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SIGNATURE JOHN H. COSTELLO
TITLE ASSISTANT TREASURER
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<NAME> Fidelity Massachusetts Municipal Trust
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(66)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
2,412
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
3,549
<AVERAGE-NET-ASSETS>
1,255,817
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.015
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
.015
<PER-SHARE-DISTRIBUTIONS>
0
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
57
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000357057
<NAME> Fidelity Massachusetts Municipal Trust
<SERIES>
<NUMBER> 21
<NAME> Spartan Massachusetts Municipal Income Fund
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-MOS
<FISCAL-YEAR-END>
JAN-31-1999
<PERIOD-END>
JUL-31-1998
<INVESTMENTS-AT-COST>
1,203,045
<INVESTMENTS-AT-VALUE>
1,276,848
<RECEIVABLES>
15,933
<ASSETS-OTHER>
55
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
1,292,836
<PAYABLE-FOR-SECURITIES>
0
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
3,719
<TOTAL-LIABILITIES>
3,719
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
1,222,226
<SHARES-COMMON-STOCK>
108,746
<SHARES-COMMON-PRIOR>
102,968
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0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(6,888)
<OVERDISTRIBUTION-GAINS>
0
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73,779
<NET-ASSETS>
1,289,117
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
33,558
<OTHER-INCOME>
0
<EXPENSES-NET>
3,211
<NET-INVESTMENT-INCOME>
30,347
<REALIZED-GAINS-CURRENT>
2,109
<APPREC-INCREASE-CURRENT>
(13,822)
<NET-CHANGE-FROM-OPS>
18,634
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
30,347
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
16,125
<NUMBER-OF-SHARES-REDEEMED>
12,351
<SHARES-REINVESTED>
2,004
<NET-CHANGE-IN-ASSETS>
56,966
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(8,964)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
2,404
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
3,232
<AVERAGE-NET-ASSETS>
1,251,610
<PER-SHARE-NAV-BEGIN>
11.970
<PER-SHARE-NII>
.288
<PER-SHARE-GAIN-APPREC>
(.120)
<PER-SHARE-DIVIDEND>
.288
<PER-SHARE-DISTRIBUTIONS>
0
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
11.850
<EXPENSE-RATIO>
52
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000357057
<NAME> Fidelity Massachusetts Municipal Trust
<SERIES>
<NUMBER> 31
<NAME> Spartan Massachusetts Municipal Money Market Fund
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-MOS
<FISCAL-YEAR-END>
JAN-31-1999
<PERIOD-END>
JUL-31-1998
<INVESTMENTS-AT-COST>
840,179
<INVESTMENTS-AT-VALUE>
840,179
<RECEIVABLES>
12,380
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26
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0
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852,585
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6,918
<SENIOR-LONG-TERM-DEBT>
0
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1,865
<TOTAL-LIABILITIES>
8,783
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0
<PAID-IN-CAPITAL-COMMON>
843,857
<SHARES-COMMON-STOCK>
843,854
<SHARES-COMMON-PRIOR>
744,913
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(55)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
843,802
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0
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13,810
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0
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1,899
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11,911
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1
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0
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11,912
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0
<DISTRIBUTIONS-OF-INCOME>
11,911
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
545,803
<NUMBER-OF-SHARES-REDEEMED>
458,641
<SHARES-REINVESTED>
11,779
<NET-CHANGE-IN-ASSETS>
98,942
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(56)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
1,944
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
1,945
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784,469
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1.000
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.015
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0
<PER-SHARE-DIVIDEND>
.015
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0
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0
<PER-SHARE-NAV-END>
1.000
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50
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
