<TABLE> <S> <C>

<PAGE>
<ARTICLE> 9
<LEGEND>
This Schedule contains summary financial information extracted from
Dime Bancorp. Inc.'s Form 10-Q for the Quarterly Period Ended
September 30, 1996 and is qualified in its entirety by reference to such
financial statements.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1996
<PERIOD-END>                               SEP-30-1996
<CASH>                                         147,811
<INT-BEARING-DEPOSITS>                           8,061
<FED-FUNDS-SOLD>                               200,859
<TRADING-ASSETS>                                     0
<INVESTMENTS-HELD-FOR-SALE>                  3,303,341
<INVESTMENTS-CARRYING>                       4,524,258
<INVESTMENTS-MARKET>                         4,414,313
<LOANS>                                     10,640,656
<ALLOWANCE>                                    116,219
<TOTAL-ASSETS>                              19,683,465
<DEPOSITS>                                  12,734,288
<SHORT-TERM>                                 4,821,823
<LIABILITIES-OTHER>                            172,605
<LONG-TERM>                                    933,103
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                         1,083
<OTHER-SE>                                   1,020,563
<TOTAL-LIABILITIES-AND-EQUITY>              19,683,465
<INTEREST-LOAN>                                581,143
<INTEREST-INVEST>                              412,284
<INTEREST-OTHER>                                18,467
<INTEREST-TOTAL>                             1,011,894
<INTEREST-DEPOSIT>                             396,454
<INTEREST-EXPENSE>                             668,762
<INTEREST-INCOME-NET>                          343,132
<LOAN-LOSSES>                                   31,000
<SECURITIES-GAINS>                            (12,179)
<EXPENSE-OTHER>                                262,789
<INCOME-PRETAX>                                105,198
<INCOME-PRE-EXTRAORDINARY>                     105,198
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    72,938
<EPS-PRIMARY>                                     0.67
<EPS-DILUTED>                                     0.67
<YIELD-ACTUAL>                                    2.40
<LOANS-NON>                                    227,255
<LOANS-PAST>                                         0
<LOANS-TROUBLED>                               201,871
<LOANS-PROBLEM>                                      0
<ALLOWANCE-OPEN>                               128,295
<CHARGE-OFFS>                                   49,789
<RECOVERIES>                                     6,713
<ALLOWANCE-CLOSE>                              116,219
<ALLOWANCE-DOMESTIC>                           116,219
<ALLOWANCE-FOREIGN>                                  0
<ALLOWANCE-UNALLOCATED>                              0
        

</TABLE>