WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<PAGE>
  
                           FINANCIAL DATA SCHEDULE.
  <ARTICLE>  9
  <CIK>  0000827085
  <NAME>  PINNACLE BANC GROUP, INC.
  <MULTIPLIER>  1000
         
  <S>                         <C>
  <PERIOD-TYPE>               9-MOS
  <FISCAL-YEAR-END>                  DEC-31-1998
  <PERIOD-START>                     JAN-01-1998
  <PERIOD-END>                       SEP-30-1998
  <CASH>                                              24,490
  <INT-BEARING-DEPOSITS>                                 143
  <FED-FUNDS-SOLD>                                       900
  <TRADING-ASSETS>                                         0 
  <INVESTMENTS-HELD-FOR-SALE>                        435,349
  <INVESTMENTS-CARRYING>                                   0
  <INVESTMENTS-MARKET>                               435,349
  <LOANS>                                            524,666
  <ALLOWANCE>                                         (7,193)
  <TOTAL-ASSETS>                                   1,044,375
  <DEPOSITS>                                         870,662
  <SHORT-TERM>                                        22,425
  <LIABILITIES-OTHER>                                 10,754
  <LONG-TERM>                                         21,300
  <PREFERRED-MANDATORY>                                    0
  <PREFERRED>                                              0
  <COMMON>                                            23,461
  <OTHER-SE>                                          95,773
  <TOTAL-LIABILITIES-AND-EQUITY>                   1,044,375
  <INTEREST-LOAN>                                     31,473
  <INTEREST-INVEST>                                   17,990
  <INTEREST-OTHER>                                       208
  <INTEREST-TOTAL>                                    49,671
  <INTEREST-DEPOSIT>                                  24,046
  <INTEREST-EXPENSE>                                  25,619
  <INTEREST-INCOME-NET>                               24,052
  <LOAN-LOSSES>                                            0
  <SECURITIES-GAINS>                                   8,429
  <EXPENSE-OTHER>                                     22,139
  <INCOME-PRETAX>                                     16,992
  <INCOME-PRE-EXTRAORDINARY>                          16,992
  <EXTRAORDINARY>                                          0
  <CHANGES>                                                0
  <NET-INCOME>                                        11,564
  <EPS-PRIMARY>                                         1.54
  <EPS-DILUTED>                                         1.53
  <YIELD-ACTUAL>                                        3.54
  <LOANS-NON>                                          3,858
  <LOANS-PAST>                                         1,773
  <LOANS-TROUBLED>                                     1,148
  <LOANS-PROBLEM>                                      3,734
  <ALLOWANCE-OPEN>                                     7,520
  <CHARGE-OFFS>                                          610
  <RECOVERIES>                                           282
  <ALLOWANCE-CLOSE>                                    7,193
  <ALLOWANCE-DOMESTIC>                                 2,383
  <ALLOWANCE-FOREIGN>                                      0
  <ALLOWANCE-UNALLOCATED>                              4,813
          
  
</TABLE>