<TABLE> <S> <C>

<PAGE>
<ARTICLE> 9
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEETS OF CENTRAL BANCORPORATION, INC. AND SUBSIDIARIES AS
OF SEPT 30, 1995 (UNAUDITED) AND DECEMBER 31, 1994, AND THE RELATED CONSOLIDATED
STATEMENTS OF EARNINGS FOR THE THREE MONTHS AND NINE MONTHS ENDED SEPT 30, 1995
AND 1994 (UNAUDITED) AND CONSOLIDATED STATEMENTS OF CASH FLOWS FOR THE NINE
MONTHS ENDED SEPT 30, 1995 AND 1994 (UNAUDITED) AND IS QUALIFIED IN ITS ENTIRETY
BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1995
<PERIOD-START>                             JAN-01-1995
<PERIOD-END>                               SEP-30-1995
<CASH>                                      47,220,589
<INT-BEARING-DEPOSITS>                         176,362
<FED-FUNDS-SOLD>                            12,000,000
<TRADING-ASSETS>                                     0
<INVESTMENTS-HELD-FOR-SALE>                144,777,000
<INVESTMENTS-CARRYING>                     353,273,000
<INVESTMENTS-MARKET>                       352,954,000
<LOANS>                                    318,527,159
<ALLOWANCE>                                  4,419,572
<TOTAL-ASSETS>                             907,810,138
<DEPOSITS>                                 802,005,866
<SHORT-TERM>                                30,329,126
<LIABILITIES-OTHER>                          8,699,056
<LONG-TERM>                                  2,000,000
<COMMON>                                     6,541,808
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<OTHER-SE>                                  58,234,282
<TOTAL-LIABILITIES-AND-EQUITY>             907,810,138
<INTEREST-LOAN>                             20,086,958
<INTEREST-INVEST>                           23,393,833
<INTEREST-OTHER>                               900,465
<INTEREST-TOTAL>                            44,381,256
<INTEREST-DEPOSIT>                          17,913,995
<INTEREST-EXPENSE>                          20,703,946
<INTEREST-INCOME-NET>                       23,677,310
<LOAN-LOSSES>                                  675,000
<SECURITIES-GAINS>                             133,176
<EXPENSE-OTHER>                             21,672,548
<INCOME-PRETAX>                              9,108,314
<INCOME-PRE-EXTRAORDINARY>                   7,022,314
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                 7,022,314
<EPS-PRIMARY>                                     2.68
<EPS-DILUTED>                                     2.68
<YIELD-ACTUAL>                                    4.21
<LOANS-NON>                                  1,642,000
<LOANS-PAST>                                   233,000
<LOANS-TROUBLED>                               228,000
<LOANS-PROBLEM>                                      0
<ALLOWANCE-OPEN>                             3,872,000
<CHARGE-OFFS>                                  788,000
<RECOVERIES>                                   661,000
<ALLOWANCE-CLOSE>                            4,420,000
<ALLOWANCE-DOMESTIC>                         1,207,000
<ALLOWANCE-FOREIGN>                                  0
<ALLOWANCE-UNALLOCATED>                      3,213,000
        

</TABLE>