<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 9
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
BROAD NATIONAL BANCORPORATION'S FORM 10-Q FOR THE QUARTER ENDED JUNE
30, 1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL
STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<CASH>                                          39,114
<INT-BEARING-DEPOSITS>                               0
<FED-FUNDS-SOLD>                                53,775
<TRADING-ASSETS>                                     0
<INVESTMENTS-HELD-FOR-SALE>                     82,767
<INVESTMENTS-CARRYING>                          84,992
<INVESTMENTS-MARKET>                            84,390
<LOANS>                                        307,601
<ALLOWANCE>                                      9,037
<TOTAL-ASSETS>                                 580,271
<DEPOSITS>                                     517,035
<SHORT-TERM>                                     3,506
<LIABILITIES-OTHER>                              8,874
<LONG-TERM>                                     11,500
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                         4,677
<OTHER-SE>                                      34,679
<TOTAL-LIABILITIES-AND-EQUITY>                 580,271
<INTEREST-LOAN>                                 13,030
<INTEREST-INVEST>                                5,221
<INTEREST-OTHER>                                 1,444
<INTEREST-TOTAL>                                19,695
<INTEREST-DEPOSIT>                               7,278
<INTEREST-EXPENSE>                               7,311
<INTEREST-INCOME-NET>                           12,384
<LOAN-LOSSES>                                      900
<SECURITIES-GAINS>                                  57
<EXPENSE-OTHER>                                  9,746
<INCOME-PRETAX>                                  5,414
<INCOME-PRE-EXTRAORDINARY>                       5,414
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     3,320
<EPS-PRIMARY>                                     0.69
<EPS-DILUTED>                                     0.69
<YIELD-ACTUAL>                                    4.87
<LOANS-NON>                                      5,498
<LOANS-PAST>                                     1,044
<LOANS-TROUBLED>                                 3,845
<LOANS-PROBLEM>                                  3,724
<ALLOWANCE-OPEN>                                 8,531
<CHARGE-OFFS>                                      733
<RECOVERIES>                                       339
<ALLOWANCE-CLOSE>                                9,037
<ALLOWANCE-DOMESTIC>                             9,037
<ALLOWANCE-FOREIGN>                                  0
<ALLOWANCE-UNALLOCATED>                          6,422
        

</TABLE>