<TABLE> <S> <C>

<PAGE>
<ARTICLE> 9
<LEGEND>
This schedule contains summary financial information extracted from unaudited
financial statements contained in the company's quarterly report in Form 10-Q
for quarter ended March 31, 1999, and is qualified in its entirety by reference
to such financial statements.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               MAR-31-1999
<CASH>                                         198,860
<INT-BEARING-DEPOSITS>                          10,457
<FED-FUNDS-SOLD>                                   195
<TRADING-ASSETS>                                     0
<INVESTMENTS-HELD-FOR-SALE>                  2,001,197
<INVESTMENTS-CARRYING>                          70,556
<INVESTMENTS-MARKET>                            70,556
<LOANS>                                      3,327,424
<ALLOWANCE>                                     51,422
<TOTAL-ASSETS>                               5,916,813
<DEPOSITS>                                   4,772,081
<SHORT-TERM>                                   293,990
<LIABILITIES-OTHER>                            230,506
<LONG-TERM>                                     94,443
<PREFERRED-MANDATORY>                          120,000
<PREFERRED>                                          0
<COMMON>                                           477
<OTHER-SE>                                     405,316
<TOTAL-LIABILITIES-AND-EQUITY>               5,916,813
<INTEREST-LOAN>                                 78,323
<INTEREST-INVEST>                               31,748
<INTEREST-OTHER>                                    85
<INTEREST-TOTAL>                               110,156
<INTEREST-DEPOSIT>                              36,925
<INTEREST-EXPENSE>                              44,161
<INTEREST-INCOME-NET>                           65,995
<LOAN-LOSSES>                                    4,731
<SECURITIES-GAINS>                                 530
<EXPENSE-OTHER>                                 50,148
<INCOME-PRETAX>                                 26,794
<INCOME-PRE-EXTRAORDINARY>                      17,611
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    17,611
<EPS-PRIMARY>                                      .37
<EPS-DILUTED>                                      .37
<YIELD-ACTUAL>                                       0
<LOANS-NON>                                     26,800
<LOANS-PAST>                                     1,574
<LOANS-TROUBLED>                                   143
<LOANS-PROBLEM>                                      0
<ALLOWANCE-OPEN>                                50,173
<CHARGE-OFFS>                                    5,179
<RECOVERIES>                                     1,697
<ALLOWANCE-CLOSE>                               51,422
<ALLOWANCE-DOMESTIC>                                 0
<ALLOWANCE-FOREIGN>                                  0
<ALLOWANCE-UNALLOCATED>                              0
        

</TABLE>