<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 9
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM UNAUDITED
RESTATED FINANCIAL STATEMENTS FOR THE FISCAL YEAR ENDED JUNE 30, 1997 AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<RESTATED> 
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          JUN-30-1997
<PERIOD-START>                             JUL-01-1996
<PERIOD-END>                               JUN-30-1997
<CASH>                                         158,438
<INT-BEARING-DEPOSITS>                               0
<FED-FUNDS-SOLD>                                18,965
<TRADING-ASSETS>                                     0
<INVESTMENTS-HELD-FOR-SALE>                    359,298
<INVESTMENTS-CARRYING>                       1,670,668
<INVESTMENTS-MARKET>                         1,663,331
<LOANS>                                      7,360,481
<ALLOWANCE>                                     60,929
<TOTAL-ASSETS>                              10,040,596
<DEPOSITS>                                   6,589,395
<SHORT-TERM>                                 1,430,454
<LIABILITIES-OTHER>                            166,686
<LONG-TERM>                                  1,089,995
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           460
<OTHER-SE>                                     763,606
<TOTAL-LIABILITIES-AND-EQUITY>              10,040,596
<INTEREST-LOAN>                                565,428
<INTEREST-INVEST>                              146,804
<INTEREST-OTHER>                                     0
<INTEREST-TOTAL>                               712,232
<INTEREST-DEPOSIT>                             315,603
<INTEREST-EXPENSE>                             453,969
<INTEREST-INCOME-NET>                          258,263
<LOAN-LOSSES>                                   13,427
<SECURITIES-GAINS>                                 510
<EXPENSE-OTHER>                                224,648
<INCOME-PRETAX>                                106,819
<INCOME-PRE-EXTRAORDINARY>                      68,839
<EXTRAORDINARY>                                  (583)
<CHANGES>                                            0
<NET-INCOME>                                    68,256
<EPS-PRIMARY>                                     1.17
<EPS-DILUTED>                                     1.16
<YIELD-ACTUAL>                                    2.71
<LOANS-NON>                                     43,627
<LOANS-PAST>                                       894
<LOANS-TROUBLED>                                10,615
<LOANS-PROBLEM>                                      0
<ALLOWANCE-OPEN>                                59,577
<CHARGE-OFFS>                                    3,091
<RECOVERIES>                                    12,427
<ALLOWANCE-CLOSE>                               60,929
<ALLOWANCE-DOMESTIC>                            10,809
<ALLOWANCE-FOREIGN>                                  0
<ALLOWANCE-UNALLOCATED>                         50,120
        

</TABLE>