<TABLE> <S> <C>

<PAGE>
<ARTICLE> 9
<LEGEND>
THIS SCHEDULES CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE FIRST
FEDERAL FINANCIAL BANCORP, INC. AND SUBSIDIARY CONSOLIDATED BALANCE SHEET AS OF
SEPTEMBER 30, 1998 AND THE CONSOLIDATED STATEMENT OF INCOME FOR THE YEAR THEN
ENDED.
</LEGEND>
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          SEP-30-1998
<PERIOD-START>                             OCT-01-1997
<PERIOD-END>                               OCT-01-1998
<CASH>                                         213,844
<INT-BEARING-DEPOSITS>                         532,417
<FED-FUNDS-SOLD>                                     0
<TRADING-ASSETS>                                     0
<INVESTMENTS-HELD-FOR-SALE>                  6,228,332
<INVESTMENTS-CARRYING>                       8,578,721
<INVESTMENTS-MARKET>                         8,597,546
<LOANS>                                     44,930,991
<ALLOWANCE>                                    288,350
<TOTAL-ASSETS>                              62,395,897
<DEPOSITS>                                  45,436,581
<SHORT-TERM>                                         0
<LIABILITIES-OTHER>                            304,284
<LONG-TERM>                                  7,004,136
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                         5,834
<OTHER-SE>                                   9,645,062
<TOTAL-LIABILITIES-AND-EQUITY>              62,395,897
<INTEREST-LOAN>                              3,189,561
<INTEREST-INVEST>                            1,005,410
<INTEREST-OTHER>                                43,882
<INTEREST-TOTAL>                             4,238,853
<INTEREST-DEPOSIT>                           2,323,467
<INTEREST-EXPENSE>                           2,620,103
<INTEREST-INCOME-NET>                        1,618,750
<LOAN-LOSSES>                                   12,000
<SECURITIES-GAINS>                              22,289
<EXPENSE-OTHER>                              1,421,100
<INCOME-PRETAX>                                331,349
<INCOME-PRE-EXTRAORDINARY>                     331,349
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   252,257
<EPS-PRIMARY>                                      .44
<EPS-DILUTED>                                      .43
<YIELD-ACTUAL>                                    2.72
<LOANS-NON>                                    125,000
<LOANS-PAST>                                         0
<LOANS-TROUBLED>                                     0
<LOANS-PROBLEM>                                      0
<ALLOWANCE-OPEN>                               286,571
<CHARGE-OFFS>                                   10,221
<RECOVERIES>                                         0
<ALLOWANCE-CLOSE>                              288,350
<ALLOWANCE-DOMESTIC>                           288,350
<ALLOWANCE-FOREIGN>                                  0
<ALLOWANCE-UNALLOCATED>                              0
        

</TABLE>