<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000201670
<NAME> DELAWARE GROUP STATE TAX FREE INCOME TRUST
<SERIES>
<NUMBER> 021
<NAME> DELAWARE TAX FREE NEW JERSEY FUND A CLASS
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> FEB-29-2000
<PERIOD-END> AUG-31-2000
<INVESTMENTS-AT-COST> 4,133,789
<INVESTMENTS-AT-VALUE> 3,992,316
<RECEIVABLES> 142,858
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 4,135,174
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 70,969
<TOTAL-LIABILITIES> 70,969
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 4,293,342
<SHARES-COMMON-STOCK> 355,424
<SHARES-COMMON-PRIOR> 345,621
<ACCUMULATED-NII-CURRENT> (87,664)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (141,473)
<NET-ASSETS> 1,912,155
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 114,716
<OTHER-INCOME> 0
<EXPENSES-NET> 18,861
<NET-INVESTMENT-INCOME> 95,855
<REALIZED-GAINS-CURRENT> (51,068)
<APPREC-INCREASE-CURRENT> 292,602
<NET-CHANGE-FROM-OPS> 337,389
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 46,325
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 182,617
<NUMBER-OF-SHARES-REDEEMED> 164,578
<SHARES-REINVESTED> 37,813
<NET-CHANGE-IN-ASSETS> 122,349
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (36,596)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 11,317
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 32,471
<AVERAGE-NET-ASSETS> 1,815,541
<PER-SHARE-NAV-BEGIN> 5.060
<PER-SHARE-NII> 0.133
<PER-SHARE-GAIN-APPREC> 0.320
<PER-SHARE-DIVIDEND> 0.133
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 5.380
<EXPENSE-RATIO> 0.500
</TABLE>
