<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 9
<MULTIPLIER> 1,000
       
<S>                             <C>                     <C>
<PERIOD-TYPE>                   9-MOS                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1997             DEC-31-1996
<PERIOD-START>                             JAN-01-1997             JAN-01-1996
<PERIOD-END>                               SEP-30-1997             SEP-30-1996
<CASH>                                          47,469                  57,938
<INT-BEARING-DEPOSITS>                         191,406                 314,192
<FED-FUNDS-SOLD>                                     0                       0
<TRADING-ASSETS>                                66,028                       0
<INVESTMENTS-HELD-FOR-SALE>                     32,355                   7,937
<INVESTMENTS-CARRYING>                               0                       0
<INVESTMENTS-MARKET>                                 0                       0
<LOANS>                                      1,721,155               1,629,923
<ALLOWANCE>                                     28,699                  14,461
<TOTAL-ASSETS>                               2,410,693               2,246,137
<DEPOSITS>                                   1,244,409               1,052,352
<SHORT-TERM>                                   503,755                 338,000
<LIABILITIES-OTHER>                            134,780                 146,222
<LONG-TERM>                                    289,803                  88,169
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                       147,381                 142,943
<OTHER-SE>                                     124,677                  74,082
<TOTAL-LIABILITIES-AND-EQUITY>               2,410,693               2,246,137
<INTEREST-LOAN>                                133,008                 139,284
<INTEREST-INVEST>                               17,001                   2,831
<INTEREST-OTHER>                                 2,142                   6,957
<INTEREST-TOTAL>                               152,151                 149,072
<INTEREST-DEPOSIT>                              52,699                  44,652
<INTEREST-EXPENSE>                              89,670                 100,767
<INTEREST-INCOME-NET>                           62,481                  48,305
<LOAN-LOSSES>                                    9,650                   6,142
<SECURITIES-GAINS>                                   0                       0
<EXPENSE-OTHER>                                 84,319                  79,117
<INCOME-PRETAX>                                 84,990                 118,785
<INCOME-PRE-EXTRAORDINARY>                      39,694                  61,090
<EXTRAORDINARY>                                (3,995)                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                    35,699                  61,090
<EPS-PRIMARY>                                      .93                    1.72
<EPS-DILUTED>                                      .87                    1.60
<YIELD-ACTUAL>                                       0                       0
<LOANS-NON>                                     65,006                  46,585
<LOANS-PAST>                                         0                       0
<LOANS-TROUBLED>                                     0                       0
<LOANS-PROBLEM>                                      0                       0
<ALLOWANCE-OPEN>                                44,061                  13,729
<CHARGE-OFFS>                                   16,016                   5,523
<RECOVERIES>                                       654                     113
<ALLOWANCE-CLOSE>                               28,699                  14,461
<ALLOWANCE-DOMESTIC>                            28,699                  14,461
<ALLOWANCE-FOREIGN>                                  0                       0
<ALLOWANCE-UNALLOCATED>                              0                       0<F1>
<FN>
<F1>RESTATED SEPTEMBER 30, 1997 AND 1996 FINANCIAL DATA SCHEDULES PER FAS 128
</FN>
        

</TABLE>