

<ARTICLE> 9
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY INFORMATION EXTRACTED FROM THE FORM 10-Q AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000

<S>                             <C>                     <C>                     <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   6-MOS                   9-MOS                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1997             DEC-31-1997             DEC-31-1997             DEC-31-1997
<PERIOD-START>                             JAN-01-1997             JAN-01-1997             JAN-01-1997             JAN-01-1997
<PERIOD-END>                               MAR-31-1997             JUN-30-1997             SEP-30-1997             DEC-31-1997
<CASH>                                           2,254                   2,205                   2,218                   2,580
<INT-BEARING-DEPOSITS>                          13,098                  25,993                  26,663                  21,943
<FED-FUNDS-SOLD>                                27,700                   1,600                     825                   1,550
<TRADING-ASSETS>                                     0                       0                       0                       0
<INVESTMENTS-HELD-FOR-SALE>                     85,546                  91,456                  60,356                       0
<INVESTMENTS-CARRYING>                          14,966                   9,969                   9,971                   9,973
<INVESTMENTS-MARKET>                            15,233                  10,303                  10,417                  10,553
<LOANS>                                        552,289                 568,475                 566,634                 580,109
<ALLOWANCE>                                        685                     715                     715                     715
<TOTAL-ASSETS>                                 709,011                 714,366                 681,215                 675,684
<DEPOSITS>                                     497,199                 510,228                 506,469                 495,055
<SHORT-TERM>                                    20,000                   8,000                  86,000                       0
<LIABILITIES-OTHER>                             19,517                  25,964                 523,453                   2,024
<LONG-TERM>                                    100,000                 100,000                       0                       0
<PREFERRED-MANDATORY>                                0                       0                       0                       0
<PREFERRED>                                          0                       0                       0                       0
<COMMON>                                            86                      86                      86                      86
<OTHER-SE>                                      72,209                  70,088                  71,676                  72,897
<TOTAL-LIABILITIES-AND-EQUITY>                 709,011                 714,366                 681,215                 675,684
<INTEREST-LOAN>                                  9,983                  20,425                  30,880                  41,464
<INTEREST-INVEST>                                2,090                   4,181                   6,326                   7,413
<INTEREST-OTHER>                                     0                       0                       0                     349
<INTEREST-TOTAL>                                12,073                  24,606                  37,206                  49,226
<INTEREST-DEPOSIT>                               6,422                  13,094                  20,007                  26,686
<INTEREST-EXPENSE>                               1,217                  15,962                  24,485                   5,643
<INTEREST-INCOME-NET>                            4,434                   8,644                  12,721                  16,897
<LOAN-LOSSES>                                       20                      50                      50                      45
<SECURITIES-GAINS>                                   0                       0                       0                       0
<EXPENSE-OTHER>                                  1,172                   2,471                   3,731                   5,060
<INCOME-PRETAX>                                  3,372                   6,663                   9,598                  12,621
<INCOME-PRE-EXTRAORDINARY>                           0                       0                       0                  12,621
<EXTRAORDINARY>                                      0                       0                       0                       0
<CHANGES>                                            0                       0                       0                       0
<NET-INCOME>                                     1,996                   3,910                   5,756                   7,575
<EPS-PRIMARY>                                      .30                     .64                     .97                    1.29
<EPS-DILUTED>                                      .29                     .61                     .92                    1.23
<YIELD-ACTUAL>                                    2.56                    2.39                    2.43                    2.45
<LOANS-NON>                                        412                     391                     540                     634
<LOANS-PAST>                                         0                       0                       0                       0
<LOANS-TROUBLED>                                     0                       0                       0                       0
<LOANS-PROBLEM>                                      0                       0                       0                       0
<ALLOWANCE-OPEN>                                   655                     685                     715                     665
<CHARGE-OFFS>                                        0                       0                       0                       0
<RECOVERIES>                                         0                       0                       0                       5
<ALLOWANCE-CLOSE>                                  685                      30                     715                     715
<ALLOWANCE-DOMESTIC>                               685                       0                     715                     715
<ALLOWANCE-FOREIGN>                                  0                       0                       0                       0
<ALLOWANCE-UNALLOCATED>                            685                     715                       0                       0


</TABLE>