<TABLE> <S> <C>

<PAGE>
<ARTICLE> 9
<RESTATED> 
<MULTIPLIER> 1,000
       
<S>                             <C>                     <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   6-MOS                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1997             DEC-31-1997             DEC-31-1997
<PERIOD-START>                             JAN-01-1997             JAN-01-1997             JAN-01-1997
<PERIOD-END>                               MAR-31-1997             JUN-30-1997             SEP-30-1997
<CASH>                                          57,863                  63,365                  56,775
<INT-BEARING-DEPOSITS>                           2,940                   2,853                   3,644
<FED-FUNDS-SOLD>                                15,798                  14,043                  18,487
<TRADING-ASSETS>                                     0                       0                       0
<INVESTMENTS-HELD-FOR-SALE>                          0                       0                       0
<INVESTMENTS-CARRYING>                               0                       0                       0
<INVESTMENTS-MARKET>                           436,335                 429,595                 425,273
<LOANS>                                      1,301,585               1,343,041               1,380,999
<ALLOWANCE>                                     13,024                  13,054                  13,765
<TOTAL-ASSETS>                               1,877,584               1,918,306               1,961,702
<DEPOSITS>                                   1,492,870               1,499,891               1,526,092
<SHORT-TERM>                                    81,649                  75,907                  79,582
<LIABILITIES-OTHER>                             17,175                  18,753                  21,134
<LONG-TERM>                                     93,981                 130,296                 122,456
<PREFERRED-MANDATORY>                            3,814                   3,875                   3,925
<PREFERRED>                                          0                       0                       0
<COMMON>                                        15,453                  15,330                  15,607
<OTHER-SE>                                     172,642                 174,254                 192,906
<TOTAL-LIABILITIES-AND-EQUITY>               1,877,854               1,918,306               1,961,702
<INTEREST-LOAN>                                 28,660                  59,008                  90,555
<INTEREST-INVEST>                                6,508                  13,131                  19,555
<INTEREST-OTHER>                                   335                     640                   1,038
<INTEREST-TOTAL>                                35,503                  72,779                 111,148
<INTEREST-DEPOSIT>                              13,836                  28,261                  43,183
<INTEREST-EXPENSE>                              15,941                  32,918                  50,706
<INTEREST-INCOME-NET>                           19,562                  39,861                  60,442
<LOAN-LOSSES>                                    3,099                   6,055                   9,015
<SECURITIES-GAINS>                                 472                     623                     686
<EXPENSE-OTHER>                                 12,451                  25,434                  38,554
<INCOME-PRETAX>                                  9,930                  20,219                  30,398
<INCOME-PRE-EXTRAORDINARY>                       9,930                  20,219                  30,398
<EXTRAORDINARY>                                      0                       0                       0
<CHANGES>                                            0                       0                       0
<NET-INCOME>                                     6,796                  13,921                  20,932
<EPS-PRIMARY>                                      .41                     .84                    1.26
<EPS-DILUTED>                                      .41                     .83                    1.25
<YIELD-ACTUAL>                                       0                       0                       0
<LOANS-NON>                                          0                       0                       0
<LOANS-PAST>                                         0                       0                       0
<LOANS-TROUBLED>                                     0                       0                       0
<LOANS-PROBLEM>                                      0                       0                       0
<ALLOWANCE-OPEN>                                     0                       0                       0
<CHARGE-OFFS>                                        0                       0                       0
<RECOVERIES>                                         0                       0                       0
<ALLOWANCE-CLOSE>                                    0                       0                       0
<ALLOWANCE-DOMESTIC>                                 0                       0                       0
<ALLOWANCE-FOREIGN>                                  0                       0                       0
<ALLOWANCE-UNALLOCATED>                              0                       0                       0
        

</TABLE>