<TABLE> <S> <C>

<PAGE>

<ARTICLE> 9
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE BALANCE
SHEET AS OF SEPTEMBER 30, 2000, FROM THE INCOME STATEMENT FOR THE 9 MONTHS ENDED
SEPTEMBER 30, 2000 AND FROM MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
CONDITION AND RESULTS OF OPERATIONS FOR THE PERIOD ENDED SEPTEMBER 30, 2000, AND
IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000

<S>                             <C>
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-END>                               SEP-30-2000
<CASH>                                         238,885
<INT-BEARING-DEPOSITS>                             154
<FED-FUNDS-SOLD>                                28,866
<TRADING-ASSETS>                                     0
<INVESTMENTS-HELD-FOR-SALE>                  1,661,878
<INVESTMENTS-CARRYING>                          48,770
<INVESTMENTS-MARKET>                            48,886
<LOANS>                                      6,442,356
<ALLOWANCE>                                    133,209
<TOTAL-ASSETS>                               8,647,898
<DEPOSITS>                                   6,438,983
<SHORT-TERM>                                   914,294
<LIABILITIES-OTHER>                            106,815
<LONG-TERM>                                     92,547
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                       139,901
<OTHER-SE>                                     955,358
<TOTAL-LIABILITIES-AND-EQUITY>               8,647,898
<INTEREST-LOAN>                                399,361
<INTEREST-INVEST>                               71,976
<INTEREST-OTHER>                                 1,319
<INTEREST-TOTAL>                               472,656
<INTEREST-DEPOSIT>                             130,232
<INTEREST-EXPENSE>                             170,558
<INTEREST-INCOME-NET>                          302,098
<LOAN-LOSSES>                                   12,745
<SECURITIES-GAINS>                                  69
<EXPENSE-OTHER>                                179,662
<INCOME-PRETAX>                                202,914
<INCOME-PRE-EXTRAORDINARY>                     202,914
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   129,502
<EPS-BASIC>                                       1.88
<EPS-DILUTED>                                     1.87
<YIELD-ACTUAL>                                    5.27
<LOANS-NON>                                     23,971
<LOANS-PAST>                                         0
<LOANS-TROUBLED>                                     0
<LOANS-PROBLEM>                                  2,607
<ALLOWANCE-OPEN>                               117,997
<CHARGE-OFFS>                                    4,155
<RECOVERIES>                                     2,962
<ALLOWANCE-CLOSE>                              133,209
<ALLOWANCE-DOMESTIC>                           133,209
<ALLOWANCE-FOREIGN>                                  0
<ALLOWANCE-UNALLOCATED>                              0


</TABLE>