<PAGE> PAGE 1
000 B000000 01/31/99
000 C000000 0000357057
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0.a
000 J000000 A
001 A000000 FIDELITY MASSACHUSETTS MUNICIPAL TRUST
001 B000000 811-3361
001 C000000 6037917486
002 A000000 ONE SPARTAN WAY
002 B000000 MERRIMACK
002 C000000 NH
002 D010000 03054
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 Y
007 B000000 3
007 C010100 1
007 C020100 FIDELITY MASS. MUNICIPAL MONEY MARKET FUND
007 C030100 N
007 C010200 2
007 C020200 SPARTAN MASS. MUNICIPAL INCOME FUND
007 C030200 N
007 C010300 3
007 C020300 SPARTAN MASS. MUNICIPAL MONEY MARKET FUND
007 C030300 N
007 C010400 4
007 C010500 5
007 C010600 6
007 C010700 7
007 C010800 8
007 C010900 9
007 C011000 10
008 A00AA01 FIDELITY MANAGEMENT & RESEARCH COMPANY (FMR)
008 B00AA01 A
008 C00AA01 801-7884
008 D01AA01 BOSTON
008 D02AA01 MA
008 D03AA01 02109
008 A00AA02 FIDELITY INVESTMENTS MONEY MANAGEMENT, INC.
008 B00AA02 S
008 C00AA02 801-34590
008 D01AA02 MERRIMACK
008 D02AA02 NH
008 D03AA02 03054
011 A00AA01 FIDELITY DISTRIBUTORS CORPORATION
<PAGE> PAGE 2
011 B00AA01 8-8775
011 C01AA01 BOSTON
011 C02AA01 MA
011 C03AA01 02109
012 A00AA01 UMB BANK, NA
012 B00AA01 84-0000
012 C01AA01 KANSAS CITY
012 C02AA01 MO
012 C03AA01 64106
012 A00AA02 FIDELITY SERVICE COMPANY, INC.
012 B00AA02 84-00216
012 C01AA02 BOSTON
012 C02AA02 MA
012 C03AA02 02109
013 A00AA01 PRICEWATERHOUSECOOPERS LLP
013 B01AA01 BOSTON
013 B02AA01 MA
013 B03AA01 02109
014 A00AA01 FIDELITY DISTRIBUTORS CORPORATION
014 B00AA01 8-8775
014 A00AA02 FIDELITY BROKERAGE SERVICES, INC. (FBSI)
014 B00AA02 8-23292
014 A00AA03 FIDELITY BROKERAGE SERVICES (JAPAN) LLC
014 B00AA03 8-00000
014 A00AA04 NATIONAL FINANCIAL SERVICES COMPANY
014 B00AA04 8-26740
015 A00AA01 UMB BANK, NA
015 B00AA01 C
015 C01AA01 KANSAS CITY
015 C02AA01 MO
015 C03AA01 64106
015 E01AA01 X
018 00AA00 Y
019 A00AA00 Y
019 B00AA00 235
019 C00AA00 FIDELITYZZ
020 C000001 0
020 C000002 0
020 C000003 0
020 C000004 0
020 C000005 0
020 C000006 0
020 C000007 0
020 C000008 0
020 C000009 0
020 C000010 0
021 000000 0
022 A000001 MERRILL LYNCH & CO., INC.
022 B000001 13-5674085
022 C000001 1452105
022 D000001 178998
<PAGE> PAGE 3
022 A000002 SMITH BARNEY SHEARSON, INC.
022 B000002 13-1912900
022 C000002 912631
022 D000002 717010
022 A000003 GOLDMAN SACHS & COMPANY
022 B000003 13-5108880
022 C000003 1057510
022 D000003 241645
022 A000004 MUNICIPAL CENTRAL CASH FUND
022 B000004 04-3333397
022 C000004 508639
022 D000004 286922
022 A000005 BT ALEX BROWN SECURITIES
022 B000005 13-3311934
022 C000005 340056
022 D000005 440387
022 A000006 BEAR STEARNS & CO.
022 B000006 13-3299429
022 C000006 375240
022 D000006 386764
022 A000007 MORGAN STANLEY & CO, INC.
022 B000007 13-2655998
022 C000007 542300
022 D000007 203000
022 A000008 PAINE WEBBER INC.
022 B000008 13-2638166
022 C000008 413019
022 D000008 287916
022 A000009 FID MASS MUNI MMKT FUND
022 B000009 00-0000000
022 C000009 122250
022 D000009 160325
022 A000010 MORGAN, J.P. SECURITIES
022 B000010 13-3224016
022 C000010 185597
022 D000010 88520
023 C000000 7595806
023 D000000 4000010
026 A000000 Y
026 B000000 Y
026 C000000 N
026 D000000 Y
026 E000000 N
026 F000000 Y
026 G010000 Y
026 G020000 N
026 H000000 Y
027 000000 Y
029 00AA00 N
030 A00AA00 0
030 B00AA00 0.00
<PAGE> PAGE 4
030 C00AA00 0.00
031 A00AA00 0
031 B00AA00 0
032 00AA00 0
033 00AA00 0
034 00AA00 N
035 00AA00 0
036 B00AA00 0
037 00AA00 N
038 00AA00 0
039 00AA00 N
040 00AA00 Y
041 00AA00 N
042 A00AA00 0
042 B00AA00 0
042 C00AA00 0
042 D00AA00 0
042 E00AA00 0
042 F00AA00 0
042 G00AA00 0
042 H00AA00 0
043 00AA00 0
044 00AA00 0
055 A00AA00 N
055 B00AA00 N
056 00AA00 Y
057 00AA00 N
066 A00AA00 N
067 00AA00 N
068 A00AA00 N
068 B00AA00 N
069 00AA00 N
077 A000000 Y
077 B000000 Y
077 C000000 N
077 D000000 N
077 E000000 N
077 F000000 N
077 G000000 N
077 H000000 N
077 I000000 N
077 J000000 N
077 K000000 N
077 L000000 N
077 M000000 N
077 N000000 N
077 O000000 N
077 P000000 N
077 Q010000 N
077 Q020000 N
077 Q030000 N
<PAGE> PAGE 5
078 000000 N
080 A00AA00 AMERICAN INTERNATIONAL SPECIALTY LINES
080 B00AA00 FEDERAL INSURANCE COMPANY
080 C00AA00 220000
081 A00AA00 Y
081 B00AA00 232
082 A00AA00 N
082 B00AA00 0
083 A00AA00 N
083 B00AA00 0
084 A00AA00 N
084 B00AA00 0
085 A00AA00 Y
085 B00AA00 N
086 A010000 0
086 A020000 0
086 B010000 0
086 B020000 0
086 C010000 0
086 C020000 0
086 D010000 0
086 D020000 0
086 E010000 0
086 E020000 0
086 F010000 0
086 F020000 0
024 000100 Y
025 A000101 MUNICIPAL CENTRAL CASH
025 B000101 04-3333397
025 C000101 D
025 D000101 158367
025 D000102 0
025 D000103 0
025 D000104 0
025 D000105 0
025 D000106 0
025 D000107 0
025 D000108 0
028 A010100 322708
028 A020100 3134
028 A030100 0
028 A040100 305782
028 B010100 416267
028 B020100 3163
028 B030100 0
028 B040100 351230
028 C010100 452736
028 C020100 3208
028 C030100 0
028 C040100 370301
028 D010100 345399
<PAGE> PAGE 6
028 D020100 3140
028 D030100 0
028 D040100 299876
028 E010100 496902
028 E020100 3433
028 E030100 0
028 E040100 394348
028 F010100 517817
028 F020100 3389
028 F030100 0
028 F040100 548199
028 G010100 2551829
028 G020100 19467
028 G030100 0
028 G040100 2269736
028 H000100 0
045 000100 Y
046 000100 N
047 000100 N
048 000100 0.000
048 A010100 0
048 A020100 0.000
048 B010100 0
048 B020100 0.000
048 C010100 0
048 C020100 0.000
048 D010100 0
048 D020100 0.000
048 E010100 0
048 E020100 0.000
048 F010100 0
048 F020100 0.000
048 G010100 0
048 G020100 0.000
048 H010100 0
048 H020100 0.000
048 I010100 0
048 I020100 0.000
048 J010100 0
048 J020100 0.000
048 K010100 0
048 K020100 0.000
049 000100 N
050 000100 N
051 000100 N
052 000100 Y
053 A000100 Y
053 B000100 Y
053 C000100 N
054 A000100 Y
054 B000100 Y
<PAGE> PAGE 7
054 C000100 N
054 D000100 N
054 E000100 N
054 F000100 N
054 G000100 Y
054 H000100 Y
054 I000100 N
054 J000100 Y
054 K000100 N
054 L000100 N
054 M000100 Y
054 N000100 N
054 O000100 Y
058 A000100 N
059 000100 Y
060 A000100 N
060 B000100 N
061 000100 5000
062 A000100 Y
062 B000100 0.0
062 C000100 0.0
062 D000100 0.0
062 E000100 90.0
062 F000100 0.0
062 G000100 0.0
062 H000100 0.0
062 I000100 0.0
062 J000100 0.0
062 K000100 0.0
062 L000100 10.0
062 M000100 0.0
062 N000100 0.0
062 O000100 0.0
062 P000100 0.0
062 Q000100 0.0
062 R000100 0.0
063 A000100 42
063 B000100 0.0
064 A000100 Y
064 B000100 N
070 A010100 N
070 A020100 N
070 B010100 N
070 B020100 N
070 C010100 N
070 C020100 N
070 D010100 N
070 D020100 N
070 E010100 N
070 E020100 N
070 F010100 N
<PAGE> PAGE 8
070 F020100 N
070 G010100 N
070 G020100 N
070 H010100 N
070 H020100 N
070 I010100 N
070 I020100 N
070 J010100 Y
070 J020100 Y
070 K010100 Y
070 K020100 Y
070 L010100 N
070 L020100 N
070 M010100 N
070 M020100 N
070 N010100 Y
070 N020100 N
070 O010100 Y
070 O020100 N
070 P010100 Y
070 P020100 Y
070 Q010100 N
070 Q020100 N
070 R010100 N
070 R020100 N
071 A000100 0
071 B000100 0
071 C000100 0
071 D000100 0
072 A000100 12
072 B000100 46345
072 C000100 0
072 D000100 0
072 E000100 0
072 F000100 5186
072 G000100 0
072 H000100 0
072 I000100 2007
072 J000100 69
072 K000100 0
072 L000100 0
072 M000100 2
072 N000100 132
072 O000100 0
072 P000100 0
072 Q000100 173
072 R000100 47
072 S000100 11
072 T000100 0
072 U000100 0
072 V000100 0
<PAGE> PAGE 9
072 W000100 10
072 X000100 7637
072 Y000100 8
072 Z000100 38716
072AA000100 27
072BB000100 0
072CC010100 0
072CC020100 0
072DD010100 38716
072DD020100 0
072EE000100 0
073 A010100 0.0287
073 A020100 0.0000
073 B000100 0.0000
073 C000100 0.0000
074 A000100 0
074 B000100 0
074 C000100 1577258
074 D000100 0
074 E000100 0
074 F000100 0
074 G000100 0
074 H000100 0
074 I000100 0
074 J000100 0
074 K000100 0
074 L000100 34704
074 M000100 59
074 N000100 1612021
074 O000100 14542
074 P000100 512
074 Q000100 0
074 R010100 0
074 R020100 0
074 R030100 0
074 R040100 11827
074 S000100 0
074 T000100 1585140
074 U010100 1585090
074 U020100 0
074 V010100 1.00
074 V020100 0.00
074 W000100 1.0000
074 X000100 37395
074 Y000100 0
075 A000100 1351848
075 B000100 0
076 000100 0.00
024 000200 N
028 A010200 41681
028 A020200 3853
<PAGE> PAGE 10
028 A030200 0
028 A040200 22985
028 B010200 33250
028 B020200 3782
028 B030200 0
028 B040200 24885
028 C010200 38609
028 C020200 3917
028 C030200 0
028 C040200 31183
028 D010200 32157
028 D020200 3814
028 D030200 0
028 D040200 17545
028 E010200 32363
028 E020200 6664
028 E030200 0
028 E040200 31021
028 F010200 41847
028 F020200 4076
028 F030200 0
028 F040200 33389
028 G010200 219907
028 G020200 26106
028 G030200 0
028 G040200 161008
028 H000200 0
045 000200 Y
046 000200 N
047 000200 N
048 000200 0.000
048 A010200 0
048 A020200 0.000
048 B010200 0
048 B020200 0.000
048 C010200 0
048 C020200 0.000
048 D010200 0
048 D020200 0.000
048 E010200 0
048 E020200 0.000
048 F010200 0
048 F020200 0.000
048 G010200 0
048 G020200 0.000
048 H010200 0
048 H020200 0.000
048 I010200 0
048 I020200 0.000
048 J010200 0
048 J020200 0.000
<PAGE> PAGE 11
048 K010200 0
048 K020200 0.000
049 000200 N
050 000200 N
051 000200 N
052 000200 Y
053 A000200 Y
053 B000200 Y
053 C000200 N
054 A000200 Y
054 B000200 Y
054 C000200 N
054 D000200 N
054 E000200 N
054 F000200 N
054 G000200 Y
054 H000200 Y
054 I000200 N
054 J000200 Y
054 K000200 N
054 L000200 N
054 M000200 Y
054 N000200 N
054 O000200 Y
058 A000200 N
059 000200 Y
060 A000200 N
060 B000200 N
061 000200 10000
062 A000200 Y
062 B000200 0.0
062 C000200 0.0
062 D000200 0.0
062 E000200 1.8
062 F000200 0.0
062 G000200 0.0
062 H000200 0.0
062 I000200 0.0
062 J000200 0.0
062 K000200 0.0
062 L000200 0.0
062 M000200 0.0
062 N000200 0.0
062 O000200 98.2
062 P000200 0.0
062 Q000200 0.0
062 R000200 0.0
063 A000200 0
063 B000200 13.7
064 A000200 Y
064 B000200 N
<PAGE> PAGE 12
070 A010200 N
070 A020200 N
070 B010200 N
070 B020200 N
070 C010200 Y
070 C020200 N
070 D010200 N
070 D020200 N
070 E010200 Y
070 E020200 N
070 F010200 N
070 F020200 N
070 G010200 Y
070 G020200 N
070 H010200 N
070 H020200 N
070 I010200 N
070 I020200 N
070 J010200 Y
070 J020200 N
070 K010200 Y
070 K020200 N
070 L010200 N
070 L020200 N
070 M010200 N
070 M020200 N
070 N010200 Y
070 N020200 N
070 O010200 Y
070 O020200 N
070 P010200 Y
070 P020200 Y
070 Q010200 N
070 Q020200 N
070 R010200 N
070 R020200 N
071 A000200 313987
071 B000200 157458
071 C000200 1260923
071 D000200 12
072 A000200 12
072 B000200 68929
072 C000200 0
072 D000200 0
072 E000200 0
072 F000200 4987
072 G000200 0
072 H000200 0
072 I000200 1135
072 J000200 70
072 K000200 0
<PAGE> PAGE 13
072 L000200 0
072 M000200 4
072 N000200 18
072 O000200 0
072 P000200 0
072 Q000200 375
072 R000200 34
072 S000200 14
072 T000200 0
072 U000200 0
072 V000200 0
072 W000200 3
072 X000200 6640
072 Y000200 37
072 Z000200 62326
072AA000200 6548
072BB000200 0
072CC010200 5777
072CC020200 0
072DD010200 62326
072DD020200 0
072EE000200 3424
073 A010200 0.5705
073 A020200 0.0000
073 B000200 0.0300
073 C000200 0.0000
074 A000200 0
074 B000200 0
074 C000200 25550
074 D000200 1361420
074 E000200 0
074 F000200 0
074 G000200 0
074 H000200 0
074 I000200 0
074 J000200 0
074 K000200 0
074 L000200 17566
074 M000200 0
074 N000200 1404536
074 O000200 6150
074 P000200 437
074 Q000200 0
074 R010200 0
074 R020200 0
074 R030200 0
074 R040200 3214
074 S000200 0
074 T000200 1394735
074 U010200 115850
074 U020200 0
<PAGE> PAGE 14
074 V010200 12.04
074 V020200 0.00
074 W000200 0.0000
074 X000200 19652
074 Y000200 0
075 A000200 0
075 B000200 1299565
076 000200 0.00
024 000300 Y
025 A000301 MUNICIPAL CENTRAL CASH
025 B000301 04-3333397
025 C000301 D
025 D000301 63349
025 D000302 0
025 D000303 0
025 D000304 0
025 D000305 0
025 D000306 0
025 D000307 0
025 D000308 0
028 A010300 99549
028 A020300 2016
028 A030300 0
028 A040300 79311
028 B010300 76093
028 B020300 1984
028 B030300 0
028 B040300 71381
028 C010300 96666
028 C020300 2038
028 C030300 0
028 C040300 80742
028 D010300 65942
028 D020300 1910
028 D030300 0
028 D040300 57319
028 E010300 68822
028 E020300 1981
028 E030300 0
028 E040300 90737
028 F010300 121344
028 F020300 1896
028 F030300 0
028 F040300 99338
028 G010300 528416
028 G020300 11825
028 G030300 0
028 G040300 478828
028 H000300 0
045 000300 Y
046 000300 N
<PAGE> PAGE 15
047 000300 Y
048 000300 0.500
048 A010300 0
048 A020300 0.000
048 B010300 0
048 B020300 0.000
048 C010300 0
048 C020300 0.000
048 D010300 0
048 D020300 0.000
048 E010300 0
048 E020300 0.000
048 F010300 0
048 F020300 0.000
048 G010300 0
048 G020300 0.000
048 H010300 0
048 H020300 0.000
048 I010300 0
048 I020300 0.000
048 J010300 0
048 J020300 0.000
048 K010300 0
048 K020300 0.000
049 000300 N
050 000300 N
051 000300 N
052 000300 N
053 A000300 Y
053 B000300 Y
053 C000300 N
054 A000300 Y
054 B000300 Y
054 C000300 Y
054 D000300 Y
054 E000300 Y
054 F000300 Y
054 G000300 Y
054 H000300 Y
054 I000300 N
054 J000300 Y
054 K000300 Y
054 L000300 Y
054 M000300 Y
054 N000300 Y
054 O000300 Y
058 A000300 N
059 000300 Y
060 A000300 N
060 B000300 N
061 000300 25000
<PAGE> PAGE 16
062 A000300 Y
062 B000300 0.0
062 C000300 0.0
062 D000300 0.0
062 E000300 93.0
062 F000300 0.0
062 G000300 0.0
062 H000300 0.0
062 I000300 0.0
062 J000300 0.0
062 K000300 0.0
062 L000300 7.0
062 M000300 0.0
062 N000300 0.0
062 O000300 0.0
062 P000300 0.0
062 Q000300 0.0
062 R000300 0.0
063 A000300 43
063 B000300 0.0
064 A000300 Y
064 B000300 N
070 A010300 N
070 A020300 N
070 B010300 N
070 B020300 N
070 C010300 N
070 C020300 N
070 D010300 N
070 D020300 N
070 E010300 N
070 E020300 N
070 F010300 N
070 F020300 N
070 G010300 N
070 G020300 N
070 H010300 N
070 H020300 N
070 I010300 N
070 I020300 N
070 J010300 Y
070 J020300 Y
070 K010300 Y
070 K020300 Y
070 L010300 N
070 L020300 N
070 M010300 N
070 M020300 N
070 N010300 Y
070 N020300 N
070 O010300 Y
<PAGE> PAGE 17
070 O020300 N
070 P010300 Y
070 P020300 Y
070 Q010300 N
070 Q020300 N
070 R010300 N
070 R020300 N
071 A000300 0
071 B000300 0
071 C000300 0
071 D000300 0
072 A000300 12
072 B000300 28669
072 C000300 0
072 D000300 0
072 E000300 0
072 F000300 4157
072 G000300 0
072 H000300 0
072 I000300 0
072 J000300 0
072 K000300 0
072 L000300 0
072 M000300 1
072 N000300 0
072 O000300 0
072 P000300 0
072 Q000300 0
072 R000300 0
072 S000300 0
072 T000300 0
072 U000300 0
072 V000300 0
072 W000300 0
072 X000300 4158
072 Y000300 54
072 Z000300 24565
072AA000300 17
072BB000300 0
072CC010300 0
072CC020300 0
072DD010300 24565
072DD020300 0
072EE000300 0
073 A010300 0.0296
073 A020300 0.0000
073 B000300 0.0000
073 C000300 0.0000
074 A000300 0
074 B000300 0
074 C000300 898981
<PAGE> PAGE 18
074 D000300 0
074 E000300 0
074 F000300 0
074 G000300 0
074 H000300 0
074 I000300 0
074 J000300 0
074 K000300 0
074 L000300 16029
074 M000300 0
074 N000300 915010
074 O000300 8137
074 P000300 381
074 Q000300 0
074 R010300 0
074 R020300 0
074 R030300 0
074 R040300 1262
074 S000300 0
074 T000300 905230
074 U010300 905265
074 U020300 0
074 V010300 1.00
074 V020300 0.00
074 W000300 0.9999
074 X000300 4100
074 Y000300 0
075 A000300 831999
075 B000300 0
076 000300 0.00
SIGNATURE JOHN H. COSTELLO
TITLE ASSISTANT TREASURER
<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>
YEAR
<FISCAL-YEAR-END>
JAN-31-1999
<PERIOD-END>
JAN-31-1999
<INVESTMENTS-AT-COST>
1,293,593
<INVESTMENTS-AT-VALUE>
1,386,970
<RECEIVABLES>
17,566
<ASSETS-OTHER>
0
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
1,404,536
<PAYABLE-FOR-SECURITIES>
6,150
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
3,652
<TOTAL-LIABILITIES>
9,802
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
1,307,252
<SHARES-COMMON-STOCK>
115,850
<SHARES-COMMON-PRIOR>
102,968
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(5,895)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
93,377
<NET-ASSETS>
1,394,734
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
68,929
<OTHER-INCOME>
0
<EXPENSES-NET>
6,603
<NET-INVESTMENT-INCOME>
62,326
<REALIZED-GAINS-CURRENT>
6,548
<APPREC-INCREASE-CURRENT>
5,777
<NET-CHANGE-FROM-OPS>
74,651
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
62,326
<DISTRIBUTIONS-OF-GAINS>
3,424
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
34,483
<NUMBER-OF-SHARES-REDEEMED>
25,780
<SHARES-REINVESTED>
4,179
<NET-CHANGE-IN-ASSETS>
162,583
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(8,964)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
4,987
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
6,640
<AVERAGE-NET-ASSETS>
1,299,565
<PER-SHARE-NAV-BEGIN>
11.970
<PER-SHARE-NII>
.571
<PER-SHARE-GAIN-APPREC>
.100
<PER-SHARE-DIVIDEND>
.571
<PER-SHARE-DISTRIBUTIONS>
.030
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
12.040
<EXPENSE-RATIO>
51
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000357057
<NAME> Fidelity Massachusetts Municipal Trust
<SERIES>
<NUMBER> 11
<NAME> Fidelity Massachusetts Municipal Money Market Fund
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
YEAR
<FISCAL-YEAR-END>
JAN-31-1999
<PERIOD-END>
JAN-31-1999
<INVESTMENTS-AT-COST>
1,577,258
<INVESTMENTS-AT-VALUE>
1,577,258
<RECEIVABLES>
34,704
<ASSETS-OTHER>
59
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
1,612,021
<PAYABLE-FOR-SECURITIES>
14,542
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
12,339
<TOTAL-LIABILITIES>
26,881
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
1,585,179
<SHARES-COMMON-STOCK>
1,585,090
<SHARES-COMMON-PRIOR>
1,199,524
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(39)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
1,585,140
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
46,345
<OTHER-INCOME>
0
<EXPENSES-NET>
7,629
<NET-INVESTMENT-INCOME>
38,716
<REALIZED-GAINS-CURRENT>
27
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
38,743
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
38,716
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
4,715,001
<NUMBER-OF-SHARES-REDEEMED>
4,366,775
<SHARES-REINVESTED>
37,340
<NET-CHANGE-IN-ASSETS>
385,593
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(66)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
5,186
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
7,637
<AVERAGE-NET-ASSETS>
1,351,848
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.029
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
.029
<PER-SHARE-DISTRIBUTIONS>
0
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
56
<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>
YEAR
<FISCAL-YEAR-END>
JAN-31-1999
<PERIOD-END>
JAN-31-1999
<INVESTMENTS-AT-COST>
898,981
<INVESTMENTS-AT-VALUE>
898,981
<RECEIVABLES>
16,029
<ASSETS-OTHER>
0
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
915,010
<PAYABLE-FOR-SECURITIES>
8,137
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
1,643
<TOTAL-LIABILITIES>
9,780
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
905,268
<SHARES-COMMON-STOCK>
905,265
<SHARES-COMMON-PRIOR>
744,913
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(38)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
905,230
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
28,669
<OTHER-INCOME>
0
<EXPENSES-NET>
4,104
<NET-INVESTMENT-INCOME>
24,565
<REALIZED-GAINS-CURRENT>
17
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
24,582
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
24,565
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
1,074,220
<NUMBER-OF-SHARES-REDEEMED>
937,470
<SHARES-REINVESTED>
23,602
<NET-CHANGE-IN-ASSETS>
160,370
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(56)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
4,157
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
4,158
<AVERAGE-NET-ASSETS>
831,999
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.030
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
.030
<PER-SHARE-DISTRIBUTIONS>
0
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
50
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
