<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
THE WELLS FARGO FUNDS ANNUAL REPORT DATED MARCH 31, 2000
AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH REPORT.
</LEGEND>
<SERIES>
<NUMBER> 243
<NAME> NATIONAL TAX-FREE INSTITUTIONAL MM FUND - INST SHARES
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> MAR-31-2000
<PERIOD-START> NOV-08-1999
<PERIOD-END> MAR-31-2000
<INVESTMENTS-AT-COST> 1121490559
<INVESTMENTS-AT-VALUE> 1121490559
<RECEIVABLES> 37108058
<ASSETS-OTHER> 201424
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 1158800041
<PAYABLE-FOR-SECURITIES> 8000000
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 3585462
<TOTAL-LIABILITIES> 11585462
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 1147262224
<SHARES-COMMON-STOCK> 23141486
<SHARES-COMMON-PRIOR> 0
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 47645
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<NET-ASSETS> 1147214579
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 16704384
<OTHER-INCOME> 0
<EXPENSES-NET> 2006165
<NET-INVESTMENT-INCOME> 14698219
<REALIZED-GAINS-CURRENT> (47645)
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 14650574
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 15184183
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 385671595
<NUMBER-OF-SHARES-REDEEMED> 362606896
<SHARES-REINVESTED> 23141486
<NET-CHANGE-IN-ASSETS> (90485720)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 122523
<OVERDISTRIB-NII-PRIOR> 126904
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 448732
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<GROSS-EXPENSE> 2539667
<AVERAGE-NET-ASSETS> 1093512166
<PER-SHARE-NAV-BEGIN> 1
<PER-SHARE-NII> 0.01
<PER-SHARE-GAIN-APPREC> 0
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<PER-SHARE-DISTRIBUTIONS> (0.01)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 1
<EXPENSE-RATIO> 0.30
</TABLE>
