<TABLE> <S> <C>

<PAGE>
<ARTICLE> 9
<RESTATED> 
<MULTIPLIER> 1,000
       
<S>                             <C>                     <C>                     <C>                     <C>
<PERIOD-TYPE>                   YEAR                   3-MOS                   6-MOS                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1996             DEC-31-1997             DEC-31-1997             DEC-31-1997
<PERIOD-START>                             JAN-01-1996             JAN-01-1997             JAN-01-1997             JAN-01-1997
<PERIOD-END>                               DEC-31-1996             MAR-31-1997             JUN-30-1997             SEP-30-1997
<CASH>                                          49,487                  48,536                  52,690                  57,183
<INT-BEARING-DEPOSITS>                           2,391                   6,973                  12,715                  14,528
<FED-FUNDS-SOLD>                                 7,835                   3,076                  17,660                   3,680
<TRADING-ASSETS>                                     0                       0                       0                       0
<INVESTMENTS-HELD-FOR-SALE>                    244,687                 261,231                 262,687                 271,279
<INVESTMENTS-CARRYING>                               0                       0                       0                       0
<INVESTMENTS-MARKET>                                 0                       0                       0                       0
<LOANS>                                        468,188                 472,763                 467,529                 487,561
<ALLOWANCE>                                      8,933                   8,593                   7,858                   8,189
<TOTAL-ASSETS>                                 800,610                 820,678                 843,225                 864,339
<DEPOSITS>                                     587,893                 595,698                 599,821                 589,504
<SHORT-TERM>                                    84,524                  81,917                  90,400                 109,746
<LIABILITIES-OTHER>                             11,413                   9,607                   9,503                   9,952
<LONG-TERM>                                     52,020<F1>              67,556<F1>              75,050<F1>               84,460<F1>

<PREFERRED-MANDATORY>                                0                       0                       0                       0
<PREFERRED>                                          0                       0                       0                       0
<COMMON>                                        13,634                  13,955                  13,978                  14,248
<OTHER-SE>                                      51,126                  51,945                  54,473                  56,429
<TOTAL-LIABILITIES-AND-EQUITY>                 800,610                 820,678                 843,225                 864,339
<INTEREST-LOAN>                                 43,450                  11,384                  23,141                  34,888
<INTEREST-INVEST>                               12,749                   3,613                   7,335                  11,223
<INTEREST-OTHER>                                   916                     126                     397                     693
<INTEREST-TOTAL>                                57,115                  15,123                  30,873                  46,804
<INTEREST-DEPOSIT>                              22,445                   5,870                  11,880                  17,839
<INTEREST-EXPENSE>                              28,153                   7,809                  15,989                  24,398
<INTEREST-INCOME-NET>                           28,962                   7,314                  14,884                  22,406
<LOAN-LOSSES>                                    1,155                     330                     735                   1,290
<SECURITIES-GAINS>                                (82)                       0                   (129)                   (129)
<EXPENSE-OTHER>                                 18,623                   4,913                   9,967                  15,331
<INCOME-PRETAX>                                 13,638                   3,114                   6,339                   9,096
<INCOME-PRE-EXTRAORDINARY>                       9,810                   2,298                   4,702                   6,799
<EXTRAORDINARY>                                      0                       0                       0                       0
<CHANGES>                                            0                       0                       0                       0
<NET-INCOME>                                     9,810                   2,298                   4,702                   6,799
<EPS-PRIMARY>                                     4.65<F2>                1.08<F2>                2.20<F2>                3.18<F2>
<EPS-DILUTED>                                     4.59                    1.06                    2.16                    3.12
<YIELD-ACTUAL>                                    4.52                    4.18                    4.31                    4.26
<LOANS-NON>                                      1,702                   1,932                   1,530                   2,448
<LOANS-PAST>                                       256                     280                     880                   1,484
<LOANS-TROUBLED>                                   351                       0                      33                      29
<LOANS-PROBLEM>                                      0                       0                   5,000                   5,200
<ALLOWANCE-OPEN>                                 8,588                   8,933                   8,933                   8,933
<CHARGE-OFFS>                                    1,805                     957                   2,435                   2,893
<RECOVERIES>                                       995                     287                     625                     859
<ALLOWANCE-CLOSE>                                8,933                   8,593                   7,858                   8,189
<ALLOWANCE-DOMESTIC>                             8,933                   8,593                   7,858                   8,189
<ALLOWANCE-FOREIGN>                                  0                       0                       0                       0
<ALLOWANCE-UNALLOCATED>                              0                       0                       0                       0
<FN>
<F1>Long-term and other notes payable
<F2>Basic EPS
</FN>
        

</TABLE>