<TABLE> <S> <C>

<PAGE>
<ARTICLE> 9
       
<S>                             <C>                     <C>                     <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   YEAR                   YEAR                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1997             DEC-31-1997             DEC-31-1996             DEC-31-1995
<PERIOD-START>                             JAN-01-1997             JAN-01-1997             JAN-01-1996             JAN-01-1995
<PERIOD-END>                               MAR-31-1997             DEC-31-1997             DEC-31-1996             DEC-31-1995
<CASH>                                          24,431                  20,405                  19,733                  24,050
<INT-BEARING-DEPOSITS>                           1,310                   2,401                   1,537                   4,527
<FED-FUNDS-SOLD>                                21,800                  32,000                  16,700                  19,300
<TRADING-ASSETS>                                     0                       0                       0                       0
<INVESTMENTS-HELD-FOR-SALE>                    237,493                 266,589                 205,138                 212,433
<INVESTMENTS-CARRYING>                         118,129                 172,708                  99,142                  69,702
<INVESTMENTS-MARKET>                           119,227                 175,842                 101,012                  72,280
<LOANS>                                        585,368                 621,992                 559,281                 443,169
<ALLOWANCE>                                      6,936                   8,260                   6,402                   4,558
<TOTAL-ASSETS>                               1,015,508               1,152,743                 925,290                 793,573
<DEPOSITS>                                     919,988                 902,788                 780,607                 700,543
<SHORT-TERM>                                    43,275                  89,863                  34,425                       0
<LIABILITIES-OTHER>                              8,595                  10,137                   6,899                   9,337
<LONG-TERM>                                     25,196                  43,940                  25,267                  10,000
<PREFERRED-MANDATORY>                                0                       0                       0                       0
<PREFERRED>                                          0                       0                   3,250                   3,750
<COMMON>                                        40,055                  71,067                  40,224                  23,474
<OTHER-SE>                                      35,238                  14,811                  34,618                  46,469
<TOTAL-LIABILITIES-AND-EQUITY>               1,015,508               1,152,743                 925,290                 793,573
<INTEREST-LOAN>                                 12,516                  52,901                  45,373                  37,681
<INTEREST-INVEST>                                5,372                  26,303                  19,507                  17,983
<INTEREST-OTHER>                                   330                   1,101                     927                   1,652
<INTEREST-TOTAL>                                18,218                  80,305                  65,807                  57,316
<INTEREST-DEPOSIT>                               7,879                  35,242                  29,868                  27,440
<INTEREST-EXPENSE>                               9,069                  41,827                  31,707                  28,320
<INTEREST-INCOME-NET>                            9,149                  38,478                  34,100                  28,996
<LOAN-LOSSES>                                      641                   2,362                   2,344                   1,290
<SECURITIES-GAINS>                                   8                   1,113                     842                     255
<EXPENSE-OTHER>                                  5,613                  24,398                  21,566                  20,148
<INCOME-PRETAX>                                  3,803                  16,521                  15,369                  15,084
<INCOME-PRE-EXTRAORDINARY>                       3,803                  16,521                  15,369                  15,084
<EXTRAORDINARY>                                      0                       0                       0                       0
<CHANGES>                                            0                       0                       0                       0
<NET-INCOME>                                     2,597                  11,499                  10,269                  10,164
<EPS-PRIMARY>                                     0.18                    0.82                    0.72                    0.71
<EPS-DILUTED>                                     0.17                    0.76                    0.68                    0.69
<YIELD-ACTUAL>                                       0                       0                       0                       0
<LOANS-NON>                                      9,175                   7,254                   9,568                   5,019
<LOANS-PAST>                                       703                     216                     295                     650
<LOANS-TROUBLED>                                 1,902                     629                   3,136                   4,074
<LOANS-PROBLEM>                                    811                     150                     650                       0
<ALLOWANCE-OPEN>                                 6,402                   6,402                   4,558                   3,970
<CHARGE-OFFS>                                      127                     669                     598                     773
<RECOVERIES>                                        20                     165                      98                      71
<ALLOWANCE-CLOSE>                                6,936                   8,260                   6,402                   4,558
<ALLOWANCE-DOMESTIC>                             6,936                   8,260                   6,402                   4,558
<ALLOWANCE-FOREIGN>                                  0                       0                       0                       0
<ALLOWANCE-UNALLOCATED>                              0                       0                       0                       0
        

</TABLE>