[ARTICLE] 6
[CIK] 0000080991
[NAME] PAINEWEBBER MUNICIPAL SERIES
[SERIES]
[NUMBER] 2
[NAME] NEW YORK TAX FREE INCOME FUND- CLASS Y
[MULTIPLIER] 1,000
<TABLE>
<S> <C>
[PERIOD-TYPE] 6-MOS
[FISCAL-YEAR-END] FEB-28-2001
[PERIOD-START] MAR-01-2000
[PERIOD-END] AUG-31-2000
[INVESTMENTS-AT-COST] 98
[INVESTMENTS-AT-VALUE] 100
[RECEIVABLES] 1
[ASSETS-OTHER] 0
[OTHER-ITEMS-ASSETS] 0
[TOTAL-ASSETS] 101
[PAYABLE-FOR-SECURITIES] 0
[SENIOR-LONG-TERM-DEBT] 0
[OTHER-ITEMS-LIABILITIES] 1
[TOTAL-LIABILITIES] 1
[SENIOR-EQUITY] 0
[PAID-IN-CAPITAL-COMMON] 100
[SHARES-COMMON-STOCK] 10
[SHARES-COMMON-PRIOR] 7
[ACCUMULATED-NII-CURRENT] 0
[OVERDISTRIBUTION-NII] 0
[ACCUMULATED-NET-GAINS] 0
[OVERDISTRIBUTION-GAINS] 1
[ACCUM-APPREC-OR-DEPREC] 1
[NET-ASSETS] 100
[DIVIDEND-INCOME] 0
[INTEREST-INCOME] 3
[OTHER-INCOME] 0
[EXPENSES-NET] 1
[NET-INVESTMENT-INCOME] 2
[REALIZED-GAINS-CURRENT] (1)
[APPREC-INCREASE-CURRENT] 5
[NET-CHANGE-FROM-OPS] 6
[EQUALIZATION] 0
[DISTRIBUTIONS-OF-INCOME] 2
[DISTRIBUTIONS-OF-GAINS] 0
[DISTRIBUTIONS-OTHER] 0
[NUMBER-OF-SHARES-SOLD] 3
[NUMBER-OF-SHARES-REDEEMED] 0
[SHARES-REINVESTED] 0
[NET-CHANGE-IN-ASSETS] 0
[ACCUMULATED-NII-PRIOR] 0
[ACCUMULATED-GAINS-PRIOR] 0
[OVERDISTRIB-NII-PRIOR] 0
[OVERDIST-NET-GAINS-PRIOR] 0
[GROSS-ADVISORY-FEES] 0
[INTEREST-EXPENSE] 0
[GROSS-EXPENSE] 1
[AVERAGE-NET-ASSETS] 84
[PER-SHARE-NAV-BEGIN] 9.99
[PER-SHARE-NII] 0.25
[PER-SHARE-GAIN-APPREC] 0.43
[PER-SHARE-DIVIDEND] 0.25
[PER-SHARE-DISTRIBUTIONS] 0
[RETURNS-OF-CAPITAL] 0
[PER-SHARE-NAV-END] 10.42
[EXPENSE-RATIO] 0.77
</TABLE>
