<PAGE> PAGE 1
000 A000000 05/31/95
000 C000000 0000869427
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 Y
000 H000000 N
000 I000000 3.0.a
000 J000000 A
001 A000000 DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUS
001 B000000 811-6208
001 C000000 2123922550
002 A000000 TWO WORLD TRADE CENTER
002 B000000 NEW YORK
002 C000000 NY
002 D010000 10048
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 Y
007 B000000 10
007 C010100 1
007 C020100 ARIZONA
007 C030100 N
007 C010200 2
007 C020200 CALIFORNIA
007 C030200 N
007 C010300 3
007 C020300 FLORIDA
007 C030300 N
007 C010400 4
007 C020400 MASSACHUSETTS
007 C030400 N
007 C010500 5
007 C020500 MICHIGAN
007 C030500 N
007 C010600 6
007 C020600 MINNESOTA
007 C030600 N
007 C010700 7
007 C020700 NEW JERSEY
007 C030700 N
007 C010800 8
007 C020800 NEW YORK
007 C030800 N
007 C010900 9
007 C020900 OHIO
007 C030900 N
007 C011000 10
007 C021000 PENNSYLVANIA
<PAGE> PAGE 2
007 C031000 N
008 A00AA01 DEAN WITTER INTERCAPITAL INC.
008 B00AA01 A
008 C00AA01 801-42061
008 D01AA01 NEW YORK
008 D02AA01 NY
008 D03AA01 10048
010 A00AA01 DEAN WITTER SERVICES COMPANY INC.
010 C01AA01 NEW YORK
010 C02AA01 NY
010 C03AA01 10048
011 A00AA01 DEAN WITTER DISTRIBUTORS INC.
011 B00AA01 8-45262
011 C01AA01 NEW YORK
011 C02AA01 NY
011 C03AA01 10048
012 A00AA01 DEAN WITTER TRUST COMPANY
012 B00AA01 84-1785
012 C01AA01 JERSEY CITY
012 C02AA01 NJ
012 C03AA01 07311
013 A00AA01 PRICE WATERHOUSE LLP
013 B01AA01 NEW YORK
013 B02AA01 NY
013 B03AA01 10036
015 A00AA01 THE BANK OF NEW YORK
015 B00AA01 C
015 C01AA01 NEW YORK
015 C02AA01 NY
015 C03AA01 10286
015 E01AA01 X
018 00AA00 Y
019 A00AA00 Y
019 B00AA00 117
019 C00AA00 DEANWITTER
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, PIERCE, FENNER & SMITH INC.
022 B000001 13-5674085
022 C000001 5715
022 D000001 10352
022 A000002 JOHN NUVEEN & COMPANY
<PAGE> PAGE 3
022 B000002 36-2639476
022 C000002 4400
022 D000002 4800
022 A000003 RAUSCHER PIERCE REFSNES, INC.
022 B000003 75-1828470
022 C000003 3300
022 D000003 5500
022 A000004 MORGAN STANLEY & CO., INC.
022 B000004 13-2655998
022 C000004 4115
022 D000004 3895
022 A000005 PAINEWEBBER INC.
022 B000005 13-2638166
022 C000005 5816
022 D000005 1100
022 A000006 CHEMICAL SECURITIES INC.
022 B000006 13-3379014
022 C000006 4600
022 D000006 600
022 A000007 SMITH BARNEY SHEARSON LEHMAN
022 B000007 13-1912900
022 C000007 1339
022 D000007 3500
022 A000008 J.P. MORGAN SECURITIES INC.
022 B000008 13-3224016
022 C000008 1400
022 D000008 1900
022 A000009 GOLDMAN SACHS & CO.
022 B000009 13-5108880
022 C000009 2804
022 D000009 0
022 A000010 C.S. FIRST BOSTON CORPORATION
022 B000010 13-5659485
022 C000010 1100
022 D000010 1700
023 C000000 43309
023 D000000 43331
024 00AA00 N
025 D00AA01 0
025 D00AA02 0
025 D00AA03 0
025 D00AA04 0
025 D00AA05 0
025 D00AA06 0
025 D00AA07 0
025 D00AA08 0
026 A000000 N
026 B000000 Y
026 C000000 N
026 D000000 Y
026 E000000 N
<PAGE> PAGE 4
026 F000000 N
026 G010000 N
026 G020000 N
026 H000000 N
027 000000 Y
034 00AA00 N
035 00AA00 0
036 B00AA00 0
037 00AA00 N
038 00AA00 0
039 00AA00 N
040 00AA00 Y
041 00AA00 Y
045 00AA00 Y
046 00AA00 N
047 00AA00 Y
048 00AA00 0.350
048 A01AA00 0
048 A02AA00 0.000
048 B01AA00 0
048 B02AA00 0.000
048 C01AA00 0
048 C02AA00 0.000
048 D01AA00 0
048 D02AA00 0.000
048 E01AA00 0
048 E02AA00 0.000
048 F01AA00 0
048 F02AA00 0.000
048 G01AA00 0
048 G02AA00 0.000
048 H01AA00 0
048 H02AA00 0.000
048 I01AA00 0
048 I02AA00 0.000
048 J01AA00 0
048 J02AA00 0.000
048 K01AA00 0
048 K02AA00 0.000
049 00AA00 N
050 00AA00 N
051 00AA00 N
052 00AA00 N
053 A00AA00 Y
053 B00AA00 Y
053 C00AA00 N
054 A00AA00 Y
054 B00AA00 Y
054 C00AA00 Y
054 D00AA00 N
054 E00AA00 N
<PAGE> PAGE 5
054 F00AA00 N
054 G00AA00 Y
054 H00AA00 Y
054 I00AA00 N
054 J00AA00 Y
054 K00AA00 N
054 L00AA00 Y
054 M00AA00 Y
054 N00AA00 N
054 O00AA00 Y
058 A00AA00 N
059 00AA00 Y
060 A00AA00 N
060 B00AA00 N
061 00AA00 1000
066 A00AA00 N
067 00AA00 N
068 A00AA00 N
068 B00AA00 N
069 00AA00 N
077 A000000 N
078 000000 N
080 C00AA00 0
081 B00AA00 0
082 B00AA00 0
083 B00AA00 0
084 B00AA00 0
028 A010100 591
028 A020100 0
028 A030100 0
028 A040100 1382
028 B010100 290
028 B020100 223
028 B030100 0
028 B040100 1070
028 C010100 470
028 C020100 107
028 C030100 0
028 C040100 585
028 D010100 344
028 D020100 123
028 D030100 0
028 D040100 1430
028 E010100 363
028 E020100 105
028 E030100 0
028 E040100 269
028 F010100 883
028 F020100 110
028 F030100 0
028 F040100 901
<PAGE> PAGE 6
028 G010100 2941
028 G020100 668
028 G030100 0
028 G040100 5637
028 H000100 2941
029 000100 Y
030 A000100 76
030 B000100 4.00
030 C000100 0.50
031 A000100 0
031 B000100 0
032 000100 0
033 000100 76
042 A000100 0
042 B000100 0
042 C000100 100
042 D000100 0
042 E000100 0
042 F000100 0
042 G000100 0
042 H000100 0
043 000100 34
044 000100 0
055 A000100 Y
055 B000100 N
056 000100 Y
057 000100 N
062 A000100 Y
062 B000100 0.0
062 C000100 0.0
062 D000100 0.0
062 E000100 5.5
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 0.0
062 M000100 0.0
062 N000100 0.0
062 O000100 92.5
062 P000100 0.0
062 Q000100 0.0
062 R000100 0.0
063 A000100 0
063 B000100 18.4
064 A000100 Y
064 B000100 N
070 A010100 Y
070 A020100 N
<PAGE> PAGE 7
070 B010100 N
070 B020100 N
070 C010100 Y
070 C020100 N
070 D010100 N
070 D020100 N
070 E010100 N
070 E020100 N
070 F010100 N
070 F020100 N
070 G010100 Y
070 G020100 N
070 H010100 N
070 H020100 N
070 I010100 N
070 I020100 N
070 J010100 N
070 J020100 N
070 K010100 N
070 K020100 N
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 N
070 Q010100 N
070 Q020100 N
070 R010100 N
070 R020100 N
071 A000100 714
071 B000100 1104
071 C000100 45046
071 D000100 2
072 A000100 6
072 B000100 1485
072 C000100 0
072 D000100 0
072 E000100 0
072 F000100 85
072 G000100 0
072 H000100 0
072 I000100 11
072 J000100 0
072 K000100 0
072 L000100 5
072 M000100 2
<PAGE> PAGE 8
072 N000100 7
072 O000100 0
072 P000100 0
072 Q000100 0
072 R000100 13
072 S000100 2
072 T000100 34
072 U000100 0
072 V000100 0
072 W000100 7
072 X000100 166
072 Y000100 0
072 Z000100 1319
072AA000100 75
072BB000100 0
072CC010100 4949
072CC020100 0
072DD010100 1319
072DD020100 0
072EE000100 0
073 A010100 0.2700
073 A020100 0.0000
073 B000100 0.0000
073 C000100 0.0000
074 A000100 31
074 B000100 0
074 C000100 2800
074 D000100 46808
074 E000100 0
074 F000100 0
074 G000100 0
074 H000100 0
074 I000100 0
074 J000100 0
074 K000100 0
074 L000100 1058
074 M000100 4
074 N000100 50701
074 O000100 0
074 P000100 25
074 Q000100 0
074 R010100 0
074 R020100 0
074 R030100 0
074 R040100 51
074 S000100 0
074 T000100 50625
074 U010100 4846619
074 U020100 0
074 V010100 10.45
074 V020100 0.00
<PAGE> PAGE 9
074 W000100 0.0000
074 X000100 1323
074 Y000100 2637
075 A000100 0
075 B000100 49007
076 000100 0.00
028 A010200 356
028 A020200 0
028 A030200 0
028 A040200 3536
028 B010200 1142
028 B020200 550
028 B030200 0
028 B040200 1274
028 C010200 961
028 C020200 255
028 C030200 0
028 C040200 1197
028 D010200 985
028 D020200 295
028 D030200 0
028 D040200 1740
028 E010200 498
028 E020200 252
028 E030200 0
028 E040200 3316
028 F010200 1622
028 F020200 269
028 F030200 0
028 F040200 1075
028 G010200 5564
028 G020200 1621
028 G030200 0
028 G040200 12138
028 H000200 5564
029 000200 Y
030 A000200 89
030 B000200 4.00
030 C000200 0.50
031 A000200 0
031 B000200 0
032 000200 0
033 000200 89
042 A000200 0
042 B000200 0
042 C000200 100
042 D000200 0
042 E000200 0
042 F000200 0
042 G000200 0
042 H000200 0
<PAGE> PAGE 10
043 000200 83
044 000200 0
055 A000200 Y
055 B000200 N
056 000200 Y
057 000200 N
062 A000200 Y
062 B000200 0.0
062 C000200 0.0
062 D000200 0.0
062 E000200 5.1
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 94.4
062 P000200 0.0
062 Q000200 0.0
062 R000200 0.0
063 A000200 0
063 B000200 20.0
064 A000200 Y
064 B000200 N
070 A010200 Y
070 A020200 N
070 B010200 N
070 B020200 N
070 C010200 Y
070 C020200 N
070 D010200 N
070 D020200 N
070 E010200 N
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 N
070 J020200 N
070 K010200 N
070 K020200 N
070 L010200 N
<PAGE> PAGE 11
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 N
070 Q010200 N
070 Q020200 N
070 R010200 N
070 R020200 N
071 A000200 2531
071 B000200 1340
071 C000200 106575
071 D000200 6
072 A000200 6
072 B000200 3581
072 C000200 0
072 D000200 0
072 E000200 0
072 F000200 203
072 G000200 0
072 H000200 0
072 I000200 18
072 J000200 0
072 K000200 0
072 L000200 10
072 M000200 5
072 N000200 3
072 O000200 1
072 P000200 0
072 Q000200 0
072 R000200 14
072 S000200 0
072 T000200 83
072 U000200 2
072 V000200 0
072 W000200 5
072 X000200 344
072 Y000200 0
072 Z000200 3237
072AA000200 0
072BB000200 61
072CC010200 0
072CC020200 13247
072DD010200 3237
072DD020200 0
072EE000200 0
073 A010200 0.2758
<PAGE> PAGE 12
073 A020200 0.0000
073 B000200 0.0000
073 C000200 0.0000
074 A000200 0
074 B000200 0
074 C000200 6200
074 D000200 113945
074 E000200 0
074 F000200 0
074 G000200 0
074 H000200 0
074 I000200 0
074 J000200 0
074 K000200 0
074 L000200 2659
074 M000200 18
074 N000200 122822
074 O000200 57
074 P000200 0
074 Q000200 0
074 R010200 0
074 R020200 0
074 R030200 0
074 R040200 2082
074 S000200 0
074 T000200 120683
074 U010200 11480
074 U020200 0
074 V010200 10.51
074 V020200 0.00
074 W000200 0.0000
074 X000200 2443
074 Y000200 7035
075 A000200 0
075 B000200 116353
076 000200 0.00
028 A010300 780
028 A020300 0
028 A030300 0
028 A040300 1753
028 B010300 674
028 B020300 238
028 B030300 0
028 B040300 1900
028 C010300 620
028 C020300 110
028 C030300 0
028 C040300 1618
028 D010300 690
028 D020300 126
028 D030300 0
<PAGE> PAGE 13
028 D040300 3556
028 E010300 966
028 E020300 107
028 E030300 0
028 E040300 1470
028 F010300 1283
028 F020300 114
028 F030300 0
028 F040300 1439
028 G010300 5013
028 G020300 695
028 G030300 0
028 G040300 11736
028 H000300 5013
029 000300 Y
030 A000300 145
030 B000300 4.00
030 C000300 0.50
031 A000300 0
031 B000300 0
032 000300 0
033 000300 145
042 A000300 0
042 B000300 0
042 C000300 100
042 D000300 0
042 E000300 0
042 F000300 0
042 G000300 0
042 H000300 0
043 000300 49
044 000300 0
055 A000300 N
055 B000300 N
056 000300 Y
057 000300 N
062 A000300 Y
062 B000300 0.0
062 C000300 0.0
062 D000300 0.0
062 E000300 2.3
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 0.0
062 M000300 0.0
062 N000300 0.0
062 O000300 98.6
<PAGE> PAGE 14
062 P000300 0.0
062 Q000300 0.0
062 R000300 0.0
063 A000300 0
063 B000300 20.0
064 A000300 Y
064 B000300 N
070 A010300 Y
070 A020300 N
070 B010300 N
070 B020300 N
070 C010300 Y
070 C020300 N
070 D010300 N
070 D020300 N
070 E010300 N
070 E020300 N
070 F010300 N
070 F020300 N
070 G010300 Y
070 G020300 N
070 H010300 N
070 H020300 N
070 I010300 N
070 I020300 N
070 J010300 N
070 J020300 N
070 K010300 N
070 K020300 N
070 L010300 N
070 L020300 N
070 M010300 N
070 M020300 N
070 N010300 Y
070 N020300 N
070 O010300 Y
070 O020300 N
070 P010300 Y
070 P020300 N
070 Q010300 N
070 Q020300 N
070 R010300 N
070 R020300 N
071 A000300 2767
071 B000300 2616
071 C000300 68702
071 D000300 4
072 A000300 6
072 B000300 2208
072 C000300 0
072 D000300 0
<PAGE> PAGE 15
072 E000300 0
072 F000300 127
072 G000300 0
072 H000300 0
072 I000300 14
072 J000300 0
072 K000300 0
072 L000300 6
072 M000300 3
072 N000300 2
072 O000300 0
072 P000300 0
072 Q000300 0
072 R000300 13
072 S000300 3
072 T000300 49
072 U000300 1
072 V000300 0
072 W000300 6
072 X000300 224
072 Y000300 0
072 Z000300 1983
072AA000300 187
072BB000300 0
072CC010300 0
072CC020300 7623
072DD010300 1983
072DD020300 0
072EE000300 0
073 A010300 0.2800
073 A020300 0.0000
073 B000300 0.0000
073 C000300 0.0000
074 A000300 47
074 B000300 0
074 C000300 1700
074 D000300 72231
074 E000300 0
074 F000300 0
074 G000300 0
074 H000300 0
074 I000300 0
074 J000300 0
074 K000300 0
074 L000300 1224
074 M000300 15
074 N000300 75217
074 O000300 1827
074 P000300 38
074 Q000300 0
074 R010300 0
<PAGE> PAGE 16
074 R020300 0
074 R030300 0
074 R040300 63
074 S000300 0
074 T000300 73289
074 U010300 6853
074 U020300 0
074 V010300 10.69
074 V020300 0.00
074 W000300 0.0000
074 X000300 1827
074 Y000300 5444
075 A000300 0
075 B000300 72719
076 000300 0.00
028 A010400 78
028 A020400 0
028 A030400 0
028 A040400 696
028 B010400 55
028 B020400 82
028 B030400 0
028 B040400 185
028 C010400 124
028 C020400 38
028 C030400 0
028 C040400 220
028 D010400 204
028 D020400 44
028 D030400 0
028 D040400 185
028 E010400 172
028 E020400 39
028 E030400 0
028 E040400 35
028 F010400 486
028 F020400 42
028 F030400 0
028 F040400 99
028 G010400 1119
028 G020400 245
028 G030400 0
028 G040400 1420
028 H000400 1119
029 000400 Y
030 A000400 32
030 B000400 4.00
030 C000400 0.50
031 A000400 1
031 B000400 0
032 000400 0
<PAGE> PAGE 17
033 000400 32
042 A000400 0
042 B000400 0
042 C000400 0
042 D000400 100
042 E000400 0
042 F000400 0
042 G000400 0
042 H000400 0
043 000400 11
044 000400 0
055 A000400 N
055 B000400 N
056 000400 Y
057 000400 N
062 A000400 Y
062 B000400 0.0
062 C000400 0.0
062 D000400 0.0
062 E000400 9.9
062 F000400 0.0
062 G000400 0.0
062 H000400 0.0
062 I000400 0.0
062 J000400 0.0
062 K000400 0.0
062 L000400 0.0
062 M000400 0.0
062 N000400 0.0
062 O000400 90.8
062 P000400 0.0
062 Q000400 0.0
062 R000400 0.0
063 A000400 0
063 B000400 18.7
064 A000400 Y
064 B000400 N
070 A010400 Y
070 A020400 N
070 B010400 N
070 B020400 N
070 C010400 Y
070 C020400 N
070 D010400 N
070 D020400 N
070 E010400 N
070 E020400 N
070 F010400 N
070 F020400 N
070 G010400 Y
070 G020400 N
<PAGE> PAGE 18
070 H010400 N
070 H020400 N
070 I010400 N
070 I020400 N
070 J010400 N
070 J020400 N
070 K010400 N
070 K020400 N
070 L010400 N
070 L020400 N
070 M010400 N
070 M020400 N
070 N010400 Y
070 N020400 N
070 O010400 Y
070 O020400 N
070 P010400 Y
070 P020400 N
070 Q010400 N
070 Q020400 N
070 R010400 N
070 R020400 N
071 A000400 495
071 B000400 813
071 C000400 14782
071 D000400 0
072 A000400 6
072 B000400 483
072 C000400 0
072 D000400 0
072 E000400 0
072 F000400 2
072 G000400 0
072 H000400 0
072 I000400 4
072 J000400 0
072 K000400 0
072 L000400 2
072 M000400 0
072 N000400 1
072 O000400 0
072 P000400 0
072 Q000400 0
072 R000400 13
072 S000400 0
072 T000400 11
072 U000400 2
072 V000400 0
072 W000400 5
072 X000400 40
072 Y000400 0
<PAGE> PAGE 19
072 Z000400 443
072AA000400 12
072BB000400 0
072CC010400 1784
072CC020400 0
072DD010400 443
072DD020400 0
072EE000400 0
073 A010400 0.2845
073 A020400 0.0000
073 B000400 0.0000
073 C000400 0.0000
074 A000400 28
074 B000400 0
074 C000400 1700
074 D000400 15671
074 E000400 0
074 F000400 0
074 G000400 0
074 H000400 0
074 I000400 0
074 J000400 20
074 K000400 0
074 L000400 346
074 M000400 8
074 N000400 17773
074 O000400 497
074 P000400 3
074 Q000400 0
074 R010400 0
074 R020400 0
074 R030400 0
074 R040400 25
074 S000400 0
074 T000400 17248
074 U010400 1605
074 U020400 0
074 V010400 10.74
074 V020400 0.00
074 W000400 0.0000
074 X000400 466
074 Y000400 974
075 A000400 0
075 B000400 16057
076 000400 0.00
028 A010500 115
028 A020500 0
028 A030500 0
028 A040500 453
028 B010500 201
028 B020500 104
<PAGE> PAGE 20
028 B030500 0
028 B040500 186
028 C010500 195
028 C020500 50
028 C030500 0
028 C040500 359
028 D010500 64
028 D020500 59
028 D030500 0
028 D040500 410
028 E010500 157
028 E020500 50
028 E030500 0
028 E040500 130
028 F010500 179
028 F020500 54
028 F030500 0
028 F040500 379
028 G010500 911
028 G020500 317
028 G030500 0
028 G040500 1917
028 H000500 911
029 000500 Y
030 A000500 33
030 B000500 4.00
030 C000500 0.50
031 A000500 0
031 B000500 0
032 000500 0
033 000500 33
042 A000500 0
042 B000500 0
042 C000500 100
042 D000500 0
042 E000500 0
042 F000500 0
042 G000500 0
042 H000500 0
043 000500 16
044 000500 0
055 A000500 N
055 B000500 N
056 000500 Y
057 000500 N
062 A000500 Y
062 B000500 0.0
062 C000500 0.0
062 D000500 0.0
062 E000500 6.1
062 F000500 0.0
<PAGE> PAGE 21
062 G000500 0.0
062 H000500 0.0
062 I000500 0.0
062 J000500 0.0
062 K000500 0.0
062 L000500 0.0
062 M000500 0.0
062 N000500 0.0
062 O000500 96.9
062 P000500 0.0
062 Q000500 0.0
062 R000500 0.0
063 A000500 0
063 B000500 21.0
064 A000500 Y
064 B000500 N
070 A010500 Y
070 A020500 N
070 B010500 N
070 B020500 N
070 C010500 Y
070 C020500 N
070 D010500 N
070 D020500 N
070 E010500 N
070 E020500 N
070 F010500 N
070 F020500 N
070 G010500 Y
070 G020500 N
070 H010500 N
070 H020500 N
070 I010500 N
070 I020500 N
070 J010500 N
070 J020500 N
070 K010500 N
070 K020500 N
070 L010500 N
070 L020500 N
070 M010500 N
070 M020500 N
070 N010500 Y
070 N020500 N
070 O010500 Y
070 O020500 N
070 P010500 Y
070 P020500 N
070 Q010500 N
070 Q020500 N
070 R010500 N
<PAGE> PAGE 22
070 R020500 N
071 A000500 1288
071 B000500 0
071 C000500 18778
071 D000500 0
072 A000500 6
072 B000500 632
072 C000500 0
072 D000500 0
072 E000500 0
072 F000500 36
072 G000500 0
072 H000500 0
072 I000500 6
072 J000500 0
072 K000500 0
072 L000500 2
072 M000500 0
072 N000500 1
072 O000500 1
072 P000500 0
072 Q000500 0
072 R000500 8
072 S000500 1
072 T000500 13
072 U000500 2
072 V000500 0
072 W000500 3
072 X000500 73
072 Y000500 21
072 Z000500 580
072AA000500 0
072BB000500 0
072CC010500 0
072CC020500 2313
072DD010500 580
072DD020500 0
072EE000500 0
073 A010500 0.2823
073 A020500 0.0000
073 B000500 0.0000
073 C000500 0.0000
074 A000500 72
074 B000500 1300
074 C000500 0
074 D000500 20798
074 E000500 0
074 F000500 0
074 G000500 0
074 H000500 0
074 I000500 0
<PAGE> PAGE 23
074 J000500 0
074 K000500 0
074 L000500 331
074 M000500 7
074 N000500 22508
074 O000500 992
074 P000500 7
074 Q000500 0
074 R010500 0
074 R020500 0
074 R030500 0
074 R040500 54
074 S000500 0
074 T000500 21455
074 U010500 2028
074 U020500 0
074 V010500 10.58
074 V020500 0.00
074 W000500 0.0000
074 X000500 862
074 Y000500 1
075 A000500 0
075 B000500 20829
076 000500 0.00
028 A010600 53
028 A020600 0
028 A030600 0
028 A040600 33
028 B010600 67
028 B020600 55
028 B030600 0
028 B040600 43
028 C010600 102
028 C020600 25
028 C030600 0
028 C040600 22
028 D010600 31
028 D020600 29
028 D030600 0
028 D040600 363
028 E010600 127
028 E020600 24
028 E030600 0
028 E040600 155
028 F010600 296
028 F020600 26
028 F030600 0
028 F040600 152
028 G010600 676
028 G020600 159
028 G030600 0
<PAGE> PAGE 24
028 G040600 768
028 H000600 676
029 000600 Y
030 A000600 19
030 B000600 4.00
030 C000600 0.50
031 A000600 0
031 B000600 0
032 000600 0
033 000600 19
042 A000600 0
042 B000600 0
042 C000600 100
042 D000600 0
042 E000600 0
042 F000600 0
042 G000600 0
042 H000600 0
043 000600 17
044 000600 0
055 A000600 Y
055 B000600 N
056 000600 Y
057 000600 N
062 A000600 Y
062 B000600 0.0
062 C000600 0.0
062 D000600 0.0
062 E000600 5.4
062 F000600 0.0
062 G000600 0.0
062 H000600 0.0
062 I000600 0.0
062 J000600 0.0
062 K000600 0.0
062 L000600 0.0
062 M000600 0.0
062 N000600 0.0
062 O000600 90.8
062 P000600 0.0
062 Q000600 0.0
062 R000600 0.0
063 A000600 0
063 B000600 20.0
064 A000600 Y
064 B000600 N
070 A010600 Y
070 A020600 N
070 B010600 N
070 B020600 N
070 C010600 Y
<PAGE> PAGE 25
070 C020600 N
070 D010600 N
070 D020600 N
070 E010600 N
070 E020600 N
070 F010600 N
070 F020600 N
070 G010600 Y
070 G020600 N
070 H010600 N
070 H020600 N
070 I010600 N
070 I020600 N
070 J010600 N
070 J020600 N
070 K010600 N
070 K020600 N
070 L010600 N
070 L020600 N
070 M010600 N
070 M020600 N
070 N010600 Y
070 N020600 N
070 O010600 Y
070 O020600 N
070 P010600 Y
070 P020600 N
070 Q010600 N
070 Q020600 N
070 R010600 N
070 R020600 N
071 A000600 0
071 B000600 30
071 C000600 9500
071 D000600 0
072 A000600 6
072 B000600 312
072 C000600 0
072 D000600 0
072 E000600 0
072 F000600 18
072 G000600 0
072 H000600 0
072 I000600 3
072 J000600 0
072 K000600 0
072 L000600 1
072 M000600 0
072 N000600 2
072 O000600 0
072 P000600 0
<PAGE> PAGE 26
072 Q000600 0
072 R000600 14
072 S000600 0
072 T000600 7
072 U000600 2
072 V000600 0
072 W000600 4
072 X000600 51
072 Y000600 25
072 Z000600 286
072AA000600 0
072BB000600 134
072CC010600 0
072CC020600 1168
072DD010600 286
072DD020600 0
072EE000600 0
073 A010600 0.2700
073 A020600 0.0000
073 B000600 0.0800
073 C000600 0.0000
074 A000600 176
074 B000600 0
074 C000600 600
074 D000600 10012
074 E000600 0
074 F000600 0
074 G000600 0
074 H000600 0
074 I000600 0
074 J000600 0
074 K000600 2
074 L000600 268
074 M000600 4
074 N000600 11062
074 O000600 0
074 P000600 2
074 Q000600 0
074 R010600 0
074 R020600 0
074 R030600 0
074 R040600 33
074 S000600 0
074 T000600 11027
074 U010600 1062
074 U020600 0
074 V010600 10.39
074 V020600 0.00
074 W000600 0.0000
074 X000600 395
074 Y000600 857
<PAGE> PAGE 27
075 A000600 0
075 B000600 10483
076 000600 0.00
028 A010700 201
028 A020700 0
028 A030700 0
028 A040700 1146
028 B010700 315
028 B020700 240
028 B030700 0
028 B040700 795
028 C010700 442
028 C020700 111
028 C030700 0
028 C040700 661
028 D010700 436
028 D020700 131
028 D030700 0
028 D040700 683
028 E010700 319
028 E020700 109
028 E030700 0
028 E040700 375
028 F010700 220
028 F020700 116
028 F030700 0
028 F040700 1371
028 G010700 1933
028 G020700 707
028 G030700 0
028 G040700 5031
028 H000700 1933
029 000700 Y
030 A000700 66
030 B000700 4.00
030 C000700 0.50
031 A000700 0
031 B000700 0
032 000700 0
033 000700 66
042 A000700 0
042 B000700 0
042 C000700 100
042 D000700 0
042 E000700 0
042 F000700 0
042 G000700 0
042 H000700 0
043 000700 30
044 000700 0
055 A000700 Y
<PAGE> PAGE 28
055 B000700 N
056 000700 Y
057 000700 N
062 A000700 Y
062 B000700 0.0
062 C000700 0.0
062 D000700 0.0
062 E000700 0.8
062 F000700 0.0
062 G000700 0.0
062 H000700 0.0
062 I000700 0.0
062 J000700 0.0
062 K000700 0.0
062 L000700 0.0
062 M000700 0.0
062 N000700 0.0
062 O000700 98.4
062 P000700 0.0
062 Q000700 0.0
062 R000700 0.0
063 A000700 0
063 B000700 20.0
064 A000700 Y
064 B000700 N
070 A010700 Y
070 A020700 N
070 B010700 N
070 B020700 N
070 C010700 Y
070 C020700 N
070 D010700 N
070 D020700 N
070 E010700 N
070 E020700 N
070 F010700 N
070 F020700 N
070 G010700 Y
070 G020700 N
070 H010700 N
070 H020700 N
070 I010700 N
070 I020700 N
070 J010700 N
070 J020700 N
070 K010700 N
070 K020700 N
070 L010700 N
070 L020700 N
070 M010700 N
070 M020700 N
<PAGE> PAGE 29
070 N010700 Y
070 N020700 N
070 O010700 Y
070 O020700 N
070 P010700 Y
070 P020700 N
070 Q010700 N
070 Q020700 N
070 R010700 N
070 R020700 N
071 A000700 3421
071 B000700 1952
071 C000700 44138
071 D000700 4
072 A000700 6
072 B000700 1454
072 C000700 0
072 D000700 0
072 E000700 0
072 F000700 82
072 G000700 0
072 H000700 0
072 I000700 12
072 J000700 0
072 K000700 0
072 L000700 4
072 M000700 2
072 N000700 2
072 O000700 0
072 P000700 0
072 Q000700 0
072 R000700 14
072 S000700 0
072 T000700 30
072 U000700 2
072 V000700 0
072 W000700 5
072 X000700 153
072 Y000700 0
072 Z000700 1301
072AA000700 0
072BB000700 69
072CC010700 5187
072CC020700 0
072DD010700 1301
072DD020700 0
072EE000700 0
073 A010700 0.2800
073 A020700 0.0000
073 B000700 0.0000
073 C000700 0.0000
<PAGE> PAGE 30
074 A000700 35
074 B000700 0
074 C000700 400
074 D000700 47438
074 E000700 0
074 F000700 0
074 G000700 0
074 H000700 0
074 I000700 0
074 J000700 1479
074 K000700 0
074 L000700 968
074 M000700 11
074 N000700 50331
074 O000700 1991
074 P000700 24
074 Q000700 0
074 R010700 0
074 R020700 0
074 R030700 0
074 R040700 92
074 S000700 0
074 T000700 48224
074 U010700 4566
074 U020700 0
074 V010700 10.56
074 V020700 0.00
074 W000700 0.0000
074 X000700 1651
074 Y000700 3769
075 A000700 0
075 B000700 47176857
076 000700 0.00
028 A010800 87
028 A020800 0
028 A030800 0
028 A040800 300
028 B010800 401
028 B020800 70
028 B030800 0
028 B040800 513
028 C010800 38
028 C020800 34
028 C030800 0
028 C040800 138
028 D010800 105
028 D020800 41
028 D030800 0
028 D040800 280
028 E010800 111
028 E020800 33
<PAGE> PAGE 31
028 E030800 0
028 E040800 415
028 F010800 179
028 F020800 36
028 F030800 0
028 F040800 220
028 G010800 921
028 G020800 214
028 G030800 0
028 G040800 1866
028 H000800 922
029 000800 Y
030 A000800 15
030 B000800 4.00
030 C000800 0.50
031 A000800 0
031 B000800 0
032 000800 0
033 000800 15
042 A000800 0
042 B000800 0
042 C000800 100
042 D000800 0
042 E000800 0
042 F000800 0
042 G000800 0
042 H000800 0
043 000800 10
044 000800 0
055 A000800 Y
055 B000800 N
056 000800 Y
057 000800 N
062 A000800 Y
062 B000800 0.0
062 C000800 0.0
062 D000800 0.0
062 E000800 2.6
062 F000800 0.0
062 G000800 0.0
062 H000800 0.0
062 I000800 0.0
062 J000800 0.0
062 K000800 0.0
062 L000800 0.0
062 M000800 0.0
062 N000800 0.0
062 O000800 95.2
062 P000800 0.0
062 Q000800 0.0
062 R000800 0.0
<PAGE> PAGE 32
063 A000800 0
063 B000800 22.0
064 A000800 Y
064 B000800 N
070 A010800 Y
070 A020800 N
070 B010800 N
070 B020800 N
070 C010800 Y
070 C020800 N
070 D010800 N
070 D020800 N
070 E010800 N
070 E020800 N
070 F010800 N
070 F020800 N
070 G010800 Y
070 G020800 N
070 H010800 N
070 H020800 N
070 I010800 N
070 I020800 N
070 J010800 N
070 J020800 N
070 K010800 N
070 K020800 N
070 L010800 N
070 L020800 N
070 M010800 N
070 M020800 N
070 N010800 Y
070 N020800 N
070 O010800 Y
070 O020800 N
070 P010800 Y
070 P020800 N
070 Q010800 N
070 Q020800 N
070 R010800 N
070 R020800 N
071 A000800 2416
071 B000800 507
071 C000800 13303
071 D000800 4
072 A000800 6
072 B000800 451
072 C000800 0
072 D000800 0
072 E000800 0
072 F000800 26
072 G000800 0
<PAGE> PAGE 33
072 H000800 0
072 I000800 3
072 J000800 0
072 K000800 0
072 L000800 1
072 M000800 1
072 N000800 3
072 O000800 0
072 P000800 0
072 Q000800 0
072 R000800 10
072 S000800 0
072 T000800 10
072 U000800 2
072 V000800 0
072 W000800 3
072 X000800 60
072 Y000800 22
072 Z000800 413
072AA000800 8
072BB000800 0
072CC010800 1732
072CC020800 0
072DD010800 413
072DD020800 0
072EE000800 0
073 A010800 0.2800
073 A020800 0.0000
073 B000800 0.0000
073 C000800 0.0000
074 A000800 32
074 B000800 0
074 C000800 400
074 D000800 14790
074 E000800 0
074 F000800 0
074 G000800 0
074 H000800 0
074 I000800 0
074 J000800 0
074 K000800 0
074 L000800 323
074 M000800 7
074 N000800 15552
074 O000800 0
074 P000800 4
074 Q000800 0
074 R010800 0
074 R020800 0
074 R030800 0
074 R040800 17
<PAGE> PAGE 34
074 S000800 0
074 T000800 15531
074 U010800 1462
074 U020800 0
074 V010800 10.62
074 V020800 0.00
074 W000800 0.0000
074 X000800 0
074 Y000800 1002
075 A000800 0
075 B000800 15103
076 000800 0.00
028 A010900 172
028 A020900 0
028 A030900 0
028 A040900 574
028 B010900 357
028 B020900 122
028 B030900 0
028 B040900 630
028 C010900 203
028 C020900 58
028 C030900 0
028 C040900 381
028 D010900 78
028 D020900 67
028 D030900 0
028 D040900 131
028 E010900 91
028 E020900 57
028 E030900 0
028 E040900 277
028 F010900 340
028 F020900 60
028 F030900 0
028 F040900 527
028 G010900 1241
028 G020900 364
028 G030900 0
028 G040900 2520
028 H000900 1241
029 000900 Y
030 A000900 39
030 B000900 4.00
030 C000900 0.50
031 A000900 0
031 B000900 0
032 000900 0
033 000900 39
042 A000900 0
042 B000900 0
<PAGE> PAGE 35
042 C000900 100
042 D000900 0
042 E000900 0
042 F000900 0
042 G000900 0
042 H000900 0
043 000900 15
044 000900 0
055 A000900 N
055 B000900 N
056 000900 Y
057 000900 N
062 A000900 Y
062 B000900 0.0
062 C000900 0.0
062 D000900 0.0
062 E000900 8.1
062 F000900 0.0
062 G000900 0.0
062 H000900 0.0
062 I000900 0.0
062 J000900 0.0
062 K000900 0.0
062 L000900 0.0
062 M000900 0.0
062 N000900 0.0
062 O000900 91.9
062 P000900 0.0
062 Q000900 0.0
062 R000900 0.0
063 A000900 0
063 B000900 19.0
064 A000900 Y
064 B000900 N
070 A010900 Y
070 A020900 N
070 B010900 N
070 B020900 N
070 C010900 Y
070 C020900 N
070 D010900 N
070 D020900 N
070 E010900 N
070 E020900 N
070 F010900 N
070 F020900 N
070 G010900 Y
070 G020900 N
070 H010900 N
070 H020900 N
070 I010900 N
<PAGE> PAGE 36
070 I020900 N
070 J010900 N
070 J020900 N
070 K010900 N
070 K020900 N
070 L010900 N
070 L020900 N
070 M010900 N
070 M020900 N
070 N010900 Y
070 N020900 N
070 O010900 Y
070 O020900 N
070 P010900 Y
070 P020900 N
070 Q010900 N
070 Q020900 N
070 R010900 N
070 R020900 N
071 A000900 990
071 B000900 1824
071 C000900 20062
071 D000900 6
072 A000900 6
072 B000900 651
072 C000900 0
072 D000900 0
072 E000900 0
072 F000900 38
072 G000900 0
072 H000900 0
072 I000900 6
072 J000900 0
072 K000900 0
072 L000900 0
072 M000900 1
072 N000900 2
072 O000900 1
072 P000900 0
072 Q000900 0
072 R000900 12
072 S000900 1
072 T000900 15
072 U000900 2
072 V000900 0
072 W000900 3
072 X000900 81
072 Y000900 27
072 Z000900 598
072AA000900 70
072BB000900 36
<PAGE> PAGE 37
072CC010900 2383
072CC020900 0
072DD010900 598
072DD020900 0
072EE000900 0
073 A010900 0.2804
073 A020900 0.0000
073 B000900 0.0000
073 C000900 0.0000
074 A000900 683
074 B000900 0
074 C000900 1800
074 D000900 20392
074 E000900 0
074 F000900 0
074 G000900 0
074 H000900 0
074 I000900 0
074 J000900 0
074 K000900 0
074 L000900 336
074 M000900 8
074 N000900 23219
074 O000900 995
074 P000900 6
074 Q000900 0
074 R010900 0
074 R020900 0
074 R030900 0
074 R040900 23
074 S000900 0
074 T000900 22195
074 U010900 2104
074 U020900 0
074 V010900 10.55
074 V020900 0.00
074 W000900 0.0000
074 X000900 741
074 Y000900 2050
075 A000900 0
075 B000900 21555
076 000900 0.00
028 A011000 272
028 A021000 0
028 A031000 0
028 A041000 918
028 B011000 878
028 B021000 229
028 B031000 0
028 B041000 788
028 C011000 1547
<PAGE> PAGE 38
028 C021000 107
028 C031000 0
028 C041000 683
028 D011000 1278
028 D021000 125
028 D031000 0
028 D041000 1934
028 E011000 298
028 E021000 108
028 E031000 0
028 E041000 1293
028 F011000 527
028 F021000 119
028 F031000 0
028 F041000 377
028 G011000 4800
028 G021000 688
028 G031000 0
028 G041000 5993
028 H001000 4800
030 A001000 88
030 B001000 4.00
030 C001000 0.50
031 A001000 1
031 B001000 0
032 001000 0
033 001000 87
042 A001000 0
042 B001000 0
042 C001000 100
042 D001000 0
042 E001000 0
042 F001000 0
042 G001000 0
042 H001000 0
043 001000 36
044 001000 0
055 A001000 Y
055 B001000 N
056 001000 Y
057 001000 N
062 A001000 Y
062 B001000 0.0
062 C001000 0.0
062 D001000 0.0
062 E001000 6.5
062 F001000 0.0
062 G001000 0.0
062 H001000 0.0
062 I001000 0.0
062 J001000 0.0
<PAGE> PAGE 39
062 K001000 0.0
062 L001000 0.0
062 M001000 0.0
062 N001000 0.0
062 O001000 92.2
062 P001000 0.0
062 Q001000 0.0
062 R001000 0.0
063 A001000 0
063 B001000 18.8
064 A001000 Y
064 B001000 N
070 A011000 Y
070 A021000 N
070 B011000 N
070 B021000 N
070 C011000 Y
070 C021000 N
070 D011000 N
070 D021000 N
070 E011000 N
070 E021000 N
070 F011000 N
070 F021000 N
070 G011000 Y
070 G021000 N
070 H011000 N
070 H021000 N
070 I011000 N
070 I021000 N
070 J011000 N
070 J021000 N
070 K011000 N
070 K021000 N
070 L011000 N
070 L021000 N
070 M011000 N
070 M021000 N
070 N011000 Y
070 N021000 N
070 O011000 Y
070 O021000 N
070 P011000 Y
070 P021000 N
070 Q011000 N
070 Q021000 N
070 R011000 N
070 R021000 N
071 A001000 4087
071 B001000 2254
071 C001000 44687
<PAGE> PAGE 40
071 D001000 5
072 A001000 6
072 B001000 1512
072 C001000 0
072 D001000 0
072 E001000 0
072 F001000 88
072 G001000 0
072 H001000 0
072 I001000 12
072 J001000 0
072 K001000 0
072 L001000 3
072 M001000 2
072 N001000 3
072 O001000 0
072 P001000 0
072 Q001000 0
072 R001000 13
072 S001000 1
072 T001000 36
072 U001000 0
072 V001000 0
072 W001000 9
072 X001000 167
072 Y001000 0
072 Z001000 1345
072AA001000 0
072BB001000 105
072CC011000 5497
072CC021000 0
072DD011000 1345
072DD021000 0
072EE001000 0
073 A011000 0.2720
073 A021000 0.0000
073 B001000 0.0000
073 C001000 0.0000
074 A001000 73
074 B001000 0
074 C001000 3400
074 D001000 48357
074 E001000 0
074 F001000 0
074 G001000 0
074 H001000 0
074 I001000 0
074 J001000 0
074 K001000 0
074 L001000 690
074 M001000 8
<PAGE> PAGE 41
074 N001000 52528
074 O001000 0
074 P001000 26
074 Q001000 0
074 R011000 0
074 R021000 0
074 R031000 0
074 R041000 57
074 S001000 0
074 T001000 52445
074 U011000 4922189
074 U021000 0
074 V011000 10.65
074 V021000 0.00
074 W001000 0.0000
074 X001000 1563
074 Y001000 5563
075 A001000 0
075 B001000 50536
076 001000 0.00
SIGNATURE SHELDON CURTIS
TITLE VICE PRESIDENT
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST - ARIZONA
05-31-95 SEMI-ANNUAL
</LEGEND>
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> NOV-30-1995
<PERIOD-END> MAY-31-1995
<INVESTMENTS-AT-COST> 47,757,196
<INVESTMENTS-AT-VALUE> 49,607,727
<RECEIVABLES> 1,088,662
<ASSETS-OTHER> 4,468
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 50,700,857
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 76,293
<TOTAL-LIABILITIES> 76,293
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 49,076,035
<SHARES-COMMON-STOCK> 4,846,619
<SHARES-COMMON-PRIOR> 5,054,237
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (302,002)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 1,850,531
<NET-ASSETS> 50,624,564
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 1,484,923
<OTHER-INCOME> 0
<EXPENSES-NET> 165,591
<NET-INVESTMENT-INCOME> 1,319,332
<REALIZED-GAINS-CURRENT> 75,232
<APPREC-INCREASE-CURRENT> 4,949,384
<NET-CHANGE-FROM-OPS> 6,343,948
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1,319,332)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 2,941,103
<NUMBER-OF-SHARES-REDEEMED> (5,637,497)
<SHARES-REINVESTED> 667,982
<NET-CHANGE-IN-ASSETS> 2,996,209
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (377,234)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 85,527
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 165,591
<AVERAGE-NET-ASSETS> 49,007,034
<PER-SHARE-NAV-BEGIN> 9.42
<PER-SHARE-NII> 0.27
<PER-SHARE-GAIN-APPREC> 1.03
<PER-SHARE-DIVIDEND> (0.27)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 13.89
<PER-SHARE-NAV-END> 10.45
<EXPENSE-RATIO> 0.68
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
DEAN WITTER MULTI-SATAE MUNICIPAL SERIES TRUST - CALIFORNIA
05-31-95 SEMI-ANNUAL
</LEGEND>
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> NOV-30-1995
<PERIOD-END> MAY-31-1995
<INVESTMENTS-AT-COST> 118,014,206
<INVESTMENTS-AT-VALUE> 120,145,113
<RECEIVABLES> 2,659,429
<ASSETS-OTHER> 17,433
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 122,821,975
<PAYABLE-FOR-SECURITIES> 1,869,300
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 269,594
<TOTAL-LIABILITIES> 2,138,894
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 118,689,967
<SHARES-COMMON-STOCK> 11,480,061
<SHARES-COMMON-PRIOR> 11,988,826
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (137,793)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 2,130,907
<NET-ASSETS> 120,683,081
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 3,580,628
<OTHER-INCOME> 0
<EXPENSES-NET> 343,724
<NET-INVESTMENT-INCOME> 3,236,904
<REALIZED-GAINS-CURRENT> (60,904)
<APPREC-INCREASE-CURRENT> 13,246,678
<NET-CHANGE-FROM-OPS> 16,422,678
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (3,236,904)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 551,748
<NUMBER-OF-SHARES-REDEEMED> (1,221,496)
<SHARES-REINVESTED> 160,983
<NET-CHANGE-IN-ASSETS> 8,233,023
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (76,889)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 203,059
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 343,724
<AVERAGE-NET-ASSETS> 116,352,722
<PER-SHARE-NAV-BEGIN> 9.38
<PER-SHARE-NII> 0.28
<PER-SHARE-GAIN-APPREC> 1.13
<PER-SHARE-DIVIDEND> (0.28)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.51
<EXPENSE-RATIO> .59
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
DEAN WITTER MULTI-SATAE MUNICIPAL SERIES TRUST - FLORIDA
05-31-95 SEMI-ANNUAL REPORT
</LEGEND>
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> NOV-30-1995
<PERIOD-END> MAY-31-1995
<INVESTMENTS-AT-COST> 71,086,537
<INVESTMENTS-AT-VALUE> 73,931,329
<RECEIVABLES> 1,223,450
<ASSETS-OTHER> 62,708
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 75,217,487
<PAYABLE-FOR-SECURITIES> 1,826,708
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 101,534
<TOTAL-LIABILITIES> 1,928,242
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 70,632,226
<SHARES-COMMON-STOCK> 6,853,022
<SHARES-COMMON-PRIOR> 7,444,462
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (187,773)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 2,844,792
<NET-ASSETS> 73,289,245
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 2,207,546
<OTHER-INCOME> 0
<EXPENSES-NET> 224,383
<NET-INVESTMENT-INCOME> 1,983,163
<REALIZED-GAINS-CURRENT> 187,133
<APPREC-INCREASE-CURRENT> 7,672,525
<NET-CHANGE-FROM-OPS> 9,842,821
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1,983,163)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 487,968
<NUMBER-OF-SHARES-REDEEMED> (1,146,898)
<SHARES-REINVESTED> 67,490639
<NET-CHANGE-IN-ASSETS> 1,831,639
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (374,906)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 126,910
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 224,383
<AVERAGE-NET-ASSETS> 72,719,472
<PER-SHARE-NAV-BEGIN> 9.60
<PER-SHARE-NII> 0.28
<PER-SHARE-GAIN-APPREC> 1.09
<PER-SHARE-DIVIDEND> (0.28)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 00.69
<PER-SHARE-NAV-END> 10.69
<EXPENSE-RATIO> 0.62
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
DEAN WITTER MULTI-SATAE MUNICIPAL SERIES TRUST - MASSACHUSETTS
05-31-95 SEMI-ANNUAL
</LEGEND>
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> NOV-30-1995
<PERIOD-END> MAY-31-1995
<INVESTMENTS-AT-COST> 16,941,886
<INVESTMENTS-AT-VALUE> 17,370,738
<RECEIVABLES> 364,566
<ASSETS-OTHER> 37,342
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 17,772,646
<PAYABLE-FOR-SECURITIES> 497,030
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 27,954
<TOTAL-LIABILITIES> 524,984
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 16,850,386
<SHARES-COMMON-STOCK> 1,605,297
<SHARES-COMMON-PRIOR> 1,615,288
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (31,576)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 428,852
<NET-ASSETS> 17,247,662
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 483,335
<OTHER-INCOME> 0
<EXPENSES-NET> 40,034
<NET-INVESTMENT-INCOME> 443,301
<REALIZED-GAINS-CURRENT> 12,263
<APPREC-INCREASE-CURRENT> 1,784,123
<NET-CHANGE-FROM-OPS> 2,239,687
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 443,301
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 107,540
<NUMBER-OF-SHARES-REDEEMED> (141,217)
<SHARES-REINVESTED> 23,686
<NET-CHANGE-IN-ASSETS> 1,740,894
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (43,839)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 28,023
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 66,107
<AVERAGE-NET-ASSETS> 16,056,910
<PER-SHARE-NAV-BEGIN> 9.60
<PER-SHARE-NII> .28
<PER-SHARE-GAIN-APPREC> 1.14
<PER-SHARE-DIVIDEND> .28
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.74
<EXPENSE-RATIO> 0.50
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
DEAN WITTER MULTI-SATAE MUNICIPAL SERIES TRUST - MICHIGAN
05-31-95 SEMI-ANNUAL
</LEGEND>
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> NOV-30-1995
<PERIOD-END> MAY-31-1995
<INVESTMENTS-AT-COST> 21,524,487
<INVESTMENTS-AT-VALUE> 22,098,172
<RECEIVABLES> 323,534
<ASSETS-OTHER> 86,407
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 22,508,113
<PAYABLE-FOR-SECURITIES> 991,426
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 61,519
<TOTAL-LIABILITIES> 1,052,945
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 20,905,730
<SHARES-COMMON-STOCK> 2,027,776
<SHARES-COMMON-PRIOR> 2,096,327
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (24,247)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 573,685
<NET-ASSETS> 21,455,168
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 631,968
<OTHER-INCOME> 0
<EXPENSES-NET> 51,929
<NET-INVESTMENT-INCOME> 580,039
<REALIZED-GAINS-CURRENT> 0
<APPREC-INCREASE-CURRENT> 2,313,353
<NET-CHANGE-FROM-OPS> 2,893,392
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (580,039)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 90,128
<NUMBER-OF-SHARES-REDEEMED> (189,795)
<SHARES-REINVESTED> 31,116
<NET-CHANGE-IN-ASSETS> 1,624,173
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (24,247)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 36,350
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 73,002
<AVERAGE-NET-ASSETS> 20,828,745
<PER-SHARE-NAV-BEGIN> 9.46
<PER-SHARE-NII> 0.28
<PER-SHARE-GAIN-APPREC> 1.12
<PER-SHARE-DIVIDEND> (0.28)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.58
<EXPENSE-RATIO> 0.50
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
DEAN WITTER MULTI-SATE MUNICIPAL SERIES TRUST - MINNESOTA
05-31-95 SEMI-ANNUAL
</LEGEND>
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> NOV-30-1995
<PERIOD-END> MAY-31-1995
<INVESTMENTS-AT-COST> 10,417,322
<INVESTMENTS-AT-VALUE> 10,611,682
<RECEIVABLES> 267,598
<ASSETS-OTHER> 182,475
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 11,061,755
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 34,692
<TOTAL-LIABILITIES> 34,692
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 10,905,800
<SHARES-COMMON-STOCK> 1,061,733
<SHARES-COMMON-PRIOR> 1,054,915
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (73,097)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 194,360
<NET-ASSETS> 11,027,063
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 311,795
<OTHER-INCOME> 0
<EXPENSES-NET> 26,136
<NET-INVESTMENT-INCOME> 285,659
<REALIZED-GAINS-CURRENT> (134)
<APPREC-INCREASE-CURRENT> 1,168,053
<NET-CHANGE-FROM-OPS> 1,453,578
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (285,659)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 67,176
<NUMBER-OF-SHARES-REDEEMED> (76,275)
<SHARES-REINVESTED> 15,917
<NET-CHANGE-IN-ASSETS> 1,234,212
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (72,963)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 18,285
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 51,456
<AVERAGE-NET-ASSETS> 10,483,046
<PER-SHARE-NAV-BEGIN> 9.28
<PER-SHARE-NII> 0.27
<PER-SHARE-GAIN-APPREC> 1.11
<PER-SHARE-DIVIDEND> (0.27)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.39
<EXPENSE-RATIO> 0.50
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST - NEW JERSEY
05-31-95 SEMI-ANNUAL
</LEGEND>
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> NOV-30-1995
<PERIOD-END> MAY-31-1995
<INVESTMENTS-AT-COST> 46,502,31
<INVESTMENTS-AT-VALUE> 47,837,968
<RECEIVABLES> 2,446,972
<ASSETS-OTHER> 46,235
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 50,331,175
<PAYABLE-FOR-SECURITIES> 1,991,253
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 115,400
<TOTAL-LIABILITIES> 2,106,653
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 47,209,110
<SHARES-COMMON-STOCK> 4,566,708
<SHARES-COMMON-PRIOR> 4,806,875
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (320,243)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 1,335,655
<NET-ASSETS> 48,224,522
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 1,453,984
<OTHER-INCOME> 0
<EXPENSES-NET> 153,261
<NET-INVESTMENT-INCOME> 1,300,723
<REALIZED-GAINS-CURRENT> (69,155)
<APPREC-INCREASE-CURRENT> 5,187,045
<NET-CHANGE-FROM-OPS> 6,418,613
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1,300,723)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 191,431
<NUMBER-OF-SHARES-REDEEMED> (501,262)
<SHARES-REINVESTED> 69,664
<NET-CHANGE-IN-ASSETS> 2,727,267
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (251,008)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 82,333
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 153,261
<AVERAGE-NET-ASSETS> 47,176,857
<PER-SHARE-NAV-BEGIN> 9.47
<PER-SHARE-NII> 0.28
<PER-SHARE-GAIN-APPREC> 1.09
<PER-SHARE-DIVIDEND> (0.28)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.56
<EXPENSE-RATIO> 0.65
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
DEAN WITTER MULTI-SATAE MUNICIPAL SERIES TRUST - NEW YORK
05-31-95 SEMI-ANNUAL
</LEGEND>
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> NOV-30-1995
<PERIOD-END> MAY-31-1995
<INVESTMENTS-AT-COST> 14,827,781
<INVESTMENTS-AT-VALUE> 15,189,956
<RECEIVABLES> 322,920
<ASSETS-OTHER> 39,201
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 15,552,077
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 20,916
<TOTAL-LIABILITIES> 20,916
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 15,175,829
<SHARES-COMMON-STOCK> 1,461,931
<SHARES-COMMON-PRIOR> 1,534,975
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (6,843)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 362,175
<NET-ASSETS> 15,531,161
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 451,044
<OTHER-INCOME> 0
<EXPENSES-NET> 37,653
<NET-INVESTMENT-INCOME> 413,391
<REALIZED-GAINS-CURRENT> 8,537
<APPREC-INCREASE-CURRENT> 1,732,229
<NET-CHANGE-FROM-OPS> 2,154,157
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (413,391)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 91,457
<NUMBER-OF-SHARES-REDEEMED> (185,489)
<SHARES-REINVESTED> 20,988
<NET-CHANGE-IN-ASSETS> 1,009,238
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (15,380)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 26,357
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 59,895
<AVERAGE-NET-ASSETS> 15,102,733
<PER-SHARE-NAV-BEGIN> 9.46
<PER-SHARE-NII> 0.28
<PER-SHARE-GAIN-APPREC> 1.16
<PER-SHARE-DIVIDEND> (0.28)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.62
<EXPENSE-RATIO> 0.50
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST - OHIO
05-31-95 SEMI-ANNUAL
</LEGEND>
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> NOV-30-1995
<PERIOD-END> MAY-31-1995
<INVESTMENTS-AT-COST> 21,639,041
<INVESTMENTS-AT-VALUE> 22,192,334
<RECEIVABLES> 334,698
<ASSETS-OTHER> 691,737
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 23,218,769
<PAYABLE-FOR-SECURITIES> 994,667
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 28,965
<TOTAL-LIABILITIES> 1,023,632
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 21,939,270
<SHARES-COMMON-STOCK> 2,103,951
<SHARES-COMMON-PRIOR> 2,196,075
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (296,426)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 553,293
<NET-ASSETS> 22,195,137
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 651,582
<OTHER-INCOME> 0
<EXPENSES-NET> 53,741
<NET-INVESTMENT-INCOME> 597,841
<REALIZED-GAINS-CURRENT> 33,740
<APPREC-INCREASE-CURRENT> 2,382,934
<NET-CHANGE-FROM-OPS> 3,014,515
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (597,841)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 123,529
<NUMBER-OF-SHARES-REDEEMED> (251,505)
<SHARES-REINVESTED> 35,852
<NET-CHANGE-IN-ASSETS> 1,502,476
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (331,166)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 37,619
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 81,032
<AVERAGE-NET-ASSETS> 21,555,423
<PER-SHARE-NAV-BEGIN> 9.42
<PER-SHARE-NII> 0.28
<PER-SHARE-GAIN-APPREC> 1.13
<PER-SHARE-DIVIDEND> (0.28)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.55
<EXPENSE-RATIO> 0.50
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST - PA
05-31-95 SEMI-ANNUAL
</LEGEND>
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> NOV-30-1995
<PERIOD-END> MAY-31-1995
<INVESTMENTS-AT-COST> 50,198,257
<INVESTMENTS-AT-VALUE> 51,757,002
<RECEIVABLES> 763,111
<ASSETS-OTHER> 7,898
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 52,528,011
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 83,449
<TOTAL-LIABILITIES> 83,449
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 51,074,824
<SHARES-COMMON-STOCK> 4,922,189
<SHARES-COMMON-PRIOR> 4,972,627
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (189,007)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 1,558,745
<NET-ASSETS> 52,444,562
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 1,511,353
<OTHER-INCOME> 0
<EXPENSES-NET> 166,808
<NET-INVESTMENT-INCOME> 1,344,545
<REALIZED-GAINS-CURRENT> (104,623)
<APPREC-INCREASE-CURRENT> 5,497,050
<NET-CHANGE-FROM-OPS> 6,736,972
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1,344,545)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 4,799,867
<NUMBER-OF-SHARES-REDEEMED> (5,992,525)
<SHARES-REINVESTED> 687,537
<NET-CHANGE-IN-ASSETS> 4,887,306
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (84,384)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 88,195
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 166,808
<AVERAGE-NET-ASSETS> 50,535,727
<PER-SHARE-NAV-BEGIN> 9.56
<PER-SHARE-NII> 0.27
<PER-SHARE-GAIN-APPREC> 1.09
<PER-SHARE-DIVIDEND> (0.27)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 14.35
<PER-SHARE-NAV-END> 10.65
<EXPENSE-RATIO> 0.66
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
