<TABLE> <S> <C>

<PAGE>
<ARTICLE> 9
<LEGEND>
This schedule contains summary financial information extracted from the First
Federal Financial Bancorp, Inc. and subsidiary consolidated balance sheet as of
September 30, 1999 and the consolidated statement of income for the year ended
September 30, 1999 and is qualified in its entirety by reference to such
financial statements.
</LEGEND>

<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          SEP-30-1999
<PERIOD-START>                             OCT-01-1998
<PERIOD-END>                               SEP-30-1997
<CASH>                                         377,221
<INT-BEARING-DEPOSITS>                         563,530
<FED-FUNDS-SOLD>                                     0
<TRADING-ASSETS>                                     0
<INVESTMENTS-HELD-FOR-SALE>                  5,493,861
<INVESTMENTS-CARRYING>                       6,760,561
<INVESTMENTS-MARKET>                         6,673,001
<LOANS>                                     49,995,508
<ALLOWANCE>                                    292,500
<TOTAL-ASSETS>                              65,135,748
<DEPOSITS>                                  47,743,450
<SHORT-TERM>                                 2,475,000
<LIABILITIES-OTHER>                            263,344
<LONG-TERM>                                  5,370,869
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                         5,516
<OTHER-SE>                                   9,277,569
<TOTAL-LIABILITIES-AND-EQUITY>              65,135,748
<INTEREST-LOAN>                              3,583,072
<INTEREST-INVEST>                              746,482
<INTEREST-OTHER>                                48,587
<INTEREST-TOTAL>                             4,378,141
<INTEREST-DEPOSIT>                           2,294,611
<INTEREST-EXPENSE>                           2,663,348
<INTEREST-INCOME-NET>                        1,714,793
<LOAN-LOSSES>                                   16,500
<SECURITIES-GAINS>                                   0
<EXPENSE-OTHER>                              1,454,739
<INCOME-PRETAX>                                344,220
<INCOME-PRE-EXTRAORDINARY>                     239,626
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   239,626
<EPS-BASIC>                                        .45
<EPS-DILUTED>                                      .45
<YIELD-ACTUAL>                                    2.75
<LOANS-NON>                                    153,000
<LOANS-PAST>                                    21,000
<LOANS-TROUBLED>                                     0
<LOANS-PROBLEM>                                      0
<ALLOWANCE-OPEN>                               288,350
<CHARGE-OFFS>                                   12,496
<RECOVERIES>                                       146
<ALLOWANCE-CLOSE>                              292,500
<ALLOWANCE-DOMESTIC>                           292,500
<ALLOWANCE-FOREIGN>                                  0
<ALLOWANCE-UNALLOCATED>                              0


</TABLE>