<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 9
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM UNAUDITED
RESTATED INTERIM FINANCIAL STATEMENTS AS OF AND FOR SIX MONTHS ENDED DECEMBER
31, 1996 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL
STATEMENTS.
</LEGEND>
<RESTATED> 
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JUN-30-1997
<PERIOD-START>                             JUL-01-1996
<PERIOD-END>                               DEC-31-1996
<CASH>                                         122,835
<INT-BEARING-DEPOSITS>                               0
<FED-FUNDS-SOLD>                                15,168
<TRADING-ASSETS>                                     0
<INVESTMENTS-HELD-FOR-SALE>                    452,202
<INVESTMENTS-CARRYING>                       1,671,710
<INVESTMENTS-MARKET>                         1,654,509
<LOANS>                                      6,966,702
<ALLOWANCE>                                     61,387
<TOTAL-ASSETS>                               9,727,446
<DEPOSITS>                                   6,556,353
<SHORT-TERM>                                 1,194,863
<LIABILITIES-OTHER>                            155,261
<LONG-TERM>                                  1,067,299
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           389
<OTHER-SE>                                     753,281
<TOTAL-LIABILITIES-AND-EQUITY>               9,727,446
<INTEREST-LOAN>                                277,816
<INTEREST-INVEST>                               73,715
<INTEREST-OTHER>                                     0
<INTEREST-TOTAL>                               351,531
<INTEREST-DEPOSIT>                             157,561
<INTEREST-EXPENSE>                             225,255
<INTEREST-INCOME-NET>                          126,276
<LOAN-LOSSES>                                    5,974
<SECURITIES-GAINS>                                  88
<EXPENSE-OTHER>                                122,877
<INCOME-PRETAX>                                 42,512
<INCOME-PRE-EXTRAORDINARY>                      24,281
<EXTRAORDINARY>                                  (583)
<CHANGES>                                            0
<NET-INCOME>                                    23,698
<EPS-PRIMARY>                                      .40
<EPS-DILUTED>                                      .40
<YIELD-ACTUAL>                                    2.71
<LOANS-NON>                                     46,227
<LOANS-PAST>                                       278
<LOANS-TROUBLED>                                12,749
<LOANS-PROBLEM>                                      0
<ALLOWANCE-OPEN>                                59,577
<CHARGE-OFFS>                                    5,796
<RECOVERIES>                                       965
<ALLOWANCE-CLOSE>                               61,387
<ALLOWANCE-DOMESTIC>                            11,733
<ALLOWANCE-FOREIGN>                                  0
<ALLOWANCE-UNALLOCATED>                         49,654
        

</TABLE>