DEAN WITTER MULTI STATE MUNICIPAL SERIES TRUST
NSAR-A, 1997-07-28
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<PAGE>      PAGE  1
000 A000000 05/31/97
000 C000000 0000869427
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 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
007 C011100 11
007 C011200 12
007 C011300 13
007 C011400 14
007 C011500 15
007 C011600 16
007 C011700 17
007 C011800 18
007 C011900 19
007 C012000 20
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 DELETE
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
014 A00AA01 DEAN WITTER REYNOLDS INC.
014 B00AA01 8-14172
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  126
019 C00AA00 DEANWITTER
020 C000001      0
020 C000002      0
020 C000003      0
020 C000004      0
020 C000005      0
020 C000006      0
020 C000007      0
<PAGE>      PAGE  3
020 C000008      0
020 C000009      0
020 C000010      0
021  000000        0
022 A000001 SMITH BARNEY SHEARSON INC.
022 B000001 13-1912900
022 C000001      6200
022 D000001     14025
022 A000002 MORGAN (JP) SECURITIES INC.
022 B000002 13-3224016
022 C000002      9700
022 D000002      8200
022 A000003 MORGAN STANLEY & COMPANY INC.
022 B000003 13-2655998
022 C000003      6600
022 D000003      8000
022 A000004 MERRILL LYNCH PIERCE FENNER & SMITH INC.
022 B000004 13-5674085
022 C000004      7100
022 D000004      5293
022 A000005 PAINE WEBBER INC.
022 B000005 13-2638166
022 C000005      1965
022 D000005      4745
022 A000006 NUVEEN (JOHN) & COMPANY INC.
022 B000006 36-2639476
022 C000006      5000
022 D000006       800
022 A000007 PRUDENTIAL SECURITIES INC.
022 B000007 22-2347336
022 C000007      1866
022 D000007      3009
022 A000008 LEHMAN BROTHERS INC.
022 B000008 13-2518466
022 C000008       600
022 D000008      3500
022 A000009 EDWARDS (AG) SONS INC.
022 B000009 43-0895447
022 C000009         0
022 D000009      3488
022 A000010 SAM REMIREZ & CO.
022 B000010 13-2695511
022 C000010         0
022 D000010      3252
023 C000000      39259
023 D000000      66814
024  00AA00 N
025 D00AA01       0
025 D00AA02       0
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025 D00AA04       0
<PAGE>      PAGE  4
025 D00AA05       0
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026 A000000 N
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026 F000000 N
026 G010000 N
026 G020000 N
026 H000000 N
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034  00AA00 N
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<PAGE>      PAGE  5
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
054 F00AA00 N
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054 H00AA00 Y
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066 A00AA00 N
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<PAGE>      PAGE  6
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<PAGE>      PAGE  7
062 E000100   7.2
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062 O000100  90.4
062 P000100   0.0
062 Q000100   0.0
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063 A000100   0
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064 A000100 Y
064 B000100 N
070 A010100 Y
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070 B020100 N
070 C010100 Y
070 C020100 N
070 D010100 N
070 D020100 N
070 E010100 Y
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
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<PAGE>      PAGE  8
070 Q020100 N
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<PAGE>      PAGE  9
074 H000100        0
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074 S000100        0
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074 U010100     4096
074 U020100        0
074 V010100    10.45
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074 Y000100     1721
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028 A010200      1241
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028 A040200      1699
028 B010200       705
028 B020200       478
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028 C010200       259
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028 D020200       200
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028 E040200      2370
028 F010200       685
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028 G010200      3835
<PAGE>      PAGE  10
028 G020200      1315
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028 G040200     13000
028 H000200      3835
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030 B000200  4.00
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042 G000200   0
042 H000200   0
043  000200     80
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055 A000200 N
055 B000200 N
056  000200 Y
057  000200 N
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062 C000200   0.0
062 D000200   0.0
062 E000200   8.4
062 F000200   0.0
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062 H000200   0.0
062 I000200   0.0
062 J000200   0.0
062 K000200   0.0
062 L000200   0.0
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062 O000200  90.0
062 P000200   0.0
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063 A000200   0
063 B000200 17.0
064 A000200 Y
064 B000200 N
070 A010200 Y
070 A020200 N
070 B010200 N
<PAGE>      PAGE  11
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 N
070 J020200 N
070 K010200 N
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 N
070 Q010200 N
070 Q020200 N
070 R010200 N
070 R020200 N
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<PAGE>      PAGE  12
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073 A010200   0.2738
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074 D000200    93970
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<PAGE>      PAGE  13
074 X000200     2034
074 Y000200     7252
075 A000200        0
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<PAGE>      PAGE  14
044  000300      0
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070 F020300 N
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070 H020300 N
070 I010300 N
070 I020300 N
070 J010300 N
070 J020300 N
070 K010300 N
070 K020300 N
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<PAGE>      PAGE  15
070 M010300 N
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<PAGE>      PAGE  16
073 B000300   0.0000
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<PAGE>      PAGE  17
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062 E000400   8.3
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062 I000400   0.0
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<PAGE>      PAGE  18
062 Q000400   0.0
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070 F020400 N
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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
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<PAGE>      PAGE  19
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<PAGE>      PAGE  20
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<PAGE>      PAGE  21
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<PAGE>      PAGE  22
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<PAGE>      PAGE  23
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<PAGE>      PAGE  24
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<PAGE>      PAGE  25
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<PAGE>      PAGE  26
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<PAGE>      PAGE  27
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<PAGE>      PAGE  28
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<PAGE>      PAGE  29
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<PAGE>      PAGE  30
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<PAGE>      PAGE  31
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<PAGE>      PAGE  32
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<PAGE>      PAGE  33
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<PAGE>      PAGE  34
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<PAGE>      PAGE  35
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<PAGE>      PAGE  36
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<PAGE>      PAGE  37
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<PAGE>      PAGE  38
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070 D011000 N
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<PAGE>      PAGE  40
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SIGNATURE   BARRY FINK                                   
TITLE       VICE PRESIDENT      
 


[ARTICLE] 6
[CIK] 0000869427
[NAME] DEAN WITTER MULTI-STATE-ARIZONA SERIES
[SERIES]
   [NUMBER] 1
   [NAME] DEAN WITTER MULTI-STATE-ARIZONA-5/31/97-SEMI
<TABLE>
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[PERIOD-END]                               MAY-31-1997
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<CIK> 0000869427
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   <NAME> DEAN WITTER MULTI-STATE-CALIFORNIA SERIES-SEMI
       
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