<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> 031
   <NAME> NUVEEN FLAGSHIP LOUISIANA MUNICIPAL BOND FUND - CLASS A
<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>                           119731
<INVESTMENTS-AT-VALUE>                          115262
<RECEIVABLES>                                     2179
<ASSETS-OTHER>                                     972
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                  118413
<PAYABLE-FOR-SECURITIES>                          3137
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          453
<TOTAL-LIABILITIES>                               3590
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        121497
<SHARES-COMMON-STOCK>                             7556
<SHARES-COMMON-PRIOR>                             8717
<ACCUMULATED-NII-CURRENT>                         (44)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                         (2161)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                        (4469)
<NET-ASSETS>                                    114823
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                 7866
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                    1504
<NET-INVESTMENT-INCOME>                           6362
<REALIZED-GAINS-CURRENT>                        (2160)
<APPREC-INCREASE-CURRENT>                      (11522)
<NET-CHANGE-FROM-OPS>                           (7320)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                         4505
<DISTRIBUTIONS-OF-GAINS>                            28
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                            786
<NUMBER-OF-SHARES-REDEEMED>                       2101
<SHARES-REINVESTED>                                154
<NET-CHANGE-IN-ASSETS>                           27026
<ACCUMULATED-NII-PRIOR>                              2
<ACCUMULATED-GAINS-PRIOR>                           40
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              705
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                   1532
<AVERAGE-NET-ASSETS>                             86701
<PER-SHARE-NAV-BEGIN>                            11.38
<PER-SHARE-NII>                                    .55
<PER-SHARE-GAIN-APPREC>                         (1.11)
<PER-SHARE-DIVIDEND>                             (.55)
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.27
<EXPENSE-RATIO>                                    .97


</TABLE>