<TABLE> <S> <C>

<PAGE>
<ARTICLE> 9
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM AUDITED 
FINANCIAL STATEMENTS CONTAINED IN THE COMPANY'S ANNUAL REPORT IN FORM 10-K FOR 
THE YEAR ENDED DECEMBER 31, 1998 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE 
TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<CASH>                                         250,963
<INT-BEARING-DEPOSITS>                           5,067
<FED-FUNDS-SOLD>                                   100
<TRADING-ASSETS>                                     0
<INVESTMENTS-HELD-FOR-SALE>                  1,980,530
<INVESTMENTS-CARRYING>                          69,906
<INVESTMENTS-MARKET>                            69,906
<LOANS>                                      3,386,142
<ALLOWANCE>                                     50,173
<TOTAL-ASSETS>                               6,002,972
<DEPOSITS>                                   4,884,672
<SHORT-TERM>                                   292,669
<LIABILITIES-OTHER>                            206,913
<LONG-TERM>                                     93,472
<PREFERRED-MANDATORY>                          120,000
<PREFERRED>                                          0
<COMMON>                                           477
<OTHER-SE>                                     404,769
<TOTAL-LIABILITIES-AND-EQUITY>               6,002,972
<INTEREST-LOAN>                                323,315
<INTEREST-INVEST>                              122,173
<INTEREST-OTHER>                                 3,756
<INTEREST-TOTAL>                               449,244
<INTEREST-DEPOSIT>                             160,576
<INTEREST-EXPENSE>                             188,484
<INTEREST-INCOME-NET>                          260,760
<LOAN-LOSSES>                                   22,509
<SECURITIES-GAINS>                               1,801
<EXPENSE-OTHER>                                230,092
<INCOME-PRETAX>                                 68,419
<INCOME-PRE-EXTRAORDINARY>                      46,971
<EXTRAORDINARY>                                (3,908)
<CHANGES>                                            0
<NET-INCOME>                                    43,063
<EPS-PRIMARY>                                      .91
<EPS-DILUTED>                                      .90
<YIELD-ACTUAL>                                       0
<LOANS-NON>                                     22,517
<LOANS-PAST>                                     3,088
<LOANS-TROUBLED>                                   162
<LOANS-PROBLEM>                                      0
<ALLOWANCE-OPEN>                                40,045
<CHARGE-OFFS>                                   17,966
<RECOVERIES>                                     3,635
<ALLOWANCE-CLOSE>                               50,173
<ALLOWANCE-DOMESTIC>                            27,938
<ALLOWANCE-FOREIGN>                                  0
<ALLOWANCE-UNALLOCATED>                         22,235
        

</TABLE>