<TABLE> <S> <C>

<ARTICLE> 6
<LEGEND>
This schedule contains Summary Financial Information extracted from the Form
N-SAR and the financial statements and is qualified in its entirety by
references to such documents.
</LEGEND>
<SERIES>
   <NUMBER> 012
   <NAME> NUVEEN FLAGSHIP KANSAS MUNICIPAL BOND FUND - CLASS B
<MULTIPLIER> 1000

<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          MAY-31-2000
<PERIOD-START>                             JUN-01-1999
<PERIOD-END>                               MAY-31-2000
<INVESTMENTS-AT-COST>                           104756
<INVESTMENTS-AT-VALUE>                          101289
<RECEIVABLES>                                     1745
<ASSETS-OTHER>                                    3041
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                  106075
<PAYABLE-FOR-SECURITIES>                          6779
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          482
<TOTAL-LIABILITIES>                               7261
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        108329
<SHARES-COMMON-STOCK>                              565
<SHARES-COMMON-PRIOR>                              623
<ACCUMULATED-NII-CURRENT>                           48
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                         (6096)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                        (3467)
<NET-ASSETS>                                     98814
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                 6987
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                    1232
<NET-INVESTMENT-INCOME>                           5755
<REALIZED-GAINS-CURRENT>                        (1857)
<APPREC-INCREASE-CURRENT>                       (9892)
<NET-CHANGE-FROM-OPS>                           (5994)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                          260
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                             80
<NUMBER-OF-SHARES-REDEEMED>                        149
<SHARES-REINVESTED>                                 12
<NET-CHANGE-IN-ASSETS>                         (27672)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                       (4239)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              633
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                   1247
<AVERAGE-NET-ASSETS>                              6106
<PER-SHARE-NAV-BEGIN>                            10.43
<PER-SHARE-NII>                                    .42
<PER-SHARE-GAIN-APPREC>                          (.95)
<PER-SHARE-DIVIDEND>                             (.42)
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               9.48
<EXPENSE-RATIO>                                   1.76


</TABLE>