DEAN WITTER MULTI STATE MUNICIPAL SERIES TRUST
N-30D, 1994-08-04
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<PAGE>
                DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
                            Two World Trade Center
                           New York, New York 10048

DEAR SHAREHOLDER:
- - -----------------------------------------------------------------------------

   When DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST began its new fiscal
year on December 1, 1993, most economic indicators were pointing toward a
vigorous recovery. Shortly after the beginning of the year, additional
concerns surfaced regarding increased inflation. The Federal Reserve Board
responded by tightening monetary policy. Between February and April, the
central bank raised the federal-funds rate -- the interest rates that banks
charge each other for over night loans -- from 3.00 percent to 4.25 percent
in four separate moves. In May, the discount rate -- the interest rate the
Federal Reserve Board charges member banks for loans -- was also increased,
by 50 basis points, to 3.50 percent.

   Long-term municipal bond yields, as measured by The Bond Buyer Revenue
Bond Index,* were little changed in December and January. However, in
February and March the Index rose 89 basis points to 6.39 percent. Yields had
reached levels not seen in over a year. Despite 15 to 20 basis point yield
swings during both April and May, the municipal market began to show signs of
stability. The Index closed the period at 6.41 percent.

   The municipal market is also influenced by unique supply and demand
conditions. New-issue underwriting totaled a record $290 billion in 1993. The
pace of new-issue activity in 1994 has slowed to an annual rate of $200
billion. By way of comparison, approximately $200 billion will leave the
market, as bonds mature or are called for redemption. Municipal issuance for
the first five months of 1994 totaled $73 billion, 38 percent below the level
for the comparable period of last year. The 10 states that comprise the
Multi-State Municipal Series Trust issued nearly half of the total volume
thus far in 1994. A continuation of low new-issue supply coupled with
significant bond calls and maturities should sustain investor demand for
municipals. However, the overall direction of interest rates will primarily
be determined by the strength of the economy, the trend of inflation and the
Federal Reserve Board's response to economic conditions.

   The Fund's average short-term investment position gradually increased to
eight percent of net assets as the portfolios adapted to the change in market
direction. The Fund's weighted average maturity ranged from 19 to 22 years.
Call protection was maintained at eight years on average. New purchases
continued to be of investment grade with ratings of "A" or better, as
measured by Moody's Investors Service, Inc. or Standard & Poor's Corp. Credit
quality remained "AA," except for Massachusetts ("A1" or "A+") and New York
("A").

   For your convenience, we have summarized details regarding the various
Series on the following pages. Here you will find information on credit
quality, maturity, call protection, distributions, performance and tax-free
and taxable yields for each portfolio.

   Please note that the Massachusetts, Michigan, Minnesota, New York and Ohio
Series will continue to have expenses in excess of 50 basis points of daily
net assets absorbed by Dean Witter InterCapital Inc. through June 30, 1995.

   We appreciate your ongoing support of DEAN WITTER MULTI-STATE MUNICIPAL
SERIES TRUST and look forward to continuing to serve your investment needs.

                                        Very truly yours,
                                        Charles A. Fiumefreddo
                                        Chairman of the Board

- - ---------------
* The Bond Buyer Revenue Bond Index is an arithmetic average of the yields of
  25 selected municipal revenue bonds with 30-year maturities. Ratings of these
  bonds range from Aa1 to Baa1 by Moody's and AA+ to A- by S&P.


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DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
PORTFOLIO SUMMARY May 31, 1994 (unaudited)
- - -----------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                     ARIZONA       CALIFORNIA       FLORIDA       MASSACHUSETTS
                                     SERIES          SERIES         SERIES           SERIES
                                 -------------  --------------  -------------  -----------------
<S>                              <C>            <C>             <C>            <C>
Credit Ratings(1)
 Aaa or AAA .................... 41%            29%             59%            33%
 Aa or AA ...................... 35%            29%             12%            11%
 A or A ........................ 17%            30%             16%            47%
 Baa or BBB ....................  7%            12%             13%             9%
Average Weighted
 Maturity ...................... 21 Years       22 Years        20 Years       19 Years
 Call Protection ...............  8 Years        8 Years         8 Years        8 Years
 Duration ......................  9 Years       10 Years         9 Years       10 Years
Net Asset Value
 November 30, 1993 ............. $10.72         $11.00          $10.93         $11.08
 May 31, 1994 .................. $10.14         $10.14          $10.38         $10.33
Distributions(2) ............... $0.290492      $0.427885       $0.284015      $0.388600
Total Return(3)
  6 Months ended 5/31/94  ...... (2.78)%        (4.09)%         (2.50)%        (3.39)%
 12 Months ended 5/31/94  ......  1.26 %         0.20 %          1.99 %         1.63 %
Tax Free Yield(4) ..............  5.02 %         5.56 %          5.26 %         5.13 %
Taxable Equivalent Yield(5)  ...  8.43 %        10.34 %          8.22 %         9.11 %

<FN>
- - ---------------
(1)  Represents Moody's or Standard & Poor's ratings of the credit quality of
     the long-term bonds. Non-rated issues are deemed investment grade by the
     Investment Manager.

(2)  Includes all income dividends and capital gain distributions, if any,
     paid by each Fund Series for the six months ended May 31, 1994.

(3)  Total return figures represent the change in the Fund's total value for
     each period measured, taking into account the change in price plus
     compounded, reinvested dividends.

(4)  Yields were calculated for the 30-day period ended May 31, 1994
     following the SEC yield formula.

(5)  Assumes top federal and state income tax brackets, if any, and includes
     the effect of fully deducting state taxes on your federal return.

</TABLE>


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<TABLE>
<CAPTION>
           MICHIGAN       MINNESOTA      NEW JERSEY      NEW YORK                      PENNSYLVANIA
            SERIES         SERIES          SERIES         SERIES       OHIO SERIES        SERIES
        -------------  -------------  --------------  -------------  -------------  ----------------
        <S>            <C>            <C>             <C>            <C>            <C>
        45%            23%            41%             10%            41%            46%
        40%            27%            17%             20%            21%            26%
        11%            41%            25%             49%            30%            16%
         4%             9%            17%             21%             8%            12%

        22 Years       21 Years       21 Years        21 Years       21 Years       20 Years
         8 Years        8 Years        8 Years         8 Years        8 Years        8 Years
        10 Years       10 Years       10 Years        10 Years       10 Years       10 Years

        $11.05         $10.78         $10.94          $11.03         $10.97         $11.01
        $10.24         $10.10         $10.23          $10.28         $10.23         $10.29
        $0.464551      $0.354877      $0.356351       $0.350743      $0.392980      $0.342228

        (3.29)%        (3.12)%        (3.32)%         (3.74)%        (3.31)%        (3.54)%
         1.61 %         1.84 %         0.74 %          0.45 %         1.59 %         1.05 %
         5.39 %         5.27 %         5.41 %          5.34 %         5.31 %         5.34 %
         9.35 %         9.00 %         9.09 %          7.36 %         9.50 %         8.58 %
</TABLE>


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DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
STATEMENT OF ASSETS AND LIABILITIES May 31, 1994 (unaudited)
- - -----------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                                                      ARIZONA       CALIFORNIA       FLORIDA      MASSACHUSETTS
                                                                      SERIES          SERIES         SERIES          SERIES
                                                                  -------------  --------------  -------------  ---------------
<S>                                                               <C>            <C>             <C>            <C>
ASSETS:
Investments in securities, at value (identified cost
 $54,720,528, $128,213,112, $79,284,235, $17,613,782,
 $20,883,593, $11,500,738, $50,333,477, $14,658,345,
 $24,425,700, and $51,770,553, respectively) (Note 1)  .......... $54,912,442    $125,838,163    $80,193,771    $17,451,353
Cash ............................................................     159,503         257,864        334,485        148,777
Receivable for:
 Interest .......................................................   1,248,027       2,235,535      1,189,051        370,615
 Investments sold ...............................................          --              --             --             --
 Shares of beneficial interest sold .............................     104,725         665,973        181,224         79,390
Deferred organizational expenses (Note 1) .......................          --           5,370          5,370          5,370
Prepaid expenses ................................................      12,709           9,660          8,546          2,326
                                                                  -------------  --------------  -------------  ---------------
   TOTAL ASSETS .................................................  56,437,406     129,012,565     81,912,447     18,057,831
                                                                  -------------  --------------  -------------  ---------------
LIABILITIES:
Payable for shares of beneficial interest repurchased  ..........       5,651          18,392         60,142         10,000
Dividends to shareholders .......................................      39,837          97,300         54,012         12,945
Investment management fee payable (Note 2) ......................      17,198          38,989         25,031             --
Plan of distribution fee payable (Note 3) .......................       7,370          16,710         10,728          2,335
Accrued expenses (Note 4) .......................................      20,434          26,332         25,573         17,244
                                                                  -------------  --------------  -------------  ---------------
   TOTAL LIABILITIES ............................................      90,490         197,723        175,486         42,524
                                                                  -------------  --------------  -------------  ---------------
NET ASSETS:
Paid-in-capital .................................................  55,968,519     130,562,207     80,938,077     18,149,039
Accumulated undistributed net realized gain (loss) on
 investments ....................................................     186,483         627,584       (110,652)        28,697
Net unrealized appreciation (depreciation) on investments  ......     191,914      (2,374,949)       909,536       (162,429)
                                                                  -------------  --------------  -------------  ---------------
   NET ASSETS ................................................... $56,346,916    $128,814,842    $81,736,961    $18,015,307
                                                                  =============  ==============  =============  ===============
SHARES OF BENEFICIAL INTEREST OUTSTANDING .......................   5,558,318      12,703,718      7,874,467      1,743,713
                                                                  -------------  --------------  -------------  ---------------
NET ASSET VALUE PER SHARE (unlimited authorized shares of $.01
 par value) .....................................................      $10.14          $10.14         $10.38         $10.33
                                                                  =============  ==============  =============      ===========
MAXMIUM OFFERING PRICE PER SHARE (net asset value plus 4.17% of
 net asset value)* ..............................................      $10.56          $10.56         $10.81         $10.76
                                                                 =============  ==============  =============      ===========
 <FN>
- - ---------------
* On sales of $25,000 or more the offering price is reduced.
</TABLE>


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STATEMENT OF OPERATIONS For the six months ended May 31, 1994 (unaudited)
- - -----------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                                           ARIZONA        CALIFORNIA       FLORIDA       MASSACHUSETTS
                                                            SERIES          SERIES          SERIES          SERIES
                                                       --------------  --------------  --------------  ---------------
<S>                                                    <C>             <C>             <C>             <C>
INVESTMENT INCOME:
 INTEREST INCOME  .................................... $ 1,741,909     $  4,157,264    $ 2,503,231     $   533,137
                                                       --------------  --------------  --------------  ---------------
 EXPENSES
   Investment management fee (Note 2) ................     103,628          239,163        149,106          31,938
   Plan of distribution fee (Note 3) .................      38,792           99,711         59,756          12,687
   Professional fees .................................      12,614           12,879         13,802          12,320
   Transfer agent fees and expenses ..................      12,432           20,295         17,466           4,250
   Registration fees .................................       1,342            1,523          3,864           3,909
   Shareholder reports and notices ...................       1,222            9,759          5,653           1,181
   Trustees' fees and expenses (Note 4) ..............       1,745            4,298          2,717             767
   Organizational expenses (Note 1) ..................          --            1,676          1,676           1,676
   Other .............................................       4,869            7,702          5,927           3,549
                                                       --------------  --------------  --------------  ---------------
    TOTAL EXPENSES BEFORE FEES WAIVED/ASSUMED ........     176,644          397,006        259,967          72,277
  Less: Expenses Waived/Assumed by Investment Manager
       (Note 2)  .....................................      (5,185)          (9,875)        (8,240)        (26,652)
                                                       --------------  --------------  --------------  ---------------
    TOTAL EXPENSES AFTER FEES WAIVED/ASSUMED .........     171,459          387,131        251,727          45,625
                                                       --------------  --------------  --------------  ---------------
     NET INVESTMENT INCOME ...........................   1,570,450        3,770,133      2,251,504         487,512
                                                       --------------  --------------  --------------  ---------------
NET REALIZED AND UNREALIZED GAIN (LOSS) ON
    INVESTMENTS (Note 1):
   Net realized gain (loss) on investments ...........     186,464          629,571         26,028          28,697
   Net change in unrealized appreciation on
    investments  .....................................  (3,495,761)     (10,252,250)    (4,527,655)     (1,141,588)
                                                       --------------  --------------  --------------  ---------------
    NET LOSS ON INVESTMENTS ..........................  (3,309,297)     (9,622,679)     (4,501,627)     (1,112,891)
                                                       --------------  --------------  --------------  ---------------
     NET DECREASE IN NET ASSETS RESULTING FROM
    OPERATIONS  ...................................... $(1,738,847)    $(5,852,546)    $(2,250,123)    $  (625,379)
                                                       ==============  ==============  ==============  ===============
</TABLE>

                      See Notes to Financial Statements


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<PAGE>

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<TABLE>
<CAPTION>
                  MICHIGAN       MINNESOTA     NEW JERSEY      NEW YORK        OHIO         PENNSYLVANIA
                   SERIES         SERIES         SERIES         SERIES        SERIES           SERIES
               -------------  -------------  -------------  -------------  -------------  --------------
               <S>            <C>            <C>            <C>            <C>            <C>
               $20,737,390    $11,373,636    $49,975,892    $14,408,105    $24,187,555    $51,358,833
                   215,729        419,056        111,231        561,953        646,126        107,845
                   334,651        185,348      1,004,743        253,850        399,136        799,644
                        --             --             --         30,746             --             --
                    69,299         55,686         56,457             --      1,065,738         92,278
                     5,370          5,370          5,370          5,370          5,370          5,370
                     1,568          1,359          3,938          4,162          3,148          2,656
               -------------  -------------  -------------  -------------  -------------  --------------
                21,364,007     12,040,455     51,157,631     15,264,186     26,307,073     52,366,626
               -------------  -------------  -------------  -------------  -------------  --------------
                        --             --         76,912        163,780             --         11,618
                    16,160          8,688         38,369         11,007         19,145         42,349
                     2,435             --         15,625             --          2,915         15,878
                     2,771          1,544          6,696          1,985          3,391          6,805
                    17,259         15,501         18,436         16,767         19,357         25,421
               -------------  -------------  -------------  -------------  -------------  --------------
                    38,625         25,733        156,038        193,539         44,808        102,071
               -------------  -------------  -------------  -------------  -------------  --------------
                21,442,802     12,153,829     51,354,522     15,187,436     26,545,589     52,571,579
                    28,783        (12,005)         4,656        133,451        (45,179)       104,696
                  (146,203)      (127,102)      (357,585)      (250,240)      (238,145)      (411,720)
               -------------  -------------  -------------  -------------  -------------  --------------
               $21,325,382    $12,014,722    $51,001,593    $15,070,647    $26,262,265    $52,264,555
               =============  =============  =============  =============  =============  ==============
                 2,083,050      1,189,770      4,986,035      1,466,504      2,566,118      5,080,765
               -------------  -------------  -------------  -------------  -------------  --------------
                    $10.24         $10.10         $10.23         $10.28         $10.23         $10.29
               =============  =============  =============  =============  =============  ==============
                    $10.67         $10.52         $10.66         $10.71         $10.66         $10.72
               =============  =============  =============  =============  =============  ==============
</TABLE>
- - -----------------------------------------------------------------------------
<TABLE>
<CAPTION>
        MICHIGAN      MINNESOTA      NEW JERSEY      NEW YORK        OHIO         PENNSYLVANIA
         SERIES         SERIES         SERIES         SERIES        SERIES           SERIES
     -------------  ------------  --------------  -------------  -------------  --------------
     <S>            <C>           <C>             <C>            <C>            <C>
     $   641,863    $ 341,181     $ 1,598,631     $   479,801    $   736,605    $ 1,592,334
     -------------  ------------  --------------  -------------  -------------  --------------
          38,519       20,596          94,530          27,337         45,110         93,941
          15,559        8,221          38,451          10,899         17,997         39,154
          12,123       11,950          12,292          12,403         12,446         13,801
           6,957        3,255          12,156           3,554          5,843         13,998
           2,848        3,208           3,004           3,926          2,627          4,377
           1,431          798           3,409             912          2,200          4,903
             688          344           1,659             478            782          1,658
           1,676        1,676           1,676           1,676          1,676          1,676
           3,655        3,805           5,116           3,703          4,187          6,314
     -------------  ------------  --------------  -------------  -------------  --------------
          83,456       53,853         172,293          64,888         92,868        179,822
         (28,429)     (24,430)         (6,823)        (25,835)       (28,425)        (8,358)
     -------------  ------------  --------------  -------------  -------------  --------------
          55,027       29,423         165,470          39,053         64,443        171,464
     -------------  ------------  --------------  -------------  -------------  --------------
         586,836      311,758       1,433,161         440,748        672,162      1,420,870
     -------------  ------------  --------------  -------------  -------------  --------------
          28,783      (12,481)          4,648         133,451        (73,505)       104,696
      (1,379,719)    (684,245)     (3,307,326)     (1,177,020)    (1,533,827)    (3,501,511)
     -------------  ------------  --------------  -------------  -------------  --------------
      (1,350,936)    (696,726)     (3,302,678)     (1,043,569)    (1,607,332)    (3,396,815)
     -------------  ------------  --------------  -------------  -------------  --------------
     $  (764,100)   $(384,968)    $(1,869,517)    $  (602,821)   $  (935,170)   $(1,975,945)
     =============  ============  ==============  =============  =============  ==============
</TABLE>


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DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
STATEMENT OF CHANGES IN NET ASSETS
- - -----------------------------------------------------------------------------

For the six months ended May 31, 1994 (unaudited) and for the
 year ended November 30, 1993

<TABLE>
<CAPTION>
                                                           ARIZONA SERIES               CALIFORNIA SERIES
                                                   ----------------------------  ------------------------------
                                                        1994           1993            1994            1993
                                                   -------------  -------------  --------------  --------------
<S>                                                <C>            <C>            <C>             <C>
INCREASE (DECREASE) IN NET ASSETS:
  Operations:
   Net investment income ......................... $ 1,570,450    $ 2,722,937    $  3,770,133    $  6,666,613
   Net realized gain (loss) on investments .......     186,464         65,305         629,571       1,828,533
   Net change in unrealized appreciation on
    investments  .................................  (3,495,761)     2,294,142     (10,252,250)      5,043,740
                                                   -------------  -------------  --------------  --------------
    Net increase (decrease) in net assets
   resulting   from operations  ..................  (1,738,847)     5,082,384      (5,852,546)     13,538,886
                                                   -------------  -------------  --------------  --------------
  Dividends and distributions to shareholders
   from:
   Net investment income .........................  (1,570,450)    (2,722,937)     (3,770,133)     (6,666,613)
   Net realized gain on investments ..............     (65,291)       (67,643)     (1,748,963)        -0-
                                                   -------------  -------------  --------------  --------------
    Total dividends and distributions ............  (1,635,741)    (2,790,580)     (5,519,096)     (6,666,613)
                                                   -------------  -------------  --------------  --------------
  Transactions in shares of beneficial interest:
   Net proceeds from sales .......................   5,406,644     22,564,062      11,385,909      48,338,423
   Reinvestment of dividends and distributions ...     867,853      1,500,480       3,254,357       3,677,922
   Cost of shares repurchased ....................  (6,430,200)    (5,291,203)    (13,762,274)    (15,184,188)
                                                   -------------  -------------  --------------  --------------
    Net increase (decrease) from transactions
     in shares of beneficial interest  ...........    (155,703)    18,773,339         877,992      36,832,157
                                                   -------------  -------------  --------------  --------------
    Total increase (decrease) ....................  (3,530,291)    21,065,143     (10,493,650)     43,704,430
                                                   -------------  -------------  --------------  --------------
NET ASSETS:
  Beginning of period ............................  59,877,207     38,812,064     139,308,492      95,604,062
                                                   -------------  -------------  --------------  --------------
  End of period .................................. $56,346,916    $59,877,207    $128,814,842    $139,308,492
                                                   =============  =============  ==============  ==============
  UNDISTRIBUTED NET INVESTMENT INCOME ............     -0-            -0-             -0-             -0-
                                                   =============  =============  ==============  ==============
   SHARES ISSUED AND REPURCHASED
   Sold ..........................................     506,707      2,131,173       1,059,152       4,447,920
   Issued in reinvestment of dividends and
    distributions  ...............................      82,512        137,235         302,166         337,857
   Repurchased ...................................    (614,113)      (497,023)     (1,318,775)     (1,386,260)
                                                   -------------  -------------  --------------  --------------
    Net increase (decrease) ......................     (24,894)     1,771,385          42,543       3,399,517
                                                   =============  =============  ==============  ==============
</TABLE>

                      See Notes to Financial Statements


<PAGE>

         
<PAGE>

- - -----------------------------------------------------------------------------

<TABLE>
<CAPTION>
                       FLORIDA SERIES              MASSACHUSETTS SERIES            MICHIGAN SERIES
               -----------------------------  ----------------------------  ----------------------------
                    1994            1993           1994           1993           1994           1993
               -------------  --------------  -------------  -------------  -------------  -------------
               <S>            <C>             <C>            <C>            <C>            <C>
               $ 2,251,504    $  3,864,162    $   487,512    $   811,547    $   586,836    $ 1,041,459
                    26,028         (90,829)        28,697        170,860         28,783        372,036
                (4,527,655)      3,872,974     (1,141,588)       702,398     (1,379,719)       668,110
               -------------  --------------  -------------  -------------  -------------  -------------
                (2,250,123)      7,646,307       (625,379)     1,684,805       (764,100)     2,081,605
               -------------  --------------  -------------  -------------  -------------  -------------
                (2,251,504)     (3,864,162)      (487,512)      (811,547)      (586,836)    (1,041,459)
                   -0-             -0-           (167,917)       -0-           (363,656)       -0-
               -------------  --------------  -------------  -------------  -------------  -------------
                (2,251,504)     (3,864,162)      (655,429)      (811,547)      (950,492)    (1,041,459)
               -------------  --------------  -------------  -------------  -------------  -------------
                10,016,127      38,837,248      1,770,025      7,996,169      2,144,912      9,813,691
                   756,275       1,348,313        395,506        483,311        570,486        532,420
                (9,027,929)    (11,033,570)    (1,212,996)    (1,122,022)    (1,758,851)    (3,112,259)
               -------------  --------------  -------------  -------------  -------------  -------------
                 1,744,473      29,151,991        952,535      7,357,458        956,547      7,233,852
               -------------  --------------  -------------  -------------  -------------  -------------
                (2,757,154)     32,934,136       (328,273)     8,230,716       (758,045)     8,273,998
               -------------  --------------  -------------  -------------  -------------  -------------
                84,494,115      51,559,979     18,343,580     10,112,864     22,083,427     13,809,429
               -------------  --------------  -------------  -------------  -------------  -------------
               $81,736,961    $ 84,494,115    $18,015,307    $18,343,580    $21,325,382    $22,083,427
               =============  ==============  =============  =============  =============  =============
                   -0-             -0-            -0-            -0-            -0-            -0-
               =============  ==============  =============  =============  =============  =============
                   924,304       3,630,055        173,427        738,427        221,872        905,219
                    70,493         124,856         26,031         44,231         29,563         48,831
                  (853,545)     (1,030,156)      (111,615)      (103,229)      (166,187)      (282,640)
               -------------  --------------  -------------  -------------  -------------  -------------
                   141,252       2,724,755         87,843        679,429         85,248        671,410
               =============  ==============  =============  =============  =============  =============
</TABLE>


<PAGE>

         
<PAGE>

DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
STATEMENT OF CHANGES IN NET ASSETS (continued)
- - -----------------------------------------------------------------------------

For the six months ended May 31, 1994 (unaudited) and for the
 year ended November 30, 1993

<TABLE>
<CAPTION>
                                                          MINNESOTA SERIES             NEW JERSEY SERIES
                                                   ----------------------------  ----------------------------
                                                        1994           1993           1994           1993
                                                   -------------  -------------  -------------  -------------
<S>                                                <C>            <C>            <C>            <C>
INCREASE (DECREASE) IN NET ASSETS:
  Operations:
   Net investment income ......................... $   311,758    $   477,218    $ 1,433,161    $ 2,457,868
   Net realized gain (loss) on investments .......     (12,481)        83,885          4,648        387,875
   Net change in unrealized appreciation on
    investments  .................................    (684,245)       405,648     (3,307,326)     1,901,754
                                                   -------------  -------------  -------------  -------------
    Net increase (decrease) in net assets
   resulting   from operations  ..................    (384,968)       966,751     (1,869,517)     4,747,497
                                                   -------------  -------------  -------------  -------------
  Dividends and distributions to shareholders
   from:
   Net investment income .........................    (311,758)      (477,218)    (1,433,161)    (2,457,868)
   Net realized gain on investments ..............     (83,885)       -0-           (387,878)      (102,249)
                                                   -------------  -------------  -------------  -------------
    Total dividends and distributions ............    (395,643)      (477,218)    (1,821,039)    (2,560,117)
                                                   -------------  -------------  -------------  -------------
  Transactions in shares of beneficial interest:
   Net proceeds from sales .......................   1,410,945      5,407,008      5,111,957     24,886,881
   Reinvestment of dividends and distributions ...     256,367        299,804      1,092,004      1,515,250
   Cost of shares repurchased ....................    (409,870)    (1,078,183)    (6,010,786)    (6,213,958)
                                                   -------------  -------------  -------------  -------------
    Net increase from transactions in shares
     of beneficial interest  .....................   1,257,442      4,628,629        193,175     20,188,173
                                                   -------------  -------------  -------------  -------------
    Total increase (decrease) ....................     476,831      5,118,162     (3,497,381)    22,375,553
                                                   -------------  -------------  -------------  -------------
NET ASSETS:
  Beginning of period ............................  11,537,891      6,419,729     54,498,974     32,123,421
                                                   -------------  -------------  -------------  -------------
  End of period .................................. $12,014,722    $11,537,891    $51,001,593    $54,498,974
                                                   =============  =============  =============  =============
  UNDISTRIBUTED NET INVESTMENT INCOME ............     -0-            -0-            -0-            -0-
                                                   =============  =============  =============  =============
  SHARES ISSUED AND REPURCHASED
   Sold ..........................................     134,574        508,636        473,328      2,304,312
   Issued in reinvestment of dividends and
    distributions  ...............................      24,339         28,188        101,782        139,917
   Repurchased ...................................     (39,558)      (101,542)      (569,960)      (568,527)
                                                   -------------  -------------  -------------  -------------
    Net increase .................................     119,355        435,282          5,150      1,875,702
                                                   =============  =============  =============  =============
</TABLE>

                      See Notes to Financial Statements


<PAGE>

         
<PAGE>

- - -----------------------------------------------------------------------------

<TABLE>
<CAPTION>
                      NEW YORK SERIES                 OHIO SERIES               PENNSYLVANIA SERIES
               ----------------------------  ----------------------------  ----------------------------
                    1994           1993           1994           1993           1994           1993
               -------------  -------------  -------------  -------------  -------------  -------------
               <S>            <C>            <C>            <C>            <C>            <C>
               $   440,748    $   756,167    $   672,162    $ 1,053,017    $ 1,420,870    $ 2,391,963
                   133,451        113,747        (73,505)       284,378        104,696        309,721
                (1,177,020)       644,644     (1,533,827)       899,509     (3,501,511)     2,036,444
               -------------  -------------  -------------  -------------  -------------  -------------
                  (602,821)     1,514,558       (935,170)     2,236,904     (1,975,945)     4,738,128
               -------------  -------------  -------------  -------------  -------------  -------------
                  (440,748)      (756,167)      (672,162)    (1,053,017)    (1,420,870)    (2,391,963)
                   (66,664)       -0-           (259,067)       -0-           (292,250)       -0-
               -------------  -------------  -------------  -------------  -------------  -------------
                  (507,412)      (756,167)      (931,229)    (1,053,017)    (1,713,120)    (2,391,963)
               -------------  -------------  -------------  -------------  -------------  -------------
                 1,809,948      6,741,928      8,377,136     13,971,307      4,632,402     25,600,361
                   268,820        394,629        437,918        683,533        962,715      1,286,285
                (1,852,491)    (1,544,324)    (5,535,501)    (4,675,125)    (3,019,080)    (7,364,381)
               -------------  -------------  -------------  -------------  -------------  -------------
                   226,277      5,592,233      3,279,553      9,979,715      2,576,037     19,522,265
               -------------  -------------  -------------  -------------  -------------  -------------
                  (883,956)     6,350,624      1,413,154     11,163,602     (1,113,028)    21,868,430
               -------------  -------------  -------------  -------------  -------------  -------------
                15,954,603      9,603,979     24,849,111     13,685,509     53,377,583     31,509,153
               -------------  -------------  -------------  -------------  -------------  -------------
               $15,070,647    $15,954,603    $26,262,265    $24,849,111    $52,264,555    $53,377,583
               =============  =============  =============  =============  =============  =============
                   -0-            -0-            -0-            -0-            -0-            -0-
               =============  =============  =============  =============  =============  =============
                   170,840        622,018        789,082      1,294,674        426,879      2,354,473
                    21,302         36,119         41,213         63,065         89,478        118,104
                  (172,060)      (140,708)      (528,518)      (427,972)      (284,203)      (671,934)
               -------------  -------------  -------------  -------------  -------------  -------------
                    20,082        517,429        301,777        929,767        232,154      1,800,643
               =============  =============  =============  =============  =============  =============
</TABLE>


<PAGE>

         
<PAGE>

- - -----------------------------------------------------------------------------

DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
NOTES TO FINANCIAL STATEMENTS (unaudited)
- - -----------------------------------------------------------------------------

1. ORGANIZATION AND ACCOUNTING POLICIES -- Dean Witter Multi-State Municipal
Series Trust (the "Fund") is registered under the Investment Company Act of
1940, as amended (the "Act"), as a non-diversified, open-end management
investment company.

The Fund, organized on October 29, 1990, as a Massachusetts business trust,
is comprised of ten separate Series (the "Series") and commenced operations
as follows:

<TABLE>
<CAPTION>
                       COMMENCEMENT OF
       SERIES             OPERATIONS
- - ------------------  --------------------
<S>                 <C>
Arizona ...........   April 30, 1991
California ........ January 15, 1991
Florida ........... January 15, 1991
Massachusetts ..... January 15, 1991
Michigan .......... January 15, 1991
Minnesota ......... January 15, 1991
New Jersey ........ January 15, 1991
New York .......... January 15, 1991
Ohio .............. January 15, 1991
Pennsylvania ...... January 15, 1991
</TABLE>

The following is a summary of significant accounting policies:

   A. Valuation of Investments -- Portfolio securities are valued for the
Fund by an outside independent pricing service approved by the Fund's
Trustees. The pricing service has informed the Fund that in valuing the
Fund's portfolio securities, it uses both a computerized grid matrix of
tax-exempt securities and evaluations by its staff, in each case based on
information concerning market transactions and quotations from dealers which
reflect the bid side of the market each day. The Fund's portfolio securities
are thus valued by reference to a combination of transactions and quotations
for the same or other securities believed to be comparable in quality,
coupon, maturity, type of issue, call provisions, trading characteristics and
other features deemed to be relevant.

   B. Accounting for Investments -- Security transactions are accounted for
on the trade date (date the order to buy or sell is executed). Realized gains
and losses on security transactions are determined on the identified cost
method. Interest income is accrued daily. In determining net investment
income, the Fund amortizes premiums and accrues original issue discounts.
Additionally with respect to market discount on bonds purchased after April
30, 1993, a portion of any capital gain realized upon disposition is
recharacterized as taxable investment income.

   C. Federal Income Tax Status -- It is the Fund's policy to comply
individually for each Series with the requirements of the Internal Revenue
Code applicable to regulated investment companies and to distribute all of
its taxable and nontaxable income to its shareholders. Accordingly, no
federal income tax provision is required.

   D. Dividends and Distributions to Shareholders -- The Fund records
dividends and distributions to its shareholders on the record date. The
amount of dividends and distributions from net investment income and net
realized capital gains are determined in accordance with federal income tax
regulations which may differ from generally accepted accounting principles.
These "book/tax" differences are either considered temporary or permanent in
nature. To the extent these differences are permanent in nature, such amounts
are reclassified within the capital accounts based on their federal tax-basis
treatment; temporary differences do not require reclassification. Dividends
and distributions which exceed net investment income and net realized capital
gains for financial


<PAGE>

         
<PAGE>

DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
NOTES TO FINANCIAL STATEMENTS (unaudited) (continued)
- - -----------------------------------------------------------------------------

reporting purposes but not for tax purposes are reported as dividends in
excess of net investment income or distributions in excess of net realized
capital gains. To the extent they exceed net investment income and net
realized capital gains for tax purposes, they are reported as distributions
of paid-in-capital.

   E. Organizational Expenses -- The Fund's Investment Manager paid the
organizational expenses of the Fund of approximately $204,000 of which the
Fund has agreed to bear and reimburse the Investment Manager for $150,000 of
such costs ($16,667 for each of the initial Series excluding the Arizona
Series). The Fund has deferred and is amortizing such reimbursed expenses by
the straight-line method over a period not to exceed five years from the
commencement of operations.

2. TRANSACTIONS WITH THE INVESTMENT MANAGER -- Pursuant to an Investment
Management Agreement (the "Agreement") with Dean Witter InterCapital Inc.
(the "Investment Manager"), each Series of the Fund pays its Investment
Manager a management fee, calculated and accrued daily and payable monthly,
by applying the annual rate of 0.35% to the daily net assets of each Series.

   Under the terms of the Agreement, in addition to managing the Fund's
investments, the Investment Manager maintains certain of the Fund's books and
records and furnishes office space and facilities, equipment, clerical,
bookkeeping and certain legal services, and pays the salaries of all
personnel, including officers of the Fund who are employees of the Investment
Manager. The Investment Manager also bears the cost of telephone services,
heat, light, power and other utilities provided to the Fund.

   The Investment Manager undertook to assume all expenses (except for 12b-1
fees and brokerage fees) that exceed 0.50% of the daily net assets with
respect to each Series of the Fund through December 31, 1993 and with respect
to Massachusetts, Michigan, Minnesota, New York and Ohio Series for the
period January 1, 1994 through June 30, 1995.

   The management fees waived and other expenses assumed by the Investment
Manager for the period ended May 31, 1994 were as follows:

<TABLE>
<CAPTION>
                   ARIZONA    CALIFORNIA    FLORIDA    MASSACHUSETTS    MICHIGAN
                 ---------  ------------  ---------  ---------------  ----------
<S>              <C>        <C>           <C>        <C>              <C>
Management Fees    $5,185     $9,875        $8,240     $26,652          $28,429
Other Expenses      -0-        -0-           -0-         -0-              -0-

<CAPTION>
                   MINNESOTA    NEW JERSEY    NEW YORK     OHIO      PENNSYLVANIA
                 -----------  ------------  ----------  ---------  --------------
<S>              <C>          <C>           <C>         <C>        <C>
Management Fees    $20,596      $6,823        $25,835     $28,425    $8,358
Other Expenses     $ 3,834       -0-            -0-         -0-        -0-

</TABLE>

3. PLAN OF DISTRIBUTION -- Dean Witter Distributors Inc. (the "Distributor"),
an affiliate of the Investment Manager, is the distributor of the Fund's
shares and, in accordance with a Plan of Distribution (the "Plan") pursuant
to Rule 12b-1 under the Act, finances certain expenses in connection
therewith.

   Under the Plan, the Distributor bears the expense of all promotional and
distribution related activities on behalf of the Fund, except for expenses
that the Trustees determine to reimburse, as described below. The following
activities and services may be provided by the Distributor, Dean Witter
Reynolds Inc. ("DWR"), an affiliate of the Distributor, its affiliates and
other dealers who have entered into selected dealer agreements with the
Distributor ("Selected Broker-Dealers") under the Plan: (1) compensation to
and expenses of DWR's and other Selected Broker-Dealers' account executives
and other employees, including overhead and telephone expenses; (2) sales
incentives and bonuses to sales representatives and to marketing personnel in
connection with promoting sales of the Fund's shares; (3) expenses incurred
in connection with promoting sales of the Fund's shares; (4) preparing and
distributing sales literature; and (5) providing advertising and promotional
activities, including direct mail solicitation and television, radio,
newspaper, magazine and other media advertisements.


<PAGE>

         
<PAGE>
DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
NOTES TO FINANCIAL STATEMENTS (unaudited) (continued)
- - -----------------------------------------------------------------------------
   The Fund is authorized to reimburse the Distributor for specific expenses
the Distributor incurs or plans to incur in promoting the distribution of the
Fund's shares. The amount of each monthly reimbursement payment may in no
event exceed an amount equal to a payment at the annual rate of 0.15% of the
Fund's average daily net assets during the month. For the six months ended
May 31, 1994, the distribution fees were accrued at the following annual
rates:
<TABLE>
<CAPTION>
                  ARIZONA    CALIFORNIA    FLORIDA    MASSACHUSETTS    MICHIGAN
                ---------  ------------  ---------  ---------------  ----------
<S>              <C>          <C>           <C>         <C>          <C>
ANNUAL RATE  ..   0.13%       0.15%         0.14%        0.14%          0.14%

<CAPTION>
                  MINNESOTA    NEW JERSEY    NEW YORK    OHIO     PENNSYLVANIA
                -----------  ------------  ----------  -------  --------------
<S>              <C>          <C>           <C>         <C>          <C>
ANNUAL RATE  ..   0.14%       0.14%         0.14%        0.14%        0.15%

</TABLE>

   For the same period, the Distributor has informed the Fund that it
received commissions from the sale of the Fund's shares of beneficial
interest. Such commissions are not an expense of the Fund; they are deducted
from the proceeds of the sales of the shares of beneficial interest and the
amounts were as follows:
<TABLE>
<CAPTION>
                  ARIZONA     CALIFORNIA    FLORIDA     MASSACHUSETTS    MICHIGAN
                ----------  ------------  ----------  ---------------  ----------
<S>              <C>          <C>           <C>         <C>           <C>
COMMISSIONS  .. $164,423       $334,370      $304,795    $60,626       $76,791

<CAPTION>
                  MINNESOTA    NEW JERSEY    NEW YORK      OHIO      PENNSYLVANIA
                -----------  ------------  ----------  ----------  --------------
<S>              <C>          <C>           <C>         <C>          <C>
COMMISSIONS  .. $47,808        $186,227      $64,783     $121,177     $161,901

</TABLE>

4. SECURITY TRANSACTIONS AND TRANSACTIONS WITH AFFILIATES -- The cost of
purchases and the proceeds from sales of portfolio securities, excluding
short-term investments, for the six months ended May 31, 1994 were as
follows:
<TABLE>
<CAPTION>
                ARIZONA      CALIFORNIA      FLORIDA      MASSACHUSETTS     MICHIGAN
             ------------  -------------  ------------  ---------------  ------------
<S>          <C>           <C>            <C>           <C>              <C>
Purchases  . $5,843,716    $ 7,241,560    $2,405,840    $1,085,490       $1,456,170
Sales ...... $8,042,012    $15,184,042    $6,690,437    $2,023,827       $  660,465
<CAPTION>
               MINNESOTA     NEW JERSEY     NEW YORK        OHIO       PENNSYLVANIA
             ------------  ------------  ------------  ------------  --------------
<S>          <C>           <C>           <C>           <C>           <C>
Purchases  . $1,017,265    $2,356,500    $1,434,181    $4,359,550    $8,183,450
Sales ...... $  349,845    $3,213,917    $2,625,869    $1,510,296    $4,065,867
</TABLE>

   Dean Witter Trust Company, an affiliate of the Investment Manager and
Distributor, is the Fund's transfer agent. For the six months ended May 31,
1994, each of the Series had transfer agent fees and expenses payable as
follows:
<TABLE>
<CAPTION>
                       ARIZONA    CALIFORNIA    FLORIDA    MASSACHUSETTS    MICHIGAN
                     ---------  ------------  ---------  ---------------  ----------
<S>                  <C>          <C>           <C>         <C>           <C>
Transfer Agent Fees
 and Expenses
 Payable ...........   $2,658      $3,074        $4,406      $977           $506
<CAPTION>
                       MINNESOTA    NEW JERSEY    NEW YORK    OHIO    PENNSYLVANIA
                     -----------  ------------  ----------  ------  --------------
<S>                  <C>          <C>           <C>         <C>        <C>
Transfer Agent Fees
 and Expenses
 Payable ...........   $502         $120          $703        $753       $2,878
</TABLE>

<PAGE>

         
<PAGE>

DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
NOTES TO FINANCIAL STATEMENTS (unaudited) (continued)
- - -----------------------------------------------------------------------------

   Effective January 1, 1994, the Fund adopted an unfunded noncontributory
defined benefit pension plan covering all Trustees of the Fund who will have
served as an independent Trustee for at least five years at the time of
retirement. Benefits under this plan are based on years of service and
compensation during the last five years of service. Aggregate pension costs
for the six months ended May 31, 1994, included in Trustees' fees and
expenses in the Statement of Operations and the accrued pension liability
included in accrued expenses in the Statement of Assets and Liabilities for
each of the respective Series were as follows:

<TABLE>
<CAPTION>
                     ARIZONA    CALIFORNIA    FLORIDA    MASSACHUSETTS    MICHIGAN
                   ---------  ------------  ---------  ---------------  ----------
<S>                <C>        <C>           <C>        <C>              <C>
Aggregate Pension
 Costs ........... $610        $1,404         $876         $189             $226
Accrued Pension
 Liability .......  $606       $1,395         $870         $189             $226
<CAPTION>
                     MINNESOTA    NEW JERSEY    NEW YORK    OHIO    PENNSYLVANIA
                   -----------  ------------  ----------  ------  --------------
<S>                <C>          <C>           <C>         <C>     <C>
Aggregate Pension
 Costs ...........  $123         $551          $161        $270      $553
Accrued Pension
 Liability .......  $123         $548          $161        $270      $550
</TABLE>


<PAGE>

         
<PAGE>

DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
NOTES TO FINANCIAL STATEMENTS (unaudited) (continued)
- - -----------------------------------------------------------------------------

5. FEDERAL INCOME TAX STATUS -- At November 30, 1993, the following Series
had approximate net capital loss carryovers which may be used to offset
future capital gains to the extent provided by regulations:

<TABLE>
<CAPTION>

AVAILABLE THROUGH NOVEMBER 30,    1999      2000       2001       TOTAL
                                --------  ---------  ---------  ---------
<S>                             <C>       <C>        <C>        <C>
FLORIDA ....................... $8,400    $28,800    $94,000    $131,200

</TABLE>

   Capital losses incurred after October 31 within the taxable year are
deemed to arise on the first business day of the Fund's next taxable year.
The Florida Series incurred and will elect to defer a net capital loss of
approximately $5,400 during fiscal 1993. To the extent that this net capital
loss carryover is used to offset future capital gains, it is probable that
the gains so offset will not be distributed to shareholders. For the six
months ended May 31, 1994, the Florida Series had net capital gains of
approximately $26,000.

   At November 30, 1993, the primary reason for significant temporary
book/tax differences for each of the respective Series was dividends payable.


<PAGE>

         
<PAGE>

DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
FINANCIAL HIGHLIGHTS (unaudited)
- - -----------------------------------------------------------------------------

Selected ratios and per share data for a share of beneficial interest
outstanding throughout each period:

<TABLE>
<CAPTION>
                                                                 ARIZONA SERIES
                                            --------------------------------------------------
                                               1994***           1993       1992       1991**
                                            ------------      ---------  ---------  ----------
<S>                                         <C>               <C>        <C>        <C>
PER SHARE OPERATING PERFORMANCE:
 Net asset value, beginning of period  .... $    10.72        $   10.18  $    9.77  $     9.60
                                            ------------      ---------  ---------  ----------
   Net investment income  .................       0.28             0.58       0.64        0.36
   Net realized and unrealized gain (loss)
     on investments .......................      (0.57)            0.56       0.41        0.17
                                            ------------      ---------  ---------  ----------
  Total from investment operations ........      (0.29)            1.14       1.05        0.53
                                            ------------      ---------  ---------  ----------

  Less dividends and distributions:
   Dividends from net investment income  ..      (0.28)           (0.58)     (0.64)      (0.36)
   Distributions from net realized gain on
     investments ..........................      (0.01)           (0.02)      -0-        -0-
                                            ------------      ---------  ---------  ----------
  Total dividends and distributions .......      (0.29)           (0.60)     (0.64)      (0.36)
                                            ------------      ---------  ---------  ----------
  Net asset value, end of period .......... $    10.14        $   10.72  $   10.18  $     9.77
                                            ============      =========  =========  ==========
TOTAL INVESTMENT RETURN+ ..................      (2.78)%(1)       11.42%     11.08%       5.66%(1)
RATIOS/SUPPLEMENTAL DATA:
  Net assets, end of period
   (in thousands) ......................... $56,347           $59,877    $38,812    $20,733
  Ratios to average net assets: (3)
   Total expenses  ........................       0.58%(2)       0.48%       0.15%       0.15%(2)
   Net investment income  .................       5.30%(2)       5.40%       6.33%       6.32%(2)
  Portfolio turnover rate .................         10%             5%         15%          8%

<FN>
- - ---------------
*   January 15, 1991 (commencement of operations) through November 30, 1991.
**  April 30, 1991 (commencement of operations) through November 30, 1991.
*** December 1, 1993 through May 31, 1994.
+   Does not reflect the deduction of sales load.
(1) Not annualized.
(2) Annualized.
(3) If the Fund had borne all its expenses that were assumed or waived by
    the Investment Manager, the above ratios to average net assets, after
    application of the Fund's expense limitation, would have been:

</TABLE>

<TABLE>
<CAPTION>
   <S>                      <C>         <C>      <C>      <C>
   Total expenses .......   0.60%(2)    0.65%    0.74%    1.43%(2)
   Net investment income.   5.29%(2)    5.22%    5.74%    5.04%(2)
</TABLE>

                      See Notes to Financial Statements


<PAGE>

         
<PAGE>

- - -----------------------------------------------------------------------------

<TABLE>
<CAPTION>
                CALIFORNIA SERIES                                    FLORIDA SERIES
- - ------------------------------------------------    -----------------------------------------------
   1994***        1993       1992        1991*         1994***        1993       1992       1991*
- - ------------  ----------  ---------  -----------    ------------  ----------  ---------  ----------
<S>           <C>         <C>        <C>          <C>           <C>        <C>        <C>
$11.00        $    10.32  $    9.99  $    9.60     $   10.93      $  10.29 $      9.88   $     9.60
- - ------------  ----------  ---------  -----------   ------------    ---------  ---------  ----------
  0.29              0.61       0.67       0.60          0.28          0.59        0.64         0.55

 (0.72)             0.68       0.34       0.39         (0.55)         0.64        0.41         0.28
- - ------------  ----------  ---------  -----------   ------------    ---------  ---------  ----------
 (0.43)             1.29       1.01       0.99         (0.27)         1.23        1.05         0.83
- - ------------  ----------  ---------  -----------   ------------    ---------  ---------  ----------

 (0.29)            (0.61)     (0.67)     (0.60)        (0.28)        (0.59)      (0.64)       (0.55)

 (0.14)           -0-         (0.01)     -0-            -0-           -0-        -0-        -0-
- - ------------  ----------  ---------  -----------   ------------    ---------  ---------  ----------
 (0.43)            (0.61)     (0.68)     (0.60)        (0.28)         (0.59)      (0.64)      (0.55)
- - ------------  ----------  ---------  -----------   ------------    ---------  ---------  ----------
$10.14        $    11.00  $   10.32  $    9.99     $   10.38       $  10.93   $   10.29  $     9.88
============  ==========  =========  ===========   ============    =========  =========  ==========
 (4.09)%(1)        12.77%     10.23%      10.29%(1)     (2.50)%(1)     12.20%     10.92%       8.84%(1)

$128,815        $139,308    $95,604     $41,568       $81,737        $84,494    $51,560     $17,719

   0.57%(2)         0.48%      0.15%       0.15%(2)      0.59%(2)       0.48%      0.15%       0.15%(2)
   5.52%(2)         5.57%      6.36%       6.53%(2)      5.29%(2)       5.39%      6.19%       6.45%(2)
      5%              11%         5%         24%            3%             3%         6%         10%

   0.58%(2)         0.60%      0.67%       0.97%(2)      0.61%(2)       0.63%       0.73%      1.27%(2)
   5.50%(2)         5.45%      5.84%       5.71%(2)      5.27%(2)       5.23%       5.62%      5.33%(2)

</TABLE>


<PAGE>

         
<PAGE>

DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
FINANCIAL HIGHLIGHTS (unaudited) (continued)
- - -----------------------------------------------------------------------------

Selected ratios and per share data for a share of beneficial interest
outstanding throughout each period:

<TABLE>
<CAPTION>
                                                          MASSACHUSETTS SERIES
                                            ------------------------------------------------
                                                1994***       1993       1992        1991*
                                            ------------   ---------  ----------   ---------
<S>                                         <C>           <C>        <C>        <C>
PER SHARE OPERATING PERFORMANCE:
 Net asset value, beginning of period  .... $    11.08      $  10.36   $    9.98   $    9.60
                                            ------------    ---------  ---------   ----------
   Net investment income  .................       0.29          0.60        0.66        0.54
   Net realized and unrealized gain (loss)
     on investments .......................      (0.65)         0.72        0.42        0.38
                                            ------------    ---------  ---------   ----------
  Total from investment operations ........      (0.36)         1.32        1.08        0.92
                                            ------------    ---------  ---------   ----------

  Less dividends and distributions:
   Dividends from net investment income  ..      (0.29)        (0.60)      (0.66)      (0.54)
   Distributions from net realized gain on
     investments ..........................      (0.10)        -0-         (0.04)      -0-
                                            ------------    ---------  ---------   ----------
  Total dividends and distributions .......      (0.39)        (0.60)      (0.70)      (0.54)
                                            ------------    ---------  ---------   ----------
  Net asset value, end of period .......... $    10.33      $  11.08   $   10.36   $    9.98
                                            ============    =========  =========   ==========
TOTAL INVESTMENT RETURN+ ..................      (3.39)%(1)     13.06%     11.19%       9.87%(1)
RATIOS/SUPPLEMENTAL DATA:
  Net assets, end of period ...............
   (in thousands) .........................    $18,015        $18,344    $10,113      $3,205
  Ratios to average net assets: (3)
   Total expenses  ........................      0.50%(2)       0.48%      0.14%       0.15%(2)
   Net investment income  .................      5.34%(2)       5.47%      6.26%       6.50%(2)
  Portfolio turnover rate .................         6%            12%        10%         40%

<FN>
- - ---------------
*   January 15, 1991 (commencement of operations) through November 30, 1991.
*** December 1, 1993 through May 31, 1994.
+   Does not reflect the deduction of sales load.
(1) Not annualized.
(2) Annualized.
(3) If the Fund had borne all its expenses that were assumed or waived by
    the Investment Manager, the above ratios to average net assets, after
    application of the Fund's expense limitation, would have been:

</TABLE>

<TABLE>
<CAPTION>
<S>                    <C>         <C>      <C>      <C>
 Total expenses .......0.79%(2)    0.84%    1.25%    2.50%(2)
Net investment income  5.05%(2)    5.10%    5.16%    4.08%(2)
</TABLE>

                      See Notes to Financial Statements


<PAGE>

         
<PAGE>

- - -----------------------------------------------------------------------------

<TABLE>
<CAPTION>
                          MICHIGAN SERIES                                MINNESOTA SERIES
          ------------------------------------------------    ------------------------------------------------
             1994***         1993       1992       1991*         1994***         1993       1992      1991*
          ------------    ---------  ---------  ----------    ------------    ---------   --------  ----------
          <S>           <C>        <C>        <C>         <C>           <C>        <C>       <C>
          $    11.05      $   10.41  $    9.96  $    9.60     $   10.78    $      10.11   $   9.79  $    9.60
          ------------    ---------  ---------  ----------    ------------    ---------   --------  ----------
                0.28           0.61       0.65       0.54          0.28            0.58       0.63       0.51
               (0.63)          0.64       0.46       0.36         (0.60)           0.67       0.32       0.19
          ------------    ---------  ---------  ----------    ------------    ---------   --------  ----------
               (0.35)          1.25       1.11       0.90         (0.32)           1.25       0.95       0.70
          ------------    ---------  ---------  ----------    ------------    ---------   --------  ----------
               (0.28)         (0.61)     (0.65)     (0.54)        (0.28)          (0.58)     (0.63)     (0.51)
               (0.18)        -0-         (0.01)     -0-           (0.08)          -0-        -0-         -0-
          ------------    ---------  ---------  ----------    ------------    ---------   --------  ----------
               (0.46)         (0.61)     (0.66)     (0.54)         (0.36)         (0.58)     (0.63)     (0.51)
          ------------    ---------  ---------  ----------    ------------    ---------   --------  ----------
          $    10.24      $   11.05  $   10.41  $    9.96     $    10.10      $   10.78   $  10.11  $    9.79
          ============    =========  =========  ==========    ============    =========   ========  ==========
               (3.29)%(1)     12.28%     11.78%      9.54%(1)      (3.12)%(1)     12.64%      9.91%      7.42%(1)
             $21,325        $22,083    $13,809     $6,630        $12,015        $11,538    $ 6,420  $   3,131
                0.50%(2)       0.48%      0.14%      0.15%(2)       0.50%(2)       0.48%      0.14%      0.15%(2)
                5.33%(2)       5.53%      6.28%      6.54%(2)       5.30%(2)       5.39%      6.16%      6.04%(2)
                   3%            15%         9%        46%             3%             8%        23%         4%
                0.76%(2)       0.80%      1.01%      1.73%(2)       0.92%(2)       1.04%      1.46%      2.50%(2)
                5.07%(2)       5.20%      5.42%      4.96%(2)       4.88%(2)       4.83%      4.85%      2.87%(2)
</TABLE>


<PAGE>

         
<PAGE>

DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
FINANCIAL HIGHLIGHTS (unaudited) (continued)
- - -----------------------------------------------------------------------------

Selected ratios and per share data for a share of beneficial interest
outstanding throughout each period:

<TABLE>
<CAPTION>
                                                           NEW JERSEY SERIES
                                            -------------------------------------------------
                                               1994***         1993       1992       1991*
                                            ------------     ---------  ---------  ----------
<S>                                         <C>             <C>        <C>        <C>
PER SHARE OPERATING PERFORMANCE:
 Net asset value, beginning of period  .... $    10.94       $   10.35  $    9.95  $     9.60
                                            ------------     ---------  ---------  ----------
   Net investment income  .................       0.28            0.60       0.66        0.55
   Net realized and unrealized gain (loss)
     on investments .......................      (0.63)           0.62       0.44        0.35
                                            ------------     ---------  ---------  ----------
  Total from investment operations ........      (0.35)           1.22       1.10        0.90
                                            ------------     ---------  ---------  ----------

  Less dividends and distributions:
   Dividends from net investment income  ..      (0.28)          (0.60)     (0.66)      (0.55)
   Distributions from net realized gain on
     investments ..........................      (0.08)          (0.03)     (0.04)       -0-
                                            ------------     ---------  ---------  ----------
  Total dividends and distributions .......      (0.36)          (0.63)     (0.70)      (0.55)
                                            ------------     ---------  ---------  ----------
  Net asset value, end of period .......... $    10.23       $   10.94  $   10.35  $     9.95
                                            ============     =========  =========  ==========
TOTAL INVESTMENT RETURN+ ..................      (3.32)%(1)      12.03%     11.34%       9.59%(1)
RATIOS/SUPPLEMENTAL DATA:
  Net assets, end of period ...............
   (in thousands) .........................    $51,002         $54,499    $32,123     $15,812
  Ratios to average net assets: (3)
   Total expenses  ........................       0.61%(2)       0.48%       0.15%       0.15%(2)
   Net investment income  .................       5.31%(2)       5.41%       6.36%       6.43%(2)
  Portfolio turnover rate .................          5%             7%         19%         36%
<FN>
- - ---------------
*   January 15, 1991 (commencement of operations) through November 30, 1991.
*** December 1, 1993 through May 31, 1994.
+   Does not reflect the deduction of sales load.
(1) Not annualized.
(2) Annualized.
(3) If the Fund had borne all its expenses that were assumed or waived by
    the Investment Manager, the above ratios to average net assets, after
    application of the Fund's expense limitation, would have been:

</TABLE>
<TABLE>
<CAPTION>
<S>                    <C>         <C>      <C>      <C>
Total expenses ....... 0.64%(2)    0.69%    0.79%    1.21%(2)
Net investment income. 5.28%(2)    5.20%    5.71%    5.36%(2)
</TABLE>

                      See Notes to Financial Statements


<PAGE>

         
<PAGE>

- - -----------------------------------------------------------------------------

<TABLE>
<CAPTION>
                 NEW YORK SERIES                                           OHIO SERIES
- - -------------------------------------------------    -------------------------------------------------
   1994***          1993       1992       1991*         1994***        1993        1992        1991*
- - ------------     ---------  --------  -----------    ------------    ---------   ---------  ----------
<S>             <C>        <C>       <C>            <C>             <C>          <C>        <C>
$    11.03       $   10.34  $  10.06  $   9.60       $    10.97      $   10.25   $    9.85  $    9.60
- - ------------     ---------  --------  -----------    ------------    ---------   ---------  ----------
      0.30            0.62      0.68      0.54             0.28           0.60        0.66       0.53

     (0.70)           0.69      0.34      0.46            (0.63)          0.72        0.41       0.25
- - ------------     ---------  --------  -----------    ------------    ---------   ---------  ----------
     (0.40)           1.31      1.02       1.00           (0.35)          1.32        1.07       0.78
- - ------------     ---------  --------  -----------    ------------    ---------   ---------  ----------

     (0.30)          (0.62)    (0.68)     (0.54)          (0.28)         (0.60)      (0.66)     (0.53)

     (0.05)           -0-      (0.06)      -0-            (0.11)        -0-          (0.01)      -0-
- - ------------     ---------  --------  -----------    ------------    ---------   ---------  ----------
     (0.35)          (0.62)    (0.74)     (0.54)          (0.39)         (0.60)      (0.67)     (0.53)
- - ------------     ---------  --------  -----------    ------------    ---------   ---------  ----------
$    10.28       $   11.03  $  10.34  $   10.06      $    10.23      $   10.97   $   10.25  $    9.85
============     =========  ========  ===========    ============    =========   =========  ==========
     (3.74)%(1)      12.91%    10.35%     10.73%(1)       (3.31)%(1)     13.19%      11.12%      8.35%(1)

   $15,071         $15,955    $9,604     $3,976         $26,262        $24,849     $13,686     $6,267

      0.50%(2)        0.48%     0.15%      0.15%(2)        0.50%(2)       0.48%       0.15%      0.15%(2)
      5.64%(2)        5.61%     6.45%      6.44%(2)        5.22%(2)       5.45%       6.41%      6.38%(2)
        10%             11%       21%        51%              6%            20%         23%        22%
      0.83%(2)        0.88%     1.23%      2.22%(2)        0.72%(2)       0.78%       1.01%      2.04%(2)
      5.31%(2)        5.21%     5.37%      4.37%(2)        4.99%(2)       5.14%       5.56%      4.48%(2)
</TABLE>


<PAGE>

         
<PAGE>

DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
FINANCIAL HIGHLIGHTS (unaudited) (continued)
- - -----------------------------------------------------------------------------

Selected ratios and per share data for a share of beneficial interest
outstanding throughout each period:

<TABLE>
<CAPTION>
                                                            PENNSYLVANIA SERIES
                                           --------------------------------------------------
                                              1994***         1993        1992       1991*
<S>                                        <C>             <C>        <C>         <C>
PER SHARE OPERATING PERFORMANCE:  Net
 asset value, beginning of period  ....... $    11.01      $   10.34   $    9.90   $     9.60
                                           ------------    ---------   ---------   ----------
  Net investment income ..................       0.28           0.61        0.66         0.53
  Net realized and unrealized gain (loss)
   on investments ........................      (0.66)          0.67        0.44         0.30
                                           ------------    ---------   ---------   ----------
 Total from investment operations  .......      (0.38)          1.28        1.10         0.83
                                           ------------    ---------   ---------   ----------

 Less dividends and distributions:
  Dividends from net investment income  ..      (0.28)         (0.61)      (0.66)       (0.53)
  Distributions from net realized gain
   on investments ........................      (0.06)         -0-        -0-           -0-
                                           ------------    ---------   ---------   ----------
 Total dividends and distributions  ......      (0.34)         (0.61)      (0.66)       (0.53)
                                           ------------    ---------   ---------   ----------
 Net asset value, end of period .......... $    10.29      $   11.01   $   10.34   $     9.90
                                           ============    =========   =========   ==========
TOTAL INVESTMENT RETURN+ .................      (3.54)%(1)     12.64%      11.47%        8.77%(1)
RATIOS/SUPPLEMENTAL DATA: Net assets, end
 of period (in thousands) ................    $52,265        $53,378     $31,509      $12,147
 Ratios to average net assets: (3)
  Total expenses .........................       0.64%(2)       0.48%       0.15%       0.15%(2)
  Net investment income ..................       5.29%(2)       5.54%       6.31%       6.46%(2)
 Portfolio turnover rate .................          8%             5%          3%         12%

<FN>
- - ---------------
*   January 15, 1991 (commencement of operations) through November 30, 1991.
*** December 1, 1993 through May 31, 1994.
+   Does not reflect the deduction of sales load.
(1) Not annualized.
(2) Annualized.
(3) If the Fund had borne all its expenses that were assumed or waived by
    the Investment Manager, the above ratios to average net assets, after
    application of the Fund's expense limitation, would have been:

</TABLE>

<TABLE>
<CAPTION>
  <S>                    <C>         <C>      <C>      <C>
Total expenses .......   0.67%(2)    0.68%    0.81%    1.54%(2)
Net investment income.   5.26%(2)    5.33%    5.65%    5.07%(2)
</TABLE>

                      See Notes to Financial Statements


<PAGE>

         
<PAGE>

DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
PORTFOLIO OF INVESTMENTS -- ARIZONA SERIES May 31, 1994 (unaudited)
- - -----------------------------------------------------------------------------

<TABLE>
<CAPTION>
 PRINCIPAL
 AMOUNT (IN                                                                             COUPON   MATURITY
 THOUSANDS)                                                                              RATE      DATE       VALUE
- - -----------                                                                           -------- ---------- ------------
<C>         <S>                                                                       <C>      <C>        <C>
            ARIZONA EXEMPT MUNICIPAL BONDS (92.0%)
            GENERAL OBLIGATION (7.1%)
$  200      Chandler, Sierra Vista Refg Ser 1991 (FGIC Insured) ......................7.00  %   7/ 1/12   $  216,428
            Phoenix,
 1,250       Refg Ser 1993 A .........................................................5.25      7/ 1/12    1,138,313
 1,550       Refg Ser 1992 ...........................................................6.375     7/ 1/13    1,618,417
 1,000      Tucson Unified School District #1, Impr 1989 Ser D 1992 (FGIC Insured)  ..6.10      7/ 1/11    1,010,420
- - -----------                                                                                               ------------
 4,000                                                                                                     3,983,578
- - -----------                                                                                               ------------
            EDUCATIONAL FACILITIES REVENUE (5.3%)
 1,000      Arizona Board of Regents, Arizona State University Ser 1992 A  ...........5.50      7/ 1/19      912,630
 1,000      Price-Elliot Research Park Inc, Arizona State University Ser 1991 (MBIA
             Insured) ................................................................7.00      7/ 1/21    1,050,590
 1,000      University of Arizona, Telecommunications Ser 1991 COPs ..................6.50      7/15/12    1,034,360
- - -----------                                                                                               ------------
 3,000                                                                                                     2,997,580
- - -----------                                                                                               ------------
            ELECTRIC REVENUE (5.5%)
   725      Arizona Power Authority, Hoover Uprating Refg 1993 Ser (MBIA Insured)  ...5.25     10/ 1/17      640,567
            Salt River Project Agricultural Improvement & Power District,
 1,000       Refg Ser C ..............................................................6.25      1/ 1/27      994,400
 1,500       1991 Ser A ..............................................................6.00      1/ 1/31    1,439,970
- - -----------                                                                                               ------------
 3,225                                                                                                     3,074,937
- - -----------                                                                                               ------------
            HOSPITAL REVENUE (9.2%)
            Arizona Health Facilities Authority,
 1,150       Phoenix Baptist Hospital & Medical Center Ser 1992 (MBIA Insured)  ......6.25      9/ 1/11    1,169,216
   700       Phoenix Memorial Hospital Refg Ser 1991 .................................8.20      6/ 1/21      747,782
   300       Voluntary Hospital Federation Pooled 1985 Ser B (FGIC Insured)  .........7.25     10/ 1/13      324,753
 2,000      Maricopa County Industrial Development Authority, Catholic Healthcare
             West 1992 Ser A (MBIA Insured) ..........................................5.75      7/ 1/11    1,948,980
 1,100      Pima County Industrial Development Authority, Health Care Corp 1993 Ser
             (MBIA Insured) ..........................................................5.25      7/ 1/13      990,770
- - -----------                                                                                               ------------
 5,250                                                                                                     5,181,501
- - -----------                                                                                               ------------
            INDUSTRIAL DEVELOPMENT/POLLUTION CONTROL REVENUE (9.9%)
 1,000      Greenlee County Industrial Development Authority, Phelps Dodge Corp  .....5.45      6/ 1/09      930,200
 2,000      Mohave County Industrial Development Authority, Citizens Utilities Co Ser
             1993 (AMT) ..............................................................5.80     11/15/28    1,916,740
 1,000      Navajo County Pollution Control Corporation, Public Service Co Ser 1993 A
             (AMBAC Insured) .........................................................5.50      8/15/28      897,080
 1,700      Santa Cruz County Industrial Development Authority, Citizens Utilities Co
             Ser 1991 (AMT) ..........................................................7.15      2/ 1/23    1,812,268
- - -----------                                                                                               ------------
 5,700                                                                                                     5,556,288
- - -----------                                                                                               ------------
            MORTGAGE REVENUE -- MULTI-FAMILY (1.8%)
   985      Pima County Industrial Development Authority, Rancho Mirage Ser 1992
- - -----------  (AMT) (Asset Guaranty Insured) ..........................................7.05      4/ 1/22    1,042,110
                                                                                                          ------------
            MORTGAGE REVENUE -- SINGLE FAMILY (2.4%)
            Maricopa County Industrial Development Authority,
   665       1991 Ser A ..............................................................7.375     8/ 1/05      685,209
   675       1991 Ser A ..............................................................7.50      8/ 1/12      694,251
- - -----------                                                                                               ------------
 1,340                                                                                                     1,379,460
- - -----------                                                                                               ------------
            PUBLIC FACILITIES REVENUE (3.2%)
            Arizona,
   500       Refg Ser 1992 B COPs (AMBAC Insured) ....................................6.25      9/ 1/10      510,940
   500       Ser 1991 COPs (FSA Insured) .............................................6.25      9/ 1/11      508,355
   700      Puerto Rico Infrastructure Financing Authority, Special Tax Ser 1988 A  ..7.90      7/ 1/07      772,128
- - -----------                                                                                               ------------
 1,700                                                                                                     1,791,423
- - -----------                                                                                               ------------


<PAGE>

         
<PAGE>
<CAPTION>
DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
PORTFOLIO OF INVESTMENTS -- ARIZONA SERIES May 31, 1994 (unaudited) (continued)
- - -----------------------------------------------------------------------------------------------------------------

 PRINCIPAL
 AMOUNT (IN                                                                             COUPON   MATURITY
 THOUSANDS)                                                                              RATE      DATE       VALUE
- - -----------                                                                           -------- ---------- ------------
<C>         <S>                                                                       <C>      <C>        <C>
            TRANSPORTATION FACILITIES REVENUE (19.9%)
            Arizona Transportation Board,
$ 1,500      Sub Highway Ser 1991 A (Prerefunded) ....................................6.50 %    7/ 1/11   $ 1,634,700
  1,000      Sub Highway Ser 1992 B (Prerefunded) ....................................6.50      7/ 1/11     1,091,380
            Phoenix, Street & Highway
  2,000      User Refg Ser 1993 ......................................................5.125     7/ 1/11     1,789,840
  1,000      User Ser 1992 ...........................................................6.25      7/ 1/11     1,065,160
  2,000     Phoenix Civic Improvement Corporation, Airport Terminal Excise Tax Ser
             1989 (AMT) ..............................................................7.80      7/ 1/11     2,174,400
    800     Scottsdale, Street & Highway User Refg Ser 1993 ..........................5.50      7/ 1/07       783,888
  1,000     Tucson, Street & Highway User Sr Lien Refg Ser 1993 ......................5.50      7/ 1/09       946,020
  2,000     Puerto Rico Highway & Transportation Authority, Refg Ser X  ..............5.25      7/ 1/21     1,705,740
- - -----------                                                                                               ------------
 11,300                                                                                                    11,191,128
- - -----------                                                                                               ------------
            WATER & SEWER REVENUE (27.7%)
  1,000     Arizona Wastewater Management Authority, Wastewater Treatment Financial
             Assistance Ser 1992 A (AMBAC Insured) ...................................5.95      7/ 1/12       995,540
            Central Arizona Water Conservation District,
      5      Ser 1991 B ..............................................................6.50     11/ 1/11         5,106
  1,495      Ser 1991 B (Prerefunded) ................................................6.50     11/ 1/11     1,627,577
            Chandler, Water & Sewer
    750      Refg Ser 1991 (FGIC Insured) ............................................7.00      7/ 1/12       816,180
  1,000      Refg Ser 1992 (FGIC Insured) ............................................6.25      7/ 1/13     1,017,870
  1,000     Gilbert, Water & Wastewater Refg Ser 1992 (FGIC Insured) .................6.50      7/ 1/22     1,031,190
  1,000     Phoenix, Water Refg Ser 1993 .............................................5.50      7/ 1/22       903,670
            Phoenix Civic Improvement Corporation, Wastewater
  1,000      Refg Ser 1993 ...........................................................5.00      7/ 1/18       833,430
  2,000      Jr Lien Ser 1994 ........................................................5.45      7/ 1/19     1,807,900
  2,000      Refg Ser 1993 ...........................................................4.75      7/ 1/23     1,562,420
    500     Pima County, Sewer Refg Ser 1991 (FGIC Insured) ..........................6.75      7/ 1/15       531,470
  2,200     Tuscon, Water Refg Ser 1991 ..............................................6.50      7/ 1/16     2,268,244
  2,000     Puerto Rico Aqueduct & Sewer Authority, 1988 A ...........................7.90      7/ 1/07     2,213,840
- - -----------                                                                                               ------------
 15,950                                                                                                    15,614,437
- - -----------                                                                                               ------------
 52,450     TOTAL MUNICIPAL BONDS (IDENTIFIED COST $51,620,528)                                            51,812,442
- - -----------                                                                                               ------------
            SHORT-TERM ARIZONA EXEMPT MUNICIPAL OBLIGATIONS (5.5%)
  1,000     Maricopa County Industrial Development Authority, Samaritan Health Ser
             B-2 (MBIA Insured) (Tender 6/1/94) ......................................3.00*    12/ 1/08     1,000,000
  2,100     Phoenix, Ser 1994-1 (Tender 6/1/94) ......................................3.00*     6/ 1/18     2,100,000
- - -----------                                                                                               ------------
  3,100     TOTAL SHORT-TERM ARIZONA EXEMPT MUNICIPAL OBLIGATIONS (IDENTIFIED COST
             $3,100,000) .............................................................                      3,100,000
- - -----------                                                                                               ------------
$55,550     TOTAL INVESTMENTS (IDENTIFIED COST $54,720,528)(A) .......................         97.5%       54,912,442
===========
            CASH AND OTHER ASSETS IN EXCESS OF LIABILITIES ...........................          2.5         1,434,474
                                                                                              -----       ------------
            NET ASSETS ...............................................................        100.0%      $56,346,916
                                                                                              =====       ============
<FN>
- - ---------------
*   Variable or floating rate security. Coupon rate shown reflects current
    rate.
(a) The aggregate cost for federal income tax purposes is $54,720,528; the
    aggregate gross unrealized appreciation is $1,639,994 and the gross
    unrealized depreciation is $1,448,080, resulting in net unrealized
    appreciation of $191,914.

</TABLE>

                      See Notes to Financial Statements


<PAGE>

         
<PAGE>
DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
PORTFOLIO OF INVESTMENTS -- CALIFORNIA SERIES May 31, 1994 (unaudited)
- - -----------------------------------------------------------------------------

<TABLE>
<CAPTION>
 PRINCIPAL
 AMOUNT (IN                                                                           COUPON   MATURITY
 THOUSANDS)                                                                            RATE      DATE        VALUE
- - -----------                                                                         -------- ---------- -------------
<C>         <S>                                                                     <C>      <C>        <C>
            CALIFORNIA EXEMPT MUNICIPAL BONDS (92.2%)
            GENERAL OBLIGATION (4.3%)
$ 2,000     California, Various Purpose (FSA Insured) ..............................5.50 %    4/ 1/19   $ 1,800,260
            Mojave Water Agency,
  1,100      Impr Dist M Morongo Basin Pipeline Ser 1992 ...........................6.60      9/ 1/13     1,096,282
  2,700      Impr Dist M Morongo Basin Pipeline Ser 1992 ...........................6.60      9/ 1/22     2,619,027
- - -----------                                                                                             -------------
  5,800                                                                                                   5,515,569
- - -----------                                                                                             -------------
            EDUCATIONAL FACILITIES REVENUE (15.1%)
            California Educational Facilities Authority,
  4,500      Carnegie Institution of Washington 1993 Ser A .........................5.60     10/ 1/23     4,069,530
  3,700      Claremont Colleges Ser 1992 ...........................................6.375     5/ 1/22     3,645,166
  2,000      Loyola Marymount University Refg Ser 1992 .............................6.00     10/ 1/14     1,935,960
  2,000      University of San Francisco Ser 1992 ..................................6.40     10/ 1/17     1,973,540
  2,500      University of Southern California Ser 1993 B ..........................5.80     10/ 1/15     2,393,650
  2,000     California Public Works Board, California State University 1992 Ser A...6.70     10/ 1/17     2,034,020
  4,000     University of California, Multiple Purpose Refg 1993 Ser C (AMBAC
             Insured) ..............................................................5.125     9/ 1/18     3,414,920
- - -----------                                                                                             -------------
 20,700                                                                                                  19,466,786
- - -----------                                                                                             -------------
            ELECTRIC REVENUE (9.3%)
  2,000     Kings River Conservation District, Pine Power Ser D ....................6.00      1/ 1/17     1,942,120
  3,000     Los Angeles Department of Water & Power, Refg Issue of 1993  ...........5.375     9/ 1/23     2,595,270
  1,750     Northern California Power Agency, Geothermal #3 1993 Refg Ser 3  .......5.85      7/ 1/10     1,686,353
  4,300     Southern California Public Power Authority, Mead -- Phoenix Inverse
             Floaters (AMBAC Insured) ..............................................7.27+     7/ 1/15     3,198,125
  2,090      Multiple Proj 1989 Ser ................................................6.00      7/ 1/18     1,975,656
    500     Turlock Irrigation District, 1991 Cap Impr COPs ........................7.30      1/ 1/11       528,730
- - -----------                                                                                             -------------
 13,640                                                                                                  11,926,254
- - -----------                                                                                             -------------
            HOSPITAL REVENUE (14.0%)
  1,000     Berkeley, Alta Bates Medical Center Refg Ser A .........................6.50     12/ 1/11       961,670
            California Health Facilities Financing Authority,
  3,000      Catholic Health Corp Ser 1992 (MBIA Insured) ..........................6.00      7/ 1/13     2,957,940
  3,150      Downey Community Hospital Ser 1993 ....................................5.75      5/15/15     2,796,066
  2,000      Kaiser Permanente 1983 Ser ............................................5.45     10/ 1/13     1,784,620
  4,500      Scripps Memorial Hospitals Ser 1992 A (MBIA Insured) ..................6.375    10/ 1/22     4,538,430
            California Statewide Communities Development Authority,
  2,000      Cedars Sinai Medical Center Ser 1992 COPs .............................6.50      8/ 1/12     2,036,140
  1,000      Sutter Health Obligated Group COPs (AMBAC Insured) ....................6.125     8/15/22       986,000
  2,000     Duarte, City of Hope National Medical Center COPs ......................6.00      4/ 1/08     1,930,620
- - -----------                                                                                             -------------
 18,650                                                                                                  17,991,486
- - -----------                                                                                             -------------
            INDUSTRIAL DEVELOPMENT/POLLUTION CONTROL REVENUE (3.2%)
            California Pollution Control Financing Authority,
  1,000      Pacific Gas & Electric Co 1992 Ser A (AMT) ............................6.625     6/ 1/09     1,009,080
  1,000      Southern California Edison Co 1988 Ser A (AMT) ........................6.90      9/ 1/06     1,044,420
  1,000      Southern California Edison Co 1992 Ser B (AMT) ........................6.40     12/ 1/24       992,030
  1,050     San Diego, San Diego Gas & Electric 1986 Ser B (AMT) ...................7.375    12/ 1/21     1,115,247
- - -----------                                                                                             -------------
  4,050                                                                                                   4,160,777
- - -----------                                                                                             -------------
            MORTGAGE REVENUE--MULTI-FAMILY (2.0%)
            California Housing Finance Agency,
  2,000      Rental II 1992 Ser B ..................................................6.70      8/ 1/15     2,023,240
    500      1991 Ser A (AMT) (MBIA Insured) .......................................7.20      2/ 1/26       515,130
- - -----------                                                                                             -------------
  2,500                                                                                                   2,538,370
- - -----------                                                                                             -------------


<PAGE>

         
<PAGE>
<CAPTION>
DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
PORTFOLIO OF INVESTMENTS -- CALIFORNIA SERIES May 31, 1994 (unaudited) (continued)
- - -----------------------------------------------------------------------------------------------------------------

 PRINCIPAL
 AMOUNT (IN                                                                           COUPON   MATURITY
 THOUSANDS)                                                                            RATE      DATE        VALUE
- - -----------                                                                         -------- ---------- -------------
<C>         <S>                                                                     <C>      <C>        <C>
            MORTGAGE REVENUE--SINGLE FAMILY (2.6%)
            California Housing Finance Agency,
$   490      Home 1991 Ser B (AMT) .................................................7.55 %    8/ 1/20   $   495,812
  1,130      Home 1991 C (AMT) (MBIA Insured) ......................................7.00      8/ 1/23     1,168,318
            Southern California Home Financing Authority,
    145      GNMA & FNMA-Backed 1991 Issue A (AMT) .................................7.35      9/ 1/24       149,982
  1,500     Puerto Rico Housing Finance Corporation, Portfolio One GNMA-Backed
             Ser C .................................................................6.85     10/15/23     1,538,355
- - -----------                                                                                             -------------
  3,265                                                                                                   3,352,467
- - -----------                                                                                             -------------

            PUBLIC FACILITIES REVENUE (6.9%)
  1,000     Los Angeles County, 1991 Master Refg COPs RIBS .........................9.934+    5/ 1/15     1,007,500
  2,000     Nevada County, Western Nevada County Solid Waste Management 1991  ......7.50      6/ 1/21     2,039,240
  2,000     San Jose Financing Authority, Convention Center Refg 1993 Ser C  .......6.375     9/ 1/13     2,004,580
  2,700     Torrance, Police Facility Refg 1991 COPs ...............................6.80      7/ 1/12     2,747,277
  1,000     Puerto Rico Infrastructure Financing Authority, Special Tax Ser 1988 A  7.90      7/ 1/07     1,103,040
- - -----------                                                                                             -------------
  8,700                                                                                                   8,901,637
- - -----------                                                                                             -------------

            TAX ALLOCATION (4.1%)
  1,000     Industry Urban-Development Agency, Transportation-Distribution Ind
             Redev Proj #3 1992 Refg ...............................................6.90     11/ 1/16     1,037,070
  1,000     Riverside County Redevelopment Agency, Proj #4 1991 Ser A  .............7.50     10/ 1/26     1,037,850
  3,000     Rosemead Redevelopment Agency, Proj #1 Ser 1993 A ......................5.50     10/ 1/18     2,642,100
    500     Victorville Redevelopment Agency, Bear Valley Road Ser 1991
             (Prerefunded) .........................................................7.50     11/ 1/16       575,485
- - -----------                                                                                             -------------
  5,500                                                                                                   5,292,505
- - -----------                                                                                             -------------

            TRANSPORTATION FACILITIES REVENUE (11.4%)
  4,000     Los Angeles County Metropolitan Transportation Authority, Sales Tax
             Refg Ser 1993-A (MBIA Insured) ........................................5.625     7/ 1/18     3,681,240
  2,000     Los Angeles County Transportation Commission, Sales Tax Ser 1991-B  ....6.50      7/ 1/13     2,042,420
  1,000     Orange County, Airport Refg Ser 1993 (AMT) (MBIA Insured)  .............5.50      7/ 1/18       892,960
  1,000     San Diego County Regional Transportation Commission, Sales Tax 1991 Ser
             A (ETM) ...............................................................6.00      4/ 1/08     1,033,190
  1,000     San Francisco Airports Commission, San Francisco Intl Airport Second
             Ser Refg Issue 4 (MBIA Insured) .......................................6.00      5/ 1/20       971,790
  1,000     San Francisco Bay Area Rapid Transit District, Sales Tax Ser 1991 (FGIC
             Insured) ..............................................................6.60      7/ 1/12     1,031,580
  2,500     Santa Clara Transit District, Sales Tax 1991 Ser A .....................6.25      6/ 1/21     2,471,075
  3,000     Puerto Rico Highway & Transportation Authority, Refg Ser X  ............5.25      7/ 1/21     2,558,610
- - -----------                                                                                             -------------
 15,500                                                                                                  14,682,865
- - -----------                                                                                             -------------
            WATER & SEWER REVENUE (18.7%)
  1,000     Alameda County Water District, 1992 COPs (MBIA Insured) ................6.20      6/ 1/13     1,005,130
            California Department of Water Resources,
  1,000      Central Valley Ser J-2 ................................................6.00     12/ 1/20       971,600
  2,000      Central Valley Ser K ..................................................6.00     12/ 1/21     1,929,620
  2,000     Central Coast Water Authority, Ser 1992 (AMBAC Insured) ................6.50     10/ 1/14     2,045,060
  1,000     Contra Costa Water Authority, Water 1992 Ser E (AMBAC Insured)  ........6.25     10/ 1/12     1,028,580
  3,000     East Bay Municipal Utility District, Water Refg Ser 1992  ..............6.00      6/ 1/20     2,893,020
  3,250     Los Angeles County Sanitation Districts Financing Authority, 1993 Ser A 5.25     10/ 1/10     2,972,840
            Los Angeles, Wastewater
  2,000      Refg Ser 1993-A (MBIA Insured) ........................................5.70      6/ 1/20     1,861,940
  1,000      1991 Ser C ............................................................7.10      6/ 1/18     1,051,060
  2,000     San Diego County Water Authority, Ser 1991-B COPs CARS (MBIA Insured)  .9.220+    4/ 8/21     1,977,500
  2,000     San Francisco Public Utilities Commission, Water 1992 Refg Ser A  ......6.00     11/ 1/15     1,955,100


<PAGE>

         
<PAGE>
<CAPTION>
DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
PORTFOLIO OF INVESTMENTS -- CALIFORNIA SERIES May 31, 1994 (unaudited) (continued)
- - -----------------------------------------------------------------------------------------------------------------
 PRINCIPAL
 AMOUNT (IN                                                                           COUPON   MATURITY
 THOUSANDS)                                                                            RATE      DATE        VALUE
- - -----------                                                                         -------- ---------- -------------
<C>         <S>                                                                     <C>      <C>        <C>
$  2,000    West Basin Municipal Water District, Reclamation Ser 1991 COPs
             (Prerefunded) .........................................................7.00 %    8/ 1/11   $  2,228,020
   2,000    Puerto Rico Aqueduct & Sewer Authority, Ser 1988 A .....................7.90      7/ 1/07      2,213,840
- - -----------                                                                                             -------------
  24,250                                                                                                  24,133,310
- - -----------                                                                                             -------------

            OTHER REVENUE (0.6%)
     750    Rancho-Santa Margarita Community Facilities District #86-2,
- - -----------  Ser A of 1990 .........................................................7.65      8/15/17        776,137
                                                                                                        -------------
 123,305    TOTAL MUNICIPAL BONDS (IDENTIFIED COST $121,113,112) ...................                     118,738,163
- - -----------                                                                                             -------------
            SHORT-TERM CALIFORNIA EXEMPT MUNICIPAL OBLIGATIONS (5.5%)
   2,500    California Statewide Communities Development Authority, House Ear
             Institute 1993 Ser A COPs (Tender 6/1/94) .............................3.00*    12/ 1/18      2,500,000
   2,600    Newport Beach, Hoag Memorial Hospital Presbyterian Ser 1992 (Tender
             6/1/94) ...............................................................3.25*    10/ 1/22      2,600,000
   2,000    Sacramento County, Administration Center & Courthouse Ser 1990 COPs
             (Tender 6/1/94) .......................................................2.65*     6/ 1/20      2,000,000
- - -----------                                                                                             -------------
   7,100    TOTAL SHORT TERM CALIFORNIA EXEMPT MUNICIPAL OBLIGATIONS (IDENTIFIED
             COST $7,100,000) ......................................................                       7,100,000
- - -----------                                                                                             -------------
$130,405    TOTAL INVESTMENTS (IDENTIFIED COST $128,213,112) (A) ...................        97.7%        125,838,163
===========
            CASH AND OTHER ASSETS IN EXCESS OF LIABILITIES .........................         2.3           2,976,679
                                                                                           -----        -------------
            NET ASSETS .............................................................       100.0%       $128,814,842
                                                                                           =====        =============
<FN>
- - ---------------
+   Current coupon rate for residual interest bonds. This rate resets
    periodically as the auction rate on the related short-term securities
    fluctuates.
*   Variable or floating rate securities. Coupon rate shown reflects current
    rate.
(a) The aggregate cost for federal income tax purposes is $128,213,112;
    the aggregate gross unrealized appreciation is $2,182,436, and the
    aggregate gross unrealized depreciation is $4,557,385, resulting in net
    unrealized depreciation of $2,374,949.
</TABLE>
                      See Notes to Financial Statements


<PAGE>

         
<PAGE>

DEAN WITTER MULTI-STATE--MUNICIPAL SERIES TRUST
PORTFOLIO OF INVESTMENTS -- FLORIDA SERIES May 31, 1994 (unaudited)
- - -----------------------------------------------------------------------------

<TABLE>
<CAPTION>
 PRINCIPAL
 AMOUNT (IN                                                                                COUPON   MATURITY
 THOUSANDS)                                                                                 RATE      DATE       VALUE
- - -----------                                                                              -------- ---------- ------------
<C>         <S>                                                                          <C>      <C>        <C>
            FLORIDA EXEMPT MUNICIPAL BONDS (91.0%)
            GENERAL OBLIGATION (3.8%)
$   200     Florida Board of Education, Cap Outlay Ser 1989 A Refg ......................7.25 %    6/ 1/23   $   222,425
  2,000     Guam, Ser 1993 A ............................................................5.375    11/15/13     1,767,560
  1,000     Puerto Rico, Pub Impr Ser 1991 (Prerefunded) ................................7.30      7/ 1/20     1,137,160
- - -----------                                                                                                  ------------
  3,200                                                                                                        3,127,145
- - -----------                                                                                                  ------------
            ELECTRIC REVENUE (11.4%)
    500     Jacksonville Beach, Utility Ser 1991 (MBIA Insured) (Prerefunded)  ..........6.75     10/ 1/20       555,260
  2,500     Jacksonville Electric Authority, St Johns River Power Park Issue Ser 7  .....5.50     10/ 1/14     2,329,050
            Orlando Utilities Commission,
  1,000      Refg Ser 1993 A ............................................................5.25     10/ 1/14       898,410
  1,900      Ser 1991 A (Prerefunded) ...................................................6.50     10/ 1/20     2,081,241
  2,000      Ser 1993 ...................................................................5.125    10/ 1/19     1,731,440
  2,000     Puerto Rico Electric Power Authority, Power Ser O ...........................5.00      7/ 1/12     1,733,280
- - -----------                                                                                                  ------------
  9,900                                                                                                        9,328,681
- - -----------                                                                                                  ------------
            HOSPITAL REVENUE (16.9%)
    285     Altamonte Springs Health Facilities Authority, Adventist Health/Sunbelt Inc
             Ser 1984 (MBIA Insured) (Prerefunded) ......................................7.90     10/ 1/14       311,148
    500     Cape Canaveral Hospital District, Ser 1991 COPs (AMBAC Insured)  ............6.875     1/ 1/21       523,515
  2,500     Dade County, Jackson Memorial Hospital Ser 1993 (MBIA Insured)  .............5.625     6/ 1/13     2,360,750
  1,000     Jacksonville, University Medical Center Inc Ser 1992 (Connie Lee Insured)  ..6.60      2/ 1/21     1,027,910
  2,000     Jacksonville Health Facilities Authority, Daughters of Charity/St Vincent's
             Medical Center Inc Ser 1993 A ..............................................5.00     11/15/15     1,698,340
  1,000     Lakeland, Regional Medical Center Ser 1992 A (FGIC Insured) .................6.12     11/15/22     1,004,170
  2,000     Orange County Health Facilities Authority, Orlando Regional Healthcare Ser
             1993 A (MBIA Insured) ......................................................6.00     11/ 1/24     1,983,280
    140     Palm Beach County Health Facilities Authority, JFK Medical Center Inc Ser
             1988 .......................................................................8.875    12/ 1/18       153,171
  1,000     Polk County Industrial Development Authority, United Haven Hospital 1985 Ser
             2 (MBIA Insured) ...........................................................6.25      9/ 1/15     1,016,840
  1,000     South Broward Hospital District, Ser 1991 B & C Special Linked RIBS & SAVRS
             (AMBAC Insured) ............................................................6.46      5/13/21     1,030,470
  1,000     Tallahassee, Tallahassee Memorial Regional Medical Center Inc Refg Ser 1992
             B (MBIA Insured) ...........................................................6.00     12/ 1/15       997,590
  2,000     Tampa, Florida, Allegany Health System, St Mary's Hospital Ser 1993 (MBIA
             Insured) ...................................................................5.00     12/ 1/12     1,766,080
- - -----------                                                                                                  ------------
 14,425                                                                                                       13,873,264
- - -----------                                                                                                  ------------
            INDUSTRIAL DEVELOPMENT/POLLUTION CONTROL REVENUE (5.6%)
            Citrus County, Florida Power Corp
  1,000      Refg Ser 1992 B ............................................................6.35      2/ 1/22     1,005,090
  2,000      Refg Ser 1992 A ............................................................6.625     1/ 1/27     2,056,220
            St Lucie County, Florida Power & Light Co
    490      Ser 1991 (AMT) .............................................................7.15      2/ 1/23       513,765
  1,000      Ser 1992 (AMT) .............................................................6.70      5/ 1/27     1,020,950
- - -----------                                                                                                  ------------
  4,490                                                                                                        4,596,025
- - -----------                                                                                                  ------------
            MORTGAGE REVENUE -- SINGLE FAMILY (5.3%)
  1,015     Brevard County Housing Finance Authority, Refg Ser 1991 B (FSA Insured)  ....7.00      3/ 1/13     1,055,478
     80     Broward County Housing Finance Authority, GNMA & FNMA Collateralized 1991
             Ser A (AMT) ................................................................7.35      3/ 1/23        82,909
    200     Dade County Housing Finance Authority, GNMA & FNMA Collateralized 1991 Ser B
             (AMT) ......................................................................7.25      9/ 1/23       206,100
    690     Florida Housing Finance Agency, GNMA Collaterized 1990 Ser G-1 (AMT)  .......7.90      3/ 1/22       716,517
    110     Orange County Housing Finance Authority, GNMA Collaterized 1991 Ser A (AMT)  7.375     9/ 1/24       113,178
    105     Puerto Rico Housing & Finance Agency, Subsidy Prepayment (Prerefunded)  .....7.25     12/ 1/06       109,954
  2,000     Puerto Rico Housing Finance Corporation, Portfolio One GNMA-Backed Ser C  ...6.85     10/15/23     2,051,140
- - -----------                                                                                                  ------------
  4,200                                                                                                        4,335,276
- - -----------                                                                                                  ------------


<PAGE>

         
<PAGE>
<CAPTION>
DEAN WITTER MULTI-STATE--MUNICIPAL SERIES TRUST
PORTFOLIO OF INVESTMENTS -- FLORIDA SERIES May 31, 1994 (unaudited) (continued)
- - -----------------------------------------------------------------------------------------------------------------
 PRINCIPAL
 AMOUNT (IN                                                                                COUPON   MATURITY
 THOUSANDS)                                                                                 RATE      DATE       VALUE
- - -----------                                                                              -------- ---------- ------------
<C>         <S>                                                                          <C>      <C>        <C>
            NURSING & HEALTH RELATED FACILITIES REVENUE (1.3%)
$ 1,000     Hillsborough County Industrial Authority, Allegany Health/John Knox Village
- - -----------  of Tampa Bay Inc Ser 1992 (MBIA Insured) ...................................6.375%   12/ 1/12   $ 1,022,500
                                                                                                             ------------
            PUBLIC FACILITIES REVENUE (7.2%)
  1,500     Brevard County School Board, Florida School Boards Association Inc Ser 1992
             A COPs (AMBAC Insured) .....................................................6.50      7/ 1/12     1,552,575
  1,000     Miami Sports & Exhibition Authority, Refg Ser 1992 A (FGIC Insured)  ........6.15     10/ 1/20     1,005,200
  1,000     Palm Beach County, Criminal Justice Refg Ser 1993 (FGIC Insured)  ...........5.375     6/ 1/08       969,860
  2,150     St Lucie County, Sales Tax Ser 1992 (FGIC Insured) (Prerefunded)  ...........6.50     10/ 1/22     2,361,818
- - -----------                                                                                                  ------------
  5,650                                                                                                        5,889,453
- - -----------                                                                                                  ------------
            RESOURCE RECOVERY REVENUE (3.6%)
            Broward County,
  1,070      Broward Waste Energy Co North Ser 1984 .....................................7.95     12/ 1/08     1,167,017
    690      SES Broward Co LP South Ser 1984 ...........................................7.95     12/ 1/08       752,562
  1,000     Lee County, Solid Waste Ser 1991 A (AMT) (MBIA Insured) .....................6.50     10/ 1/13     1,033,050
- - -----------                                                                                                  ------------
  2,760                                                                                                        2,952,629
- - -----------                                                                                                  ------------
            TRANSPORTATION FACILITIES REVENUE (21.9%)
            Dade County, Aviation,
    400      Ser U (AMT) ................................................................6.75     10/ 1/06       422,312
  1,000      1992 Ser B (MBIA Insured) ..................................................6.60     10/ 1/22     1,037,010
            Mid-Bay Bridge Authority,
  5,000      Sr Lien Crossover Refg Ser 1993 A ..........................................6.10     10/ 1/22     4,861,650
    500      Ser 1991 A (ETM) ...........................................................6.875    10/ 1/22       569,375
            Greater Orlando Aviation Authority,
  1,000      Florida Department of Transportation, Turnpike Ser 1991 A (AMBAC Insured) ..6.25      7/ 1/20     1,010,160
    750      Ser 1992 A (AMT) (FGIC Insured) ............................................6.50     10/ 1/12       768,623
    275      Ser 1988 (AMT) .............................................................8.375    10/ 1/16       310,569
  1,000      Ser 1993 A (AMT) (AMBAC Insured) ...........................................5.50     10/ 1/18       910,220
  1,250     Hillsborough County Aviation Authority, Tampa Intl Airport Refg Ser 1993 B  .
             (FGIC Insured) .............................................................5.60     10/ 1/19     1,165,200
  1,500     Lee County, Refg Ser 1991 (AMBAC Insured) ...................................6.00     10/ 1/17     1,486,815
  1,500     Osceola County, Osceola Parkway (MBIA Insured) ..............................6.10      4/ 1/17     1,503,120
            Volusia County, Daytona Beach Regional Airport ..............................
    235      Ser 1991 (AMT) (MBIA Insured) ..............................................7.00     10/ 1/21       255,126
     65      Ser 1991 (AMT) (MBIA Insured) (Prerefunded) ................................7.00     10/ 1/21        70,566
    500     Puerto Rico Highway Authority, Ser Q ........................................6.00      7/ 1/20       477,795
            Puerto Rico Highway & Transportation Authority,
  2,000      Refg Ser X .................................................................5.25      7/ 1/21     1,705,740
  1,200      Ser S (Prerefunded) ........................................................6.50      7/ 1/22     1,318,008
- - -----------                                                                                                  ------------
 18,175                                                                                                       17,872,289
- - -----------                                                                                                  ------------
            WATER & SEWER REVENUE (10.4%)
    500     Boynton Beach, Utility Ser 1992 (FGIC Insured) ..............................6.25     11/ 1/12       509,930
  1,425     Charlotte County, Utility Refg Ser 1993 (FGIC Insured) ......................5.25     10/ 1/21     1,252,746
  1,000     Key West, Sewer Refg Ser 1993 (FGIC Insured) ................................5.70     10/ 1/20       947,790
  1,000     Orange County, Water Utilities Ser 1992 (AMBAC Insured) .....................6.25     10/ 1/17     1,008,650
    500     Port St Lucie, Stormwater Utility Ser 1991 (AMBAC Insured) ..................6.625     5/ 1/15       515,445
  2,000     Tampa, Water & Sewer Ser 1992 A (FGIC Insured) ..............................6.00     10/ 1/17     1,982,420
  2,030     Puerto Rico Aqueduct & Sewer Authority, Ser 1988 A ..........................7.90      7/ 1/07     2,247,048
- - -----------                                                                                                  ------------
  8,455                                                                                                        8,464,029
- - -----------                                                                                                  ------------


<PAGE>

         
<PAGE>
<CAPTION>
DEAN WITTER MULTI-STATE--MUNICIPAL SERIES TRUST
PORTFOLIO OF INVESTMENTS -- FLORIDA SERIES May 31, 1994 (unaudited) (continued)
- - -----------------------------------------------------------------------------------------------------------------

 PRINCIPAL
 AMOUNT (IN                                                                                COUPON   MATURITY
 THOUSANDS)                                                                                 RATE      DATE       VALUE
- - -----------                                                                              -------- ---------- ------------
<C>         <S>                                                                          <C>      <C>        <C>
            OTHER REVENUE (3.6%)
$ 1,000     Homestead, Hurricane Andrew Special Insurance Assessment Ser 1993 (MBIA
             Insured) ...................................................................5.25 %    3/ 1/03   $ 1,001,300
  2,000     Orlando, Cap Impr Refg Ser 1992 .............................................6.00     10/ 1/22     1,931,180
- - -----------                                                                                                  ------------
  3,000                                                                                                        2,932,480
- - -----------                                                                                                  ------------
 75,255     TOTAL MUNICIPAL BONDS (IDENTIFIED COST $73,484,235) .........................                     74,393,771
- - -----------                                                                                                  ------------

            SHORT-TERM FLORIDA EXEMPT MUNICIPAL OBLIGATIONS (7.1%)
  2,000     Dade County, Water & Sewer Ser 1994 (FGIC) Insured (Tender 6/1/94)  .........2.85*    10/ 5/22     2,000,000
  1,000     Gulf Breeze, Local Government Ser 1985 B (Tender 6/2/94) ....................2.65*    12/ 1/15     1,000,000
  2,800     Sarasota County Health Facilities Authority, Venice Hospital (Tender 6/1/94) 2.75*    12/ 1/15     2,800,000
- - -----------                                                                                                  ------------
  5,800     TOTAL SHORT-TERM FLORIDA EXEMPT MUNICIPAL OBLIGATIONS (IDENTIFIED COST
             $5,800,000) ................................................................                      5,800,000
- - -----------                                                                                                  ------------
$81,055     TOTAL INVESTMENTS (IDENTIFIED COST $79,284,235) (a) .........................        98.1%        80,193,771
===========
            CASH AND OTHER ASSETS IN EXCESS OF LIABILITIES ..............................         1.9          1,543,190
                                                                                                -----        ------------
            NET ASSETS ..................................................................       100.0%       $81,736,961
                                                                                                =====        ============
<FN>
- - ---------------
*   Variable or floating rate security. Coupon rate shown reflects current
    rate.
(a) The aggregate cost for federal income tax purposes is $79,284,235; the
    aggregate gross unrealized appreciation is $2,393,850 and the aggregate
    gross unrealized depreciation is $1,484,314, resulting in net
    unrealized appreciation of $909,536.

</TABLE>
                      See Notes to Financial Statements


<PAGE>

         
<PAGE>

DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
PORTFOLIO OF INVESTMENTS -- MASSACHUSETTS SERIES May 31, 1994 (unaudited)
- - -----------------------------------------------------------------------------

<TABLE>
<CAPTION>
 PRINCIPAL
 AMOUNT (IN                                                                         COUPON   MATURITY
 THOUSANDS)                                                                          RATE      DATE       VALUE
- - -----------                                                                       -------- ---------- ------------
<C>         <S>                                                                   <C>      <C>        <C>
            MASSACHUSETTS EXEMPT MUNICIPAL BONDS (86.3%)
            GENERAL OBLIGATION (9.0%)
            Massachusetts,
$  500       Refg 1992 Ser B .....................................................6.50 %    8/ 1/08   $  527,990
 1,000       Refg 1993 Ser A .....................................................5.50      2/ 1/11      930,740
   150      Nantucket, 1991 ......................................................6.80     12/ 1/11      161,403
- - -----------                                                                                           ------------
 1,650                                                                                                 1,620,133
- - -----------                                                                                           ------------
            EDUCATIONAL FACILITIES REVENUE (22.2%)
            Massachusetts Health & Educational Facilities Authority,
   100       Amherst College Ser E ...............................................6.80     11/ 1/21      104,731
 1,000       Boston College Ser K ................................................5.25      6/ 1/18      870,930
   400       Boston University Ser L RIBS&SAVRS (MBIA Insured) ...................6.518    10/ 1/31      410,836
   150       Community College Ser A (Connie Lee Insured) ........................6.60     10/ 1/22      153,589
   400       Suffolk University Ser B (Connie Lee Insured) .......................6.25      7/ 1/12      405,340
   500       University of Massachusetts Foundation Inc/Medical School Research
              Ser A (Connie Lee Insured) .........................................6.00      7/ 1/23      480,070
   150       Worcester Polytechnic Institute Refg Ser E ..........................6.625     9/ 1/17      154,533
            Massachusetts Industrial Finance Agency,
 1,000       Brooks School Ser 1993 ..............................................5.90      7/ 1/13      961,230
   150       Holy Cross College Ser 1992 .........................................6.45      1/ 1/12      154,304
   300       Mount Holyoke College Refg Ser 1992 A (MBIA Insured) ................6.30      7/ 1/13      304,953
- - -----------                                                                                           ------------
 4,150                                                                                                 4,000,516
- - -----------                                                                                           ------------
            ELECTRIC REVENUE (2.8%)
   500      Massachusetts Municipal Wholesale Electric Company, Power Supply
             1992 Ser C ..........................................................6.625     7/ 1/18      509,150
- - -----------                                                                                           ------------
            HOSPITAL REVENUE (15.7%)
   500      Boston, Boston City Hospital-FHA Insured Mtge Refg Ser B  ............5.75      2/15/13      467,890
            Massachusetts Health & Educational Facilities Authority,
   100       Charlton Memorial Hospital Ser B ....................................7.25      7/ 1/13      104,727
   500       Dana-Farber Cancer Institute Ser F (FGIC Insured) ...................6.00     12/ 1/15      489,950
   500       Lahey Clinic Medical Center Ser B (MBIA Insured) ....................5.625     7/ 1/15      466,945
 1,000       Massachusetts General Hospital Ser F (MBIA Insured) .................6.00      7/ 1/15      980,030
   200       McLean Hospital Ser C (FGIC Insured) ................................6.625     7/ 1/15      206,588
   100       New England Deaconess Hospital Ser C ................................7.20      4/ 1/22      105,184
- - -----------                                                                                           ------------
 2,900                                                                                                 2,821,314
- - -----------                                                                                           ------------

            INDUSTRIAL DEVELOPMENT/POLLUTION CONTROL REVENUE (5.2%)
 1,000      Massachusetts Industrial Finance Agency, Eastern Edison Co
             Refg 1993 Ser .......................................................5.875     8/ 1/08      939,940
- - -----------                                                                                           ------------
            MORTGAGE REVENUE--MULTI-FAMILY (1.1%)
   200      Massachusetts Housing Finance Agency, Hsg Dev 1986 Ser A (AMT)  ......7.75     12/ 1/19      206,570
- - -----------                                                                                           ------------
            MORTGAGE REVENUE--SINGLE FAMILY (3.6%)
            Massachusetts Housing Finance Agency,
   435       Ser 21 (AMT) ........................................................6.30      6/ 1/25      415,651
   220       Ser 21 (AMT) ........................................................7.125     6/ 1/25      224,479
- - -----------                                                                                           ------------
   655                                                                                                   640,130
- - -----------                                                                                           ------------


<PAGE>

         
<PAGE>
<CAPTION>
DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
PORTFOLIO OF INVESTMENTS -- MASSACHUSETTS SERIES May 31, 1994 (unaudited) (continued)
- - -----------------------------------------------------------------------------------------------------------------

 PRINCIPAL
 AMOUNT (IN                                                                         COUPON   MATURITY
 THOUSANDS)                                                                          RATE      DATE       VALUE
- - -----------                                                                       -------- ---------- ------------
<C>         <S>                                                                   <C>      <C>        <C>
            STUDENT LOAN REVENUE (3.4%)
$   195     Massachusetts Educational Facilities Authority, Education Loan Issue
             D Ser 1991(AMT)(MBIA Insured) .......................................7.25 %    1/ 1/09   $   203,188
    400     New England Education Loan Marketing Corporation, 1992 Sub Issue H
             (AMT) ...............................................................6.90     11/ 1/09       414,216
- - -----------                                                                                           ------------
    595                                                                                                   617,404
- - -----------                                                                                           ------------

            TRANSPORTATION FACILITIES REVENUE (15.1%)
    300     Guam, Highway 1992 Ser A (Capital Guaranty Insured) ..................6.30      5/ 1/12       310,029
    300     Massachusetts, Highway Impr 1992 Ser A ...............................6.00      6/ 1/13       297,300
            Massachusetts Port Authority,
    500      Ser 1992-B ..........................................................6.00      7/ 1/13       494,375
    100      Ser A 1990 (AMT) (FGIC Insured) .....................................7.50      7/ 1/20       109,261
    250     Massachusetts Turnpike Authority, 1993 Ser A .........................5.00      1/ 1/13       217,653
    500     Woods Hole, Martha's Vineyard & Nantucket Steamship Authority, 1994
             Ser A ...............................................................5.125     3/ 1/12       444,550
  1,000     Puerto Rico Highway & Transportation Authority, Refg Ser X  ..........5.25      7/ 1/21       852,870
- - -----------                                                                                           ------------
  2,950                                                                                                 2,726,038
- - -----------                                                                                           ------------
            WATER & SEWER REVENUE (8.2%)
    500     Boston Water & Sewer Commission, Sr 1992 Ser A .......................5.75     11/ 1/13       479,660
    500     Massachusetts Water Resources Authority, Ser A 1990 (Prerefunded)  ...6.50     12/ 1/19       547,730
    400     Puerto Rico Aqueduct & Sewer Authority, Ser 1988 A ...................7.90      7/ 1/07       442,768
- - -----------                                                                                           ------------
  1,400                                                                                                 1,470,158
- - -----------                                                                                           ------------
 16,000     TOTAL MUNICIPAL BONDS (IDENTIFIED COST $15,713,782)                                        15,551,353
- - -----------                                                                                           ------------
            SHORT-TERM MASSACHUSETTS EXEMPT MUNICIPAL
             OBLIGATIONS (10.6%)
    400     Massachusetts, Dedicated Income Tax Ser 1990 B (Tender 6/1/94)  ......2.80*    12/ 1/97       400,000
            Massachusetts Health & Educational Facilities Authority,
    800      Capital Asset Ser B (MBIA Insured) (Tender 6/1/94) ..................2.95*     7/ 1/05       800,000
    700      Williams College Ser E (Tender 6/1/94) ..............................3.05*     8/ 1/14       700,000
- - -----------                                                                                           ------------
  1,900     TOTAL SHORT-TERM MASSACHUSETTS EXEMPT MUNICIPAL
            OBLIGATIONS (IDENTIFIED COST $1,900,000) .............................                      1,900,000
- - -----------                                                                                           ------------
$17,900     TOTAL INVESTMENTS (IDENTIFIED COST $17,613,782)(A) ...................       96.9%         17,451,353
===========
            CASH AND OTHER ASSETS IN EXCESS OF LIABILITIES .......................        3.1             563,954
                                                                                        -----         ------------
            NET ASSETS ...........................................................      100.0%        $18,015,307
                                                                                        ======        ============
<FN>
- - ---------------
*   Variable or floating rate securities. Coupon rate shown reflects current
    rate.
(a) The aggregate cost for federal income tax purposes is $17,613,782; the
    aggregate gross unrealized appreciation is $331,934 and the aggregate
    gross unrealized depreciation is $494,363, resulting in net unrealized
    depreciation of $162,429.

</TABLE>

                      See Notes to Financial Statements


<PAGE>

         
<PAGE>

DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
PORTFOLIO OF INVESTMENTS -- MICHIGAN SERIES May 31, 1994 (unaudited)
- - -----------------------------------------------------------------------------

<TABLE>
<CAPTION>
 PRINCIPAL
 AMOUNT (IN                                                                        COUPON   MATURITY
 THOUSANDS)                                                                         RATE      DATE       VALUE
- - -----------                                                                      -------- ---------- ------------
<C>         <S>                                                                  <C>      <C>        <C>
            MICHIGAN EXEMPT MUNICIPAL BONDS (89.7%)
            GENERAL OBLIGATION (5.0%)
$  500      Kentwood Public Schools, 1992 Bldg & Site Refg ......................6.40 %    5/ 1/15   $  505,810
   600      River Rouge School District, Bldg & Unltd Tax 1993 (FSA Insured)  ...5.625     5/ 1/22      554,436
- - -----------                                                                                          ------------
 1,100                                                                                                1,060,246
- - -----------                                                                                          ------------

            EDUCATIONAL FACILITIES REVENUE (13.5%)
            Central Michigan University,
 1,000       Refg Ser 1993 (MBIA Insured) .......................................5.50     10/ 1/10      951,300
   300       Refg Ser 1992 (MBIA Insured) .......................................5.50     10/ 1/15      276,636
 1,000      Michigan State University, Ser 1992 A ...............................6.00      8/15/16      986,600
   500      Wayne State University, Ser 1993 (AMBAC Insured) ....................5.50     11/15/18      456,210
   200      Western Michigan University, Ser 1991 B (AMBAC Insured)  ............6.50      7/15/21      204,670
- - -----------                                                                                          ------------
 3,000                                                                                                2,875,416
- - -----------                                                                                          ------------

            ELECTRIC REVENUE (11.4%)
 2,000      Michigan Public Power Agency, Belle River 1993 A ....................5.25      1/ 1/18    1,754,840
   500      Wyandotte, Electric Refg 1992 (MBIA Insured) ........................6.25     10/ 1/17      502,210
   200      Puerto Rico Electric Power Authority, Power Ser O ...................5.00      7/ 1/12      173,328
- - -----------                                                                                          ------------
 2,700                                                                                                2,430,378
- - -----------                                                                                          ------------

            HOSPITAL REVENUE (16.8%)
 1,000      Kent Hospital Finance Authority, Butterworth Hospital
             Refg Ser 1993 A ....................................................5.38      1/15/19      860,480
            Michigan Hospital Finance Authority,
   300       Detroit Medical Center Oblig Group Ser 1991 A ......................7.50      8/15/11      324,933
   100       Henry Ford Continuing Care Corp, Ser 1991 ..........................6.75      7/ 1/11      103,488
   500       Henry Ford Health System Refg Ser 1992 A ...........................5.75      9/ 1/17      456,955
 1,000       Oakwood Hospital Oblig Group Refg Ser 1993 A (FGIC Insured)  .......5.625    11/ 1/18      918,670
   500      Royal Oak Hospital Finance Authority, William Beaumont Hospital Ser
             1991 D .............................................................6.75      1/ 1/20      512,040
   400      University of Michigan, Ser 1990 ....................................6.375    12/ 1/24      397,072
- - -----------                                                                                          ------------
 3,800                                                                                                3,573,638
- - -----------                                                                                          ------------

            INDUSTRIAL DEVELOPMENT/POLLUTION CONTROL REVENUE (4.5%)
   200      Michigan Strategic Fund, Ford Motor Co Refg Ser 1991 A  .............7.10      2/ 1/06      218,596
            Monroe County, Detroit Edison Co
   200       Proj #1 (AMT) (FGIC Insured) .......................................7.65      9/ 1/20      221,492
   500       Monroe & Fermi Plants Collateralized Ser 1-1992 (AMT) (MBIA
             Insured) ...........................................................6.875     9/ 1/22      524,095
- - -----------                                                                                          ------------
   900                                                                                                  964,183
- - -----------                                                                                          ------------
            MORTGAGE REVENUE -- MULTI-FAMILY (9.0%)
            Michigan Housing Development Authority,
   500       Rental Ser 1992 A ..................................................6.60      4/ 1/12      504,785
 1,000       1992 Ser A (FSA Insured) ...........................................6.50      4/ 1/23      994,720
   400       Ser 1990 A (AMT) ...................................................7.70      4/ 1/23      417,372
- - -----------                                                                                          ------------
 1,900                                                                                                1,916,877
- - -----------                                                                                          ------------
            NURSING & HEALTH RELATED FACILITIES REVENUE (5.7%)
 1,200      University of Michigan, Medical Service Plan Ser 1991 ...............6.50     12/ 1/21    1,225,536
- - -----------                                                                                          ------------
            PUBLIC FACILITIES REVENUE (7.0%)
 1,500      Michigan Building Authority, Refg Ser I .............................6.25     10/ 1/20    1,492,155
- - -----------                                                                                          ------------


<PAGE>

         
<PAGE>
<CAPTION>
DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
PORTFOLIO OF INVESTMENTS -- MICHIGAN SERIES May 31, 1994 (unaudited) (continued)
- - -----------------------------------------------------------------------------------------------------------------

 PRINCIPAL
 AMOUNT (IN                                                                        COUPON   MATURITY
 THOUSANDS)                                                                         RATE      DATE       VALUE
- - -----------                                                                      -------- ---------- ------------
<C>         <S>                                                                  <C>      <C>        <C>
            RESOURCE RECOVERY REVENUE (2.2%)
$   300     Detroit Economic Development Corporation, Ser A 1991 (AMT) (FSA
             Insured) ...........................................................6.875 %   5/ 1/09   $   317,052
    150     Greater Detroit Resource Recovery Authority, Ser A ..................9.25     12/13/08       160,068
- - -----------                                                                                          ------------
    450                                                                                                  477,120
- - -----------                                                                                          ------------
            TRANSPORTATION REVENUE (5.0%)
    250     Michigan, Trunk Line Rfg Ser 1992 A
             Refg Ser 1992 A ....................................................5.75      10/1/12       238,012
            Wayne County, Detroit Metropolitan Wayne County Airport Sub Lien
    400       Ser 1993 C (MBIA Insured) .........................................5.25      12/1/13       359,424
    200       Ser 1991 A (MBIA Insured) (Prerefunded) ...........................6.75      12/1/19       222,432
    250       Ser 1991 B (AMT) (MBIA Insured) ...................................6.75      12/1/21       259,033
- - -----------                                                                                          ------------
  1,100                                                                                                1,078,901
- - -----------                                                                                          ------------

            WATER & SEWER REVENUE (9.6%)
            Detroit,
    500      Sewage Disposal Ser 1991 (FGIC Insured) ............................6.625      7/1/21       515,605
    500      Sewage Refg Ser 1993 A INFLOS (FGIC Insured) .......................8.145+     7/1/23       425,000
    200      Water Supply Rfg Ser 1992 INFLOS (FGIC Insured) ....................9.495+     7/1/22       202,750
    300      Water Supply Rfg Ser 1992 INFLOS (FGIC Insured) (Prerefunded)  .....9.495+     7/1/22       346,125
    500     Puerto Rico Aqueduct & Sewer Authority, Ser 1988 A ..................7.90       7/1/07       553,460
- - -----------                                                                                          ------------
  2,000                                                                                                2,042,940
- - -----------                                                                                          ------------

 19,650     TOTAL MUNICIPAL BONDS (IDENTIFIED COST $19,283,593) .................                     19,137,390
- - -----------                                                                                          ------------
            SHORT-TERM MICHIGAN EXEMPT MUNICIPAL OBLIGATIONS (7.5%)
    600     Delta County, Michigan Economic Development Corp Mead-Escanaba Paper
             Ser E (Tender 6/1/94) ..............................................3.15*     12/1/23       600,000
  1,000     University of Michigan Hospital, Ser 1992 A (Tender 6/1/94)  ........3.00*     12/1/19     1,000,000
- - -----------                                                                                          ------------
  1,600     TOTAL SHORT-TERM MICHIGAN EXEMPT MUNICIPAL OBLIGATIONS (IDENTIFIED
             COST $1,600,000) ...................................................                      1,600,000
- - -----------                                                                                          ------------
$21,250     TOTAL INVESTMENTS (IDENTIFIED COST $20,883,593)(A) ..................         97.2%       20,737,390
===========
            CASH AND OTHER ASSETS IN EXCESS OF LIABILITIES ......................          2.8           587,992
                                                                                         ------      ------------
            NET ASSETS ..........................................................        100.0%      $21,325,382
                                                                                         ======      ============
<FN>
- - --------------
 +  Current coupon rate for residual interest bonds. This rate resets
    periodically as the auction rate on the related short-term securities
    fluctuates.

 *  Variable or floating rate securities. Coupon rate shown reflects current
    rate.

(a) The aggregate cost for federal income tax purposes is $20,883,593; the
    aggregate gross unrealized appreciation is $453,916 and the aggregate
    gross unrealized depreciation is $600,119, resulting in net unrealized
    depreciation of $146,203.
</TABLE>

                      See Notes to Financial Statements

<PAGE>

         
<PAGE>
DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
PORTFOLIO OF INVESTMENTS -- MINNESOTA SERIES May 31, 1994 (unaudited)
- - -----------------------------------------------------------------------------

<TABLE>
<CAPTION>
 PRINCIPAL
 AMOUNT (IN                                                                          COUPON   MATURITY
 THOUSANDS)                                                                           RATE      DATE        VALUE
- - -----------                                                                        -------- ---------- -------------
<C>         <S>                                                                    <C>      <C>        <C>
            MINNESOTA EXEMPT MUNICIPAL BONDS (87.2%)
            GENERAL OBLIGATION (6.7%)
$  100      Little Falls Independent School District #482, Ser 1991 (AMBAC
             Insured) .............................................................6.80 %    2/ 1/10      $  106,735
   100      Minneapolis, Sales Tax Refg Ser 1992 ..................................6.25      4/ 1/12         104,468
   300      Minneapolis Board of Estimate & Taxation ..............................5.90     12/ 1/13         296,916
   100      South Washington Independent School District #833, Ser 1991 A
             (FGIC Insured) .......................................................6.875     6/ 1/09         108,235
   200      Puerto Rico, Pub Impr Ser 1991 ........................................6.00      7/ 1/14         194,308
- - -----------                                                                                            -------------
   800                                                                                                       810,662
- - -----------                                                                                            -------------

            EDUCATIONAL FACILITIES REVENUE (12.2%)
            Minnesota Higher Education Facilities Authority,
   200       Hamline University Ser Three-K .......................................6.60      6/ 1/09         204,730
   250       St Marys College Ser Three-Q .........................................6.15     10/ 1/23         242,387
   100       University of St Thomas Ser Three-C (Prerefunded) ....................7.10      9/ 1/10         111,138
   250       University of St Thomas Refg Ser Three-R2 ............................5.60      9/ 1/14         237,495
   200      Northfield, St Olaf College 1992 ......................................6.40     10/ 1/21         206,696
   500      University of Minnesota, Ser 1993 A INFLOS ............................6.173+    8/15/03         463,750
- - -----------                                                                                            -------------
 1,500                                                                                                     1,466,196
- - -----------                                                                                            -------------

            ELECTRIC REVENUE (5.7%)
   300      Northern Municipal Power Agency, Refg Ser 1989 A ......................5.00      1/ 1/21         255,093
   500      Southern Minnesota Municipal Power Agency, Ser 1993 B .................5.00      1/ 1/13         433,815
- - -----------                                                                                            -------------
   800                                                                                                       688,908
- - -----------                                                                                            -------------

            HOSPITAL REVENUE (19.9%)
   500      Breckenridge, Catholic Health Corp Ser 1993 ...........................5.25     11/15/13         437,515
   200      Duluth Economic Development Authority, Saint Lukes Hospital Refg
             Ser 1992 B(Connie Lee Insured) .......................................6.40      5/ 1/18         202,768
   100      Minneapolis, Lifespan Inc/Children's Medical Center Ser 1990 C  .......7.00     12/ 1/20         104,229
   500      Robbinsdale, North Memorial Medical Center Ser 1993-A (AMBAC Insured)  5.45      5/15/13         464,290
            Rochester, Mayo Foundation/Mayo Medical Center
   250       Ser 1992 I ...........................................................5.75     11/15/21         235,238
   200       Ser 1992 D ...........................................................6.25     11/15/21         200,752
            St Paul Housing & Redevelopment Authority,
   300       Health East Refg Ser 1993-A ..........................................6.625    11/ 1/17         285,456
   500       St Paul-Ramsey Medical Center Ser 1993 (AMBAC Insured)  ..............5.55      5/15/23         463,450
- - -----------                                                                                            -------------
 2,550                                                                                                     2,393,698
- - -----------                                                                                            -------------

            INDUSTRIAL DEVELOPMENT/POLLUTION CONTROL REVENUE (11.7%)
   500      Anoka County, United Power Assoc Ser 1987 A (NRU-CFC Gtd) (AMT)  ......6.95     12/ 1/08         527,020
   690      Bass Brook, Minnesota Power & Light Co Refg Ser 1992 ..................6.00      7/ 1/22         656,321
            Minneapolis Community Development Agency,
   100       Ltd Tax Supported Common Bond Fund Ser 1991-3(AMT) ...................8.25     12/ 1/11         111,054
   100       Ltd Tax Supported Common Bond Fund Ser 1991-1(AMT) ...................8.00     12/ 1/16         109,220
- - -----------                                                                                            -------------
 1,390                                                                                                     1,403,615
- - -----------                                                                                            -------------

            MORTGAGE REVENUE -- MULTI-FAMILY (5.1%)
   300      Burnsville, Summit Park Apts FHA Insured Refg Ser 1993 ................6.00     7/ 1/33          273,693
    50      Minneapolis, Riverplace Ser 1987 A ....................................7.10     1/ 1/20           51,126
   200      Minneapolis Housing Finance Agency, Ser 1992 A ........................6.95     8/ 1/17          205,066
    75      Saint Cloud, Northway A&B Ser 1990 ....................................7.50    12/ 1/18           76,890
- - -----------                                                                                            -------------
   625                                                                                                       606,775
- - -----------                                                                                            -------------


<PAGE>

         
<PAGE>
<CAPTION>
DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
PORTFOLIO OF INVESTMENTS -- MINNESOTA SERIES May 31, 1994 (unaudited) (continued)
- - -----------------------------------------------------------------------------------------------------------------

 PRINCIPAL
 AMOUNT (IN                                                                          COUPON   MATURITY
 THOUSANDS)                                                                           RATE      DATE        VALUE
- - -----------                                                                        -------- ---------- -------------
<C>         <S>                                                                    <C>      <C>        <C>
            MORTGAGE REVENUE -- SINGLE FAMILY (9.4%)
$   100     Dakota & Washington Counties Housing & Redevelopment Authority,
             GNMA-Backed Ser 1988 (AMT) ...........................................8.375%    9/ 1/21   $   128,738
    200     Minneapolis-Saint Paul Housing Finance Board, GNMA-Backed Phase IX
             Ser 1991(AMT) ........................................................7.25      8/ 1/21       207,144
            Minnesota Housing Finance Agency,
    115      Ser 1990 D (AMT) .....................................................8.00      1/ 1/23       118,434
    475      Ser 1992 C-1 (AMT) ...................................................6.75      7/ 1/23       477,090
    200      Ser 1992 H (AMT) .....................................................6.50      1/ 1/26       196,302
- - -----------                                                                                            -------------
  1,090                                                                                                  1,127,708
- - -----------                                                                                            -------------
            NURSING & HEALTH RELATED FACILITIES REVENUE (4.3%)
    500     Minneapolis & Saint Paul Housing & Redevelopment Authority,
- - -----------  Group Health Plan Inc Ser 1992 .......................................6.75     12/ 1/13       512,080
                                                                                                       -------------
            PUBLIC FACILITIES REVENUE (9.5%)
    300     Hennepin County, Ser 1991 COPs ........................................6.80      5/15/17       318,306
            Saint Paul Housing & Redevelopment Authority,
    400      Civic Center Ser 1993 ................................................5.45     11/ 1/13       370,624
    500      Civic Center .........................................................5.55     11/ 1/23       456,875
- - -----------                                                                                            -------------
  1,200                                                                                                  1,145,805
- - -----------                                                                                            -------------
            TRANSPORTATION REVENUE (0.9%)
    100     Minneapolis-St Paul Metropolitan Airports Commission, Ser 8 (AMT)  ....6.60      1/ 1/11       104,472
- - -----------                                                                                            -------------
            WATER & SEWER REVENUE (1.8%)
            Minnesota Public Facilities Authority,
    100      Water Pollution Control Ser 1991 A ...................................6.95      3/ 1/13       107,578
    100      Water Pollution Control Ser 1992 A ...................................6.50      3/ 1/14       106,139
- - -----------                                                                                            -------------
    200                                                                                                    213,717
- - -----------                                                                                            -------------
 10,755     TOTAL MUNICIPAL BONDS (IDENTIFIED COST $10,600,738) ...................                     10,473,636
- - -----------                                                                                            -------------

            SHORT-TERM MINNESOTA EXEMPT MUNICIPAL
             OBLIGATIONS (7.5%)
    500     Beltrami County, Environmental Northwood Panelboard (Tender 6/1/94)  ..3.15*    12/ 1/21       500,000
    400     Minneapolis Community Development Agency, Riverplace Pinnacle Apts
             (Tender 6/1/94) ......................................................3.05*     2/ 1/12       400,000
- - -----------                                                                                            -------------
    900     TOTAL SHORT-TERM MINNESOTA EXEMPT MUNICIPAL OBLIGATIONS
- - -----------
             (IDENTIFIED COST $900,000) ...........................................                        900,000
                                                                                                       -------------
$11,655     TOTAL INVESTMENTS (IDENTIFIED COST $11,500,738)(a) ....................      94.7%          11,373,636
===========
            CASH AND OTHER ASSETS IN EXCESS OF LIABILITIES ........................       5.3              641,086
                                                                                        ------         -------------
            NET ASSETS ............................................................     100.0%         $12,014,722
                                                                                        ======         =============

<FN>
- - --------------
    +  Current coupon rate for residual interest bonds. This rate resets
       periodically as the auction rate on the related short-term securities
       fluctuates.

    *  Variable or floating rate securities. Coupon rate shown reflects current
       rate.

   (a) The aggregate cost for federal income tax purposes is $11,500,738; the
       aggregate gross unrealized appreciation is $228,204 and the aggregate
       gross unrealized depreciation is $355,306, resulting in net
       depreciation of $127,102.
</TABLE>
                      See Notes to Financial Statements


<PAGE>

         
<PAGE>

DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
PORTFOLIO OF INVESTMENTS -- NEW JERSEY SERIES May 31, 1994 (unaudited)
- - -----------------------------------------------------------------------------

<TABLE>
<CAPTION>
 PRINCIPAL
 AMOUNT (IN                                                                             COUPON   MATURITY
 THOUSANDS)                                                                              RATE      DATE        VALUE
- - -----------                                                                           -------- ---------- -------------
<C>         <S>                                                                       <C>      <C>        <C>
            NEW JERSEY EXEMPT MUNICIPAL BONDS (94.3%)
            GENERAL OBLIGATION (6.2%)
$3,000      Guam, 1993 Ser A .........................................................5.375 %  11/15/13   $ 2,651,340
   500      Essex County, JY Ser 1991 (FSA Insured) ..................................6.50     12/ 1/11       521,510
- - -----------                                                                                               -------------
 3,500                                                                                                      3,172,850
- - -----------                                                                                               -------------

            EDUCATIONAL FACILITIES REVENUE (3.1%)
   500      New Jersey Economic Development Authority, The Seeing Eye Inc 1991  ......7.30      4/ 1/11       519,690
   500      Rutgers, The State University Refg Ser R .................................6.50      5/ 1/13       526,080
   500      University of Medicine & Dentistry of New Jersey, Refg Ser D  ............6.50     12/ 1/04       536,230
- - -----------                                                                                               -------------
 1,500                                                                                                      1,582,000
- - -----------                                                                                               -------------

            ELECTRIC REVENUE (3.4%)
 2,000      Puerto Rico Electric Power Authority, Power Ser O ........................5.00      7/ 1/12     1,733,280
- - -----------

            HOSPITAL REVENUE (14.0%)
            New Jersey Health Care Facilities Financing Authority,
 1,000       Allegany Health System Ser 1993 (MBIA Insured) ..........................5.125     7/ 1/13       888,300
 1,000       Atlantic City Medical Center Ser C ......................................6.80      7/ 1/11     1,034,550
   500       Cathedral Health Services Inc -- FHA Insured Mtges Ser A ................7.25      2/15/21       536,155
 1,000       Chilton Memorial Hospital Ser D .........................................5.00      7/ 1/13       847,910
 1,000       Columbus Hospital Ser A .................................................7.50      7/ 1/08     1,010,370
   500       Pascack Valley Hospital Assn Ser 1991 ...................................6.90      7/ 1/21       516,975
   500       Robert Wood Johnson University Hospital Ser B (MBIA Insured)  ...........6.625     7/ 1/16       517,710
 1,000       Somerset Medical Center Ser A (FGIC Insured) ............................5.10      7/ 1/14       882,400
 1,000       Underwood-Memorial Hospital Ser B (AMBAC Insured) .......................5.70      7/ 1/23       930,410
- - -----------                                                                                               -------------
 7,500                                                                                                      7,164,780
- - -----------                                                                                               -------------

            INDUSTRIAL DEVELOPMENT/POLLUTION CONTROL REVENUE (13.3%)
   500      Middlesex County Pollution Control Financing Authority, Amerada Hess
             Corp Refg Ser 1992 ......................................................6.875    12/ 1/22       511,050
            New Jersey Economic Development Authority,
   500       American Airlines Inc Ser 1991 (AMT) ....................................7.10     11/ 1/31       498,000
 1,000       BP Oil Inc Ser 1982 .....................................................6.55     10/ 1/12     1,034,360
   500       Hackensack Water Co Ser C (AMT) .........................................7.00     10/ 1/17       527,225
   300       Jersey Central Power & Light Co 1985 Ser ................................7.10      7/ 1/15       316,839
            Salem County Pollution Control Financing Authority,
 2,100       E I du Pont de Nemours & Co 1992 Ser A (AMT) ............................6.125     7/15/22     2,054,346
 2,000       Public Service Electric & Gas Co 1993 Ser A (MBIA Insured)  .............5.70      5/ 1/28     1,822,260
- - -----------                                                                                               -------------
 6,900                                                                                                      6,764,080
- - -----------                                                                                               -------------

            MORTGAGE REVENUE -- MULTI-FAMILY (3.0%)
            New Jersey Housing & Mortgage Finance Agency,
 1,000       Presidential Plaza at Newport -- FHA Insured Mtges Refg 1991 Ser 1  .....7.00      5/ 1/30     1,036,190
   500       Rental 1991 Ser A (AMT) .................................................7.25     11/ 1/22       514,830
- - -----------                                                                                               -------------
 1,500                                                                                                      1,551,020
- - -----------                                                                                               -------------

            MORTGAGE REVENUE -- SINGLE FAMILY (1.3%)
            New Jersey Housing & Mortgage Finance Agency, Home Buyer Ser E
   170       (AMT) (MBIA Insured) ....................................................7.65     10/ 1/16       175,515
   500      Puerto Rico Housing Finance Corporation, Portfolio Two GNMA-Backed
             Ser E RIBS (AMT) ........................................................9.535+    8/ 4/25       500,000
- - -----------                                                                                               -------------
   670                                                                                                        675,515
- - -----------                                                                                               -------------
            NURSING & HEALTH RELATED FACILITIES REVENUE (2.0%)
   990      New Jersey Health Care Facilities Financing Authority, Spectrum For
- - -----------  Living-FHA Insured Mortgage Refg Ser B ..................................6.50      2/ 1/22     1,009,037
                                                                                                            ---------

<PAGE>

         
<PAGE>
<CAPTION>
DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
PORTFOLIO OF INVESTMENTS -- NEW JERSEY SERIES May 31, 1994 (unaudited) (continued)
- - -----------------------------------------------------------------------------------------------------------------

 PRINCIPAL
 AMOUNT (IN                                                                             COUPON   MATURITY
 THOUSANDS)                                                                              RATE      DATE        VALUE
- - -----------                                                                           -------- ---------- -------------
<C>         <S>                                                                       <C>      <C>        <C>
            PUBLIC FACILITIES REVENUE (8.4%)
$ 1,000     Atlantic County Utilities Authority, Solid Waste Ser 1992 ................7.125%    3/ 1/16   $   947,120
            New Jersey Sports & Exposition Authority
  1,000      Convention Ctr Luxury Tax 1992 Ser A (MBIA Insured) .....................6.00      7/ 1/12     1,005,180
  2,000      State Contract 1993 Ser A ...............................................5.50      9/ 1/23     1,834,440
    500     Passaic County Utilities Authority, Solid Waste Ser 1991 A  ..............7.00     11/15/07       501,230
- - -----------                                                                                               -------------
  4,500                                                                                                     4,287,970
- - -----------                                                                                               -------------
            RESOURCE RECOVERY REVENUE (8.0%)
  1,000     Mercer County Improvement Authority, Solid Waste Refg Ser A of 1992
             (AMT) (FGIC Insured) ....................................................6.70      4/ 1/13     1,058,170
  2,000     Union County Utilities Authority, 1991 Ser A (AMT) .......................7.20      6/15/14     2,064,760
    900     Warren County Pollution Control Financing Authority, Warren Energy
             Resource Co Ltd Partnership Ser 1984 (MBIA Insured) .....................6.60     12/ 1/07       961,128
- - -----------                                                                                               -------------
  3,900                                                                                                     4,084,058
- - -----------                                                                                               -------------
            TRANSPORTATION FACILITIES REVENUE (11.6%)
  1,000     Delaware River & Bay Authority, Ser 1993 (MBIA Insured) ..................5.00      1/ 1/17       867,140
  1,500     New Jersey Highway Authority, Sr Parkway Refg 1992 Ser ...................6.25      1/ 1/14     1,519,275
  1,000     New Jersey Turnpike Authority, Ser C .....................................5.75      1/ 1/11       969,810
  3,000     Puerto Rico Highway & Transportation Authority, Refg Ser X  ..............5.25      7/ 1/21     2,558,610
- - -----------                                                                                               -------------
  6,500                                                                                                     5,914,835
- - -----------                                                                                               -------------
            WATER & SEWER REVENUE (19.9%)
  1,000     Atlantic City Municipal Utilities Authority, Refg Ser 1993  ..............5.75      5/ 1/17       947,590
  1,000     Lacey Municipal Utilities Authority, Ser 1993 A (MBIA Insured)  ..........5.50     12/ 1/19       928,970
    500     North Jersey District Supply Commissions, Wanaque North Ser 1991 B
             (MBIA Insured) ..........................................................6.25     11/15/17       507,815
  1,000     Northwest Bergen County Utilities Authority, Refg 1992 Ser (MBIA Insured) 6.00      7/15/13     1,007,180
            Passaic Valley Sewerage Commissioners,
  2,000      Ser D (AMBAC Insured) ...................................................5.75     12/ 1/13     1,945,180
  1,000      Refg Ser 1992 D (AMBAC Insured) .........................................5.80     12/ 1/18       970,740
            Passaic Valley Water Commission,
    210      1992 Ser A (FGIC Insured) ...............................................6.40     12/15/22       215,328
  1,790      1992 Ser A (FGIC Insured) (Prerefunded) .................................6.40     12/15/22     1,953,284
  1,500     Puerto Rico Aqueduct & Sewer Authority, Ser 1988 A .......................7.90      7/ 1/07     1,660,380
- - -----------                                                                                               -------------
 10,000                                                                                                    10,136,467
- - -----------                                                                                               -------------
 49,460     TOTAL MUNICIPAL BONDS (IDENTIFIED COST $48,433,477)                                            48,075,892
- - -----------                                                                                               -------------
            SHORT-TERM NEW JERSEY EXEMPT MUNICIPAL
             OBLIGATIONS (3.7%)
  1,200     New Jersey Economic Development Authority, El Dorado Terminal
             Ser 1984 A (Tender 6/1/94) ..............................................2.90*     5/ 1/01     1,200,000
    700     New Jersey Economic Development Authority, Toys R US Inc
- - -----------  (Tender 6/1/94) .........................................................2.85*     4/ 1/19       700,000
                                                                                                          -------------
  1,900     TOTAL SHORT-TERM NEW JERSEY EXEMPT MUNICIPAL                                                    1,900,000
                                                                                                          -------------
             OBLIGATIONS (IDENTIFIED COST $1,900,000) ................................
- - -----------

$51,360     TOTAL INVESTMENTS (IDENTIFIED COST $50,333,477) (a) ......................       98.0%         49,975,892
===========
            CASH AND OTHER ASSETS IN EXCESS OF LIABILITIES ...........................        2.0           1,025,701
                                                                                            ------        -------------
            NET ASSETS ...............................................................      100.0%        $51,001,593
                                                                                            ======        =============
<FN>
- - -------------
    +  Coupon rate for residual interest bonds. This rate resets periodically
       as the auction rate on the related short-term securities fluctuates.

    *  Variable or floating rate security. Coupon rate shown reflects current
       rate.

   (a) The aggregate cost for federal income tax purposes is $50,333,477; the
       aggregate gross unrealized appreciation is $1,249,219 and the gross
       unrealized depreciation is $1,606,804, resulting in net unrealized
       depreciation of $357,585.
</TABLE>

                      See Notes to Financial Statements


<PAGE>

         

DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
PORTFOLIO OF INVESTMENTS -- NEW YORK SERIES May 31, 1994 (unaudited)
- - -----------------------------------------------------------------------------

<TABLE>
<CAPTION>
 PRINCIPAL
 AMOUNT (IN                                                                          COUPON    MATURITY
 THOUSANDS)                                                                           RATE       DATE       VALUE
- - -----------                                                                        --------- ---------- ------------
<C>         <S>                                                                    <C>       <C>        <C>
            NEW YORK EXEMPT MUNICIPAL BONDS (86.3%)
            GENERAL OBLIGATION (2.6%)
$  100      New York City, 1990 Ser D ............................................. 6.00  %   8/1/06    $   97,798
   300      Puerto Rico, Pub Impr Refg Ser 1992 A ................................. 6.00      7/1/14       291,462
- - -----------                                                                                             ------------
   400                                                                                                     389,260
- - -----------                                                                                             ------------
            EDUCATIONAL FACILITIES REVENUE (16.2%)
            New York State Dormitory Authority,
   400       Manhattan College Ser 1992  .......................................... 6.50      7/1/19       406,168
 1,000       State University Ser 1993 A  ......................................... 5.25     5/15/15       873,470
   100       State University Ser 1990  ........................................... 7.00     5/15/16       104,895
   345       University of Rochester Ser 1987  .................................... 6.50      7/1/09       358,979
   500       University of Rochester Ser 1993 A  .................................. 5.625     7/1/12       466,910
   200       Upstate Community Colleges Ser 1991 A (Prerefunded)  ................. 7.30      7/1/21       227,644
- - -----------                                                                                             ------------
 2,545                                                                                                   2,438,066
- - -----------                                                                                             ------------
            ELECTRIC REVENUE (4.0%)
   500      New York State Power Authority, General Purpose Ser CC ................ 5.25      1/1/18       438,710
   200      Puerto Rico Electric Power Authority, Power Ser O ..................... 5.00      7/1/12       173,328
- - -----------                                                                                             ------------
   700                                                                                                     612,038
- - -----------                                                                                             ------------
            HOSPITAL REVENUE (2.9%)
            New York State Medical Care Facilities Finance Agency, Insured
             Hospital & Nursing Home -- FHA Insured Mortgage
   250       1993 Ser B ........................................................... 5.50     2/15/22       225,423
   200       1992 Ser A ........................................................... 6.70     8/15/23       204,420
- - -----------                                                                                             ------------
   450                                                                                                     429,843
- - -----------                                                                                             ------------
            INDUSTRIAL DEVELOPMENT/POLLUTION CONTROL REVENUE (13.6%)
            New York State Energy Research & Development Authority,
 1,000       Brooklyn Union Gas Co 1991 Ser A & B Special Linked RIBS & SAVRS
             (AMT)  ............................................................... 6.81     7/01/26     1,034,570
   500         Consolidated Edison Co of New York Ser 1991 A (AMT) ................ 6.00     3/15/28       467,190
   300         Long Island Lighting Co 1990 Ser A (AMT) ........................... 7.15      6/1/20       298,242
   250         Rochester Gas & Electric Corp Ser 1992 B (AMT) (MBIA Insured) ...... 6.50     5/15/32       255,498
- - -----------                                                                                             ------------
 2,050                                                                                                   2,055,500
- - -----------                                                                                             ------------
            NURSING & HEALTH RELATED FACILITIES REVENUE (1.6%)
   220      New York State Medical Care Facilities Finance Agency, Mental Health
             1991 Ser D  .......................................................... 7.40     2/15/18       238,555
- - -----------                                                                                             ------------
            MORTGAGE REVENUE -- SINGLE FAMILY (7.4%)
            New York State Mortgage Agency,
   500       Home Owners Ser 27  .................................................. 6.90      4/1/15       512,490
   100       Home Owners Ser UU (AMT)  ............................................ 7.75    10/ 1/23       106,360
   500      Puerto Rico Housing Finance Corporation, Portfolio Two GNMA-Backed Ser
             E (AMT) RIBS  ........................................................10.255+    8/4/25       500,000
- - -----------                                                                                             ------------
 1,100                                                                                                   1,118,850
- - -----------                                                                                             ------------
            PUBLIC FACILITIES REVENUE (5.3%)
   350      New York City Cultural Resources Trust, The Museum of Modern Art Refg
             Ser 1993 A  .......................................................... 5.40     1/ 1/12       328,804
   500      United Nations Development Corporation, Sr Lien 1992 Refg Ser A  ...... 6.00     7/ 1/26       474,150
- - -----------                                                                                             ------------
   850                                                                                                     802,954
- - -----------                                                                                             ------------
            RESOURCE RECOVERY REVENUE (3.5%)
   500      Oneida-Herkimer Solid Waste Management Authority, Ser 1992  ........... 6.65      4/1/05       522,720
- - -----------                                                                                             ------------


<PAGE>

         
<PAGE>
<CAPTION>
DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
PORTFOLIO OF INVESTMENTS -- NEW YORK SERIES May 31, 1994 (unaudited) (continued)
- - -----------------------------------------------------------------------------------------------------------------

 PRINCIPAL
 AMOUNT (IN                                                                          COUPON    MATURITY
 THOUSANDS)                                                                           RATE       DATE       VALUE
- - -----------                                                                        --------- ---------- ------------
<C>         <S>                                                                       <C>      <C>        <C>
            TAX ALLOCATION REVENUE (4.0%)
$   700     Grand Central District Management Association Inc, Cap Impr Refg Ser
             1994  ................................................................5.25 %     1/1/22    $   604,372
- - -----------                                                                                             ------------
            TRANSPORTATION FACILITIES REVENUE (8.5%)
    500     Triborough Bridge & Tunnel Authority, Gen Pur Ser 1993 B  .............5.00       1/1/20        425,755
  1,000     Puerto Rico Highway & Transportation Authority Refg Ser X  ............5.25       7/1/21        852,870
- - -----------                                                                                             ------------
  1,500                                                                                                   1,278,625
- - -----------                                                                                             ------------
            WATER & SEWER REVENUE (13.2%)
            New York City Municipal Water Finance Authority,
  1,000      1993 Ser A  ..........................................................6.00      6/15/17        969,640
    600      1994 Ser B  ..........................................................5.375     6/15/07        571,074
    400     Puerto Rico Aqueduct & Sewer Authority, Ser 1988 A ....................7.90       7/1/07        442,768
- - -----------                                                                                             ------------
  2,000                                                                                                   1,983,482
- - -----------                                                                                             ------------
            OTHER REVENUE (3.5%)
    500     New York Local Government Assistance Corporation, Ser 1991 C  .........7.00       4/1/10        533,840
- - -----------                                                                                             ------------
 13,515     TOTAL MUNICIPAL BONDS (IDENTIFIED COST $13,258,345) ...................                      13,008,105
- - -----------                                                                                             ------------
            SHORT-TERM NEW YORK EXEMPT MUNICIPAL OBLIGATIONS (9.3%)
    700     New York City Cultural Resources Trust, Solomon R Guggenheim
             Foundation Ser 1990 B (Tender 6/1/94)  ...............................3.00*     12/1/15        700,000
    700     Port Authority of New York & New Jersey, Series 2 (Tender 6/1/94)  ....3.00*      5/1/19        700,000
- - -----------                                                                                             ------------
  1,400     TOTAL SHORT-TERM NEW YORK EXEMPT MUNICIPAL OBLIGATIONS (IDENTIFIED
             COST $1,400,000)  ....................................................                       1,400,000
- - -----------                                                                                             ------------
$14,915     TOTAL INVESTMENTS (IDENTIFIED COST $14,658,345) (a) ...................       95.6%          14,408,105
===========
            CASH AND OTHER ASSETS IN EXCESS OF LIABILITIES ........................        4.4              662,542
                                                                                         ------        ------------
            NET ASSETS ............................................................      100.0%         $15,070,647
                                                                                         ======        ============
<FN>
- - --------------
    +  Current coupon rate for residual interest bonds. This rate resets
       periodically as the auction on the related short-term securities
       fluctuates.

    *  Variable or floating rate security. Coupon rate shown reflects current
       rate.

   (a) The aggregate cost for federal income tax purposes is $14,658,345; the
       aggregate gross unrealized appreciation is $209,420 and the aggregate
       gross unrealized depreciation is $459,660, resulting in net unrealized
       depreciation of $250,240.
</TABLE>
                      See Notes to Financial Statements


<PAGE>

         
<PAGE>
DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
PORTFOLIO OF INVESTMENTS -- OHIO SERIES May 31, 1994 (unaudited)
- - -----------------------------------------------------------------------------

<TABLE>
<CAPTION>
 PRINCIPAL
 AMOUNT (IN                                                                              COUPON   MATURITY
 THOUSANDS)                                                                               RATE      DATE       VALUE
- - -----------                                                                            -------- ---------- ------------
<C>         <S>                                                                        <C>      <C>        <C>
            OHIO EXEMPT MUNICIPAL BONDS (88.3%)
            GENERAL OBLIGATION (6.2%)
$  300      Bedford School District, Ser 1993 .........................................6.25 %    12/1/13   $  300,681
   500      Columbus School District, Renovation & Impr Ser 1992 (FGIC Insured)
             (Prerefunded) ............................................................6.65      12/1/12      555,390
   180      Euclid, Ser 1991 ..........................................................6.625     12/1/11      188,717
   100      Euclid City School District, School Impr Ser 1991 .........................7.10      12/1/11      109,117
   100      Gahanna, Ser A ............................................................7.00       6/1/12      108,343
   250      Hilliard City School District, School Impr Refg Ser 1992 (FGIC Insured)  ..6.55      12/1/05      272,820
   100      South Euclid, Unltd Tax Recreational ......................................7.00      12/1/11      109,477
- - -----------                                                                                                ------------
 1,530                                                                                                      1,644,545
- - -----------                                                                                                ------------

            EDUCATIONAL FACILITIES REVENUE (18.0%)
            Ohio Higher Educational Facility Commission,
   500       Case Western Reserve University, Ser 1992 ................................6.00      10/1/22      493,905
 1,000       John Carroll University Refg .............................................5.30     11/15/14      891,110
 1,000       Oberlin College, Ser 1993 ................................................5.375     10/1/15      907,400
            University of Cincinnati,
 1,000       General Receipts Ser R7 ..................................................5.20      6/ 1/10      918,430
   500       General Receipts Ser G ...................................................7.00      6/ 1/11      536,535
 1,000      University of Toledo, Ser 1992 A (FGIC Insured) ...........................5.90       6/1/20      974,080
- - -----------                                                                                                ------------
 5,000                                                                                                      4,721,460
- - -----------                                                                                                ------------
            ELECTRIC REVENUE (5.0%)
   500      Hamilton Refg 1992 Ser A (FGIC Insured) ..................................6.00      10/15/12      505,335
   500      Ohio Municipal Electric Generation Agency Joint Venture 5, Belleville
             Hydro 1993 Certificates (AMBAC Insured) ..................................5.375     2/15/13      462,985
   400      Puerto Rico Electric Power Authority, Power Ser O .........................5.00      7/ 1/12      346,656
- - -----------                                                                                                ------------
 1,400                                                                                                      1,314,976
- - -----------                                                                                                ------------
            HOSPITAL REVENUE (21.0%)
            Akron Bath & Copley Joint Township Hospital District,
   500       General Medical Center Ser 1993 (AMBAC Insured) ..........................5.50       1/1/21      455,250
 1,000       Summa Health Ser 1992 A ..................................................6.25     11/15/07    1,012,200
 1,000      Clermont County, Mercy Health Ser 1991 Special MLDS .......................6.593     10/5/21    1,041,210
   490      Cuyahoga County, Meridia Health Ser 1990 ..................................7.25      8/15/19      516,994
            Hamilton County,
   475       Bethesda Hospital Inc Ser 1986 A .........................................7.00      1/ 1/09      504,897
   500       Franciscan Sisters of the Poor/Providence Hospital Ser 1992  .............6.875      7/1/15      488,820
   200       Saint Francis-Saint George Hospital/Franciscan Sisters of the Poor Health
              Systems Inc Ser 1985 ....................................................9.375      7/1/15      212,488
            Lucas County,
   100       Flower Memorial Hospital Ser A ...........................................8.125    12/ 1/11      109,451
 1,000       Toledo Hospital Impr & Refg Ser 1993 (MBIA Insured) ......................5.00     11/15/22      840,460
   300      Middleburg Heights, Southwest General Hospital Ser 1991 ...................7.20      8/15/19      323,226
- - -----------                                                                                                ------------
 5,565                                                                                                      5,504,996
- - -----------                                                                                                ------------
            INDUSTRIAL DEVELOPMENT/POLLUTION CONTROL REVENUE (3.9%)
   400      Ashtabula County, Ashland Oil Inc Refg 1992 Ser A .........................6.90      5/ 1/10      412,708
            Ohio Economic Development Authority,
   500       Dayton Power & Light Co Collateralized Refg 1992 Ser A ...................6.40      8/15/27      498,570
   100       Superior Forge & Steel Corp Ser 1991-3 (AMT) .............................7.625     6/ 1/11      104,869
- - -----------                                                                                                ------------
 1,000                                                                                                      1,016,147
- - -----------                                                                                                ------------


<PAGE>

         
<PAGE>
<CAPTION>
DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
PORTFOLIO OF INVESTMENTS -- OHIO SERIES May 31, 1994 (unaudited) (continued)
- - -----------------------------------------------------------------------------------------------------------------

 PRINCIPAL
 AMOUNT (IN                                                                              COUPON   MATURITY
 THOUSANDS)                                                                               RATE      DATE       VALUE
- - -----------                                                                            -------- ---------- ------------
<C>         <S>                                                                       <C>      <C>        <C>
            MORTGAGE REVENUE -- SINGLE FAMILY (3.0%)
$   800     Ohio Housing Finance Agency, GNMA-Backed 1990 Ser A-1&2
- - -----------
             Special Linked RIBS & SAVRS (AMT) ........................................6.761%    3/24/31   $   801,128
                                                                                                           ------------

            PUBLIC FACILITIES REVENUE (7.0%)
            Ohio Building Authority,
  1,000      1993 Ser A ...............................................................5.50      10/1/12       930,050
  1,000      Workers' Compensation/William Green Building 1993 Ser A ..................5.125      4/1/10       902,740
- - -----------                                                                                                ------------
  2,000                                                                                                      1,832,790
- - -----------                                                                                                ------------

            TRANSPORTATION FACILITIES REVENUE (8.4%)
    400     Guam, Highway 1992 Ser A (Capital Guaranty Insured) .......................6.30       5/1/12       413,372
  1,000     Ohio Turnpike Commission, 1994 Ser A ......................................5.75      2/15/24       945,610
  1,000     Puerto Rico Highway & Transportation Authority, Refg Ser X ................5.25       7/1/21       852,870
- - -----------                                                                                                ------------
  2,400                                                                                                      2,211,852
- - -----------                                                                                                ------------
            WATER & SEWER REVENUE (15.8%)
   1000     Clermont County, Sewer Refg (AMBAC Insured) ...............................5.20      12/1/21       877,120
            Cleveland, Waterworks
    300      Ser F 1992 B (AMBAC Insured) .............................................6.25       1/1/16       305,166
    500      Refg Ser G 1993 (MBIA Insured) ...........................................5.50       1/1/21       461,975
    300     Columbus, Sewerage Refg Ser 1992 ..........................................6.25       6/1/08       308,298
    500     Hamilton! Water 1991 Ser A (MBIA Insured) .................................6.30     10/15/21       508,440
  1,000     Montgomery County, Water Ser 1992 (FGIC Insured) ..........................6.25     11/15/17     1,014,510
    600     Puerto Rico Aqueduct & Sewer Authority, Ser 1988 A ........................7.90       7/1/07       664,152
- - -----------                                                                                                ------------
  4,200                                                                                                      4,139,661
- - -----------                                                                                                ------------

 23,895     TOTAL MUNICIPAL BONDS (IDENTIFIED COST $23,425,700)                                             23,187,555
- - -----------                                                                                                ------------

            SHORT-TERM OHIO EXEMPT MUNICIPAL OBLIGATION (3.8%)
  1,000     Columbus, Sewer Ser 1986 B (Tender 6/1/94) ................................2.85*      6/1/11     1,000,000
- - -----------                                                                                                ------------
             (Identified Cost $1,000,000)

$24,895     TOTAL INVESTMENTS (IDENTIFIED COST $24,425,700) (A) .......................        92.1%        24,187,555
===========
            CASH AND OTHER ASSETS IN EXCESS OF LIABILITIES ............................         7.9          2,074,710
                                                                                              ------       ------------
            NET ASSETS ................................................................       100.0%       $26,262,265
                                                                                              ======       ============
<FN>
- - --------------
    *  Variable or floating rate security. Coupon rate shown reflects current
       rate.

   (a) The aggregate cost for federal income tax purposes is $24,425,700; the
       aggregate gross unrealized appreciation is $489,672 and the aggregate
       gross unrealized depreciation is $727,817, resulting in net unrealized
       depreciation of $238,145.
</TABLE>

                      See Notes to Financial Statements


<PAGE>

         
<PAGE>
DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
PORTFOLIO OF INVESTMENTS -- PENNSYLVANIA SERIES May 31, 1994 (unaudited)
- - -----------------------------------------------------------------------------

<TABLE>
<CAPTION>
 PRINCIPAL
 AMOUNT (IN                                                                              COUPON    MATURITY
 THOUSANDS)                                                                               RATE       DATE       VALUE
- - -----------                                                                            --------- ---------- ------------
<S>         <C>                                                                        <C>       <C>        <C>
            PENNSYLVANIA EXEMPT MUNICIPAL BONDS (94.5%)
            GENERAL OBLIGATION (7.4%)
$ 2,000     Berks County, Second Ser 1992 (FGIC Insured) ..............................5.75 %    11/15/12   $ 1,935,920
    300     McKeesport Area School District, Refg Ser 1991 ............................5.00        4/1/13       257,613
  1,000     Reading, Ser of 1992 (AMBAC Insured) (Prerefunded) ........................6.50      11/15/12     1,087,980
    600     Puerto Rico, Pub Impr Refg Ser 1992 A .....................................6.00        7/1/14       582,924
- - -----------                                                                                                 ------------
  3,900                                                                                                       3,864,437
- - -----------                                                                                                 ------------

            EDUCATIONAL FACILITIES REVENUE (23.9%)
  1,000     Delaware County Authorty, Villanova University Ser 1993 (MBIA Insured)  ...5.50        8/1/23       902,290
  1,000     Northeastern Pennsylvania Hospital & Education Authority, Kings College
             Ser B 1993 ...............................................................6.00       7/15/11       955,650
            Pennsylvania Higher Educational Facilities Authority,
    750      Allegheny College Impr & Refg Ser 1993 B .................................6.00       11/1/22       695,242
    200      Hahneman University Ser of 1989 (MBIA Insured) ...........................7.20        7/1/19       218,388
    500      Medical College of Pennsylvania 1991 Ser A ...............................7.25        3/1/11       523,290
    500      Temple University First Ser 1991 (MBIA Insured) ..........................6.50        4/1/21       511,050
  1,000      Thomas Jefferson University 1992 Ser A ...................................6.625      8/15/09     1,048,610
  1,000      Thomas Jefferson University 1993 Ser A ...................................5.30       11/1/15       882,180
            Pennsylvania State University,
  1,750      Ser 1991 (Prerefunded) ...................................................6.75        7/1/10     1,938,738
  1,000      Second Refg Ser 1992 .....................................................5.50       8/15/16       912,720
  1,000      Ser B 1992 ...............................................................5.50       8/15/16       912,720
  1,000     Swarthmore Borough Authority, Swarthmore College Ser 1992 .................6.00       9/15/20       983,650
  2,000     University of Pittsburgh, Cap 1992 Ser A (MBIA Insured) ...................6.125       6/1/21     1,985,620
- - -----------                                                                                                 ------------
 12,700                                                                                                      12,470,148
- - -----------                                                                                                 ------------

            ELECTRIC REVENUE (1.7%)
  1,000     Puerto Rico Electric Power Authority, Power Ser O .........................5.00        7/1/12       866,640
- - -----------                                                                                                 ------------

            HOSPITAL REVENUE (20.7%)
            Allegheny County Hospital Development Authority,
    200      Mercy Hospital of Pittsburgh Ser 1991 (AMBAC Insured) ....................6.75        4/1/21       206,548
  1,000      Ohio Valley General Hospital Refg Ser 1993 ...............................5.87        4/1/11       902,240
  1,000      Presbyterian University Health System Inc Ser 1992 B (MBIA Insured)  .....6.00       11/1/12       991,130
  1,000     Berks County Municipal Authority, Reading Hospital & Medical Center (MBIA
             Insured) .................................................................5.50       10/1/08       976,670
    500     Chester County Health & Education Facilities Authority, Bryn Mawr
             Rehabilitation Hospital Refg Ser 1992 (Prerefunded) ......................6.75        7/1/14       553,745
  3,000     Doylestown Hospital Authority, Doylestown Hospital 1993 Ser B (AMBAC
             Insured) .................................................................5.00        7/1/23     2,493,060
    100     Erie County Hospital Authority, Hamot Medical Center 1991 Ser A (AMBAC
             Insured) .................................................................7.10       2/15/10       107,332
            Philadelphia Hospital & Higher Education Facilities Authority,
  1,750      Chestnut Hill Hospital Ser of 1992 .......................................6.375     11/15/11     1,727,268
  1,000      Temple University Hospital 1993 Ser A ....................................6.50      11/15/08       992,550
  2,000      The Children's Hospital Ser A of 1993 ....................................5.375      2/15/14     1,767,940
    100     Scranton -- Lackawanna Health & Welfare Authority, Mercy Health
             Ser 1989 B (MBIA Insured) ................................................6.90        1/1/23       104,544
- - -----------                                                                                                 ------------
 11,650                                                                                                      10,823,207
- - -----------                                                                                                 ------------


<PAGE>

         
<PAGE>
<CAPTION>
DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
PORTFOLIO OF INVESTMENTS -- PENNSYLVANIA SERIES May 31, 1994 (unaudited) (continued)
- - -----------------------------------------------------------------------------------------------------------------

 PRINCIPAL
 AMOUNT (IN                                                                              COUPON    MATURITY
 THOUSANDS)                                                                               RATE       DATE       VALUE
- - -----------                                                                            --------- ---------- ------------
<C>         <S>                                                                       <C>      <C>        <C>
            INDUSTRIAL DEVELOPMENT/POLLUTION CONTROL REVENUE (3.7%)
$  500      Lehigh County Industrial Development Authority, Strawbridge & Clothier
             Refg Ser of 1991 ......................................................... 7.20  %  12/15/01   $  544,465
            Montgomery County Industrial Development Authority,
   150       Philadelphia Electric Co 1991 Ser A (AMT) ................................ 7.60       4/1/21      156,134
 1,000       Philadelphia Electric Co Refg 1991 Ser B (MBIA Insured) .................. 6.70      12/1/21    1,033,320
   200      Pennsylvania Industrial Development Authority, Ser A 1991 (Prerefunded)  .. 7.00       1/1/11      223,364
- - -----------                                                                                                 ------------
 1,850                                                                                                       1,957,283
- - -----------                                                                                                 ------------
            MORTGAGE REVENUE -- MULTI-FAMILY (1.0%)
            Pennsylvania Housing Finance Agency,
   100       Moderate Rehab Sec 8 Assisted Issue B .................................... 9.00       8/1/01      105,729
   500       Ser 1992-35 D RIBS (AMT) ................................................. 8.769+     4/1/25      428,750
- - -----------                                                                                                 ------------
   600                                                                                                         534,479
- - -----------                                                                                                 ------------
            MORTGAGE REVENUE -- SINGLE FAMILY (10.2%)
   145      Allegheny County Residential Finance Authority, GNMA-Backed
             1991 Ser Q (AMT) ......................................................... 7.40      12/1/22      150,390
            Pennsylvania Housing Finance Agency,
 2,000       Ser 1993-37A ............................................................. 5.45      10/1/17    1,747,120
   170       Ser 1990-28 (AMT) ........................................................ 7.65      10/1/23      177,307
 2,000       Ser 1991-31 B&C Special Linked RIBS & SAVRS (AMT) ........................ 6.858     10/1/23    2,032,520
   160      Pittsburgh Urban Development Authority, 1991 Ser A (AMT) .................. 7.40      4/ 1/24      164,994
 1,000      Puerto Rico Housing Finance Corporation, Portfolio One GNMA-Backed Ser C  . 6.85     10/15/23    1,025,570
- - -----------                                                                                                 ------------
 5,475                                                                                                       5,297,901
- - -----------                                                                                                 ------------
            RESOURCE RECOVERY REVENUE (2.6%)
   300      Cambria County Industrial Development Authority, Cambria Cogen Co Ser 1989
             F-1 (AMT) ................................................................ 7.75       9/1/19      318,014
 1,000      Montgomery County Industrial Development Authority, Ser 1989  ............. 7.50       1/1/12    1,056,150
- - -----------                                                                                                 ------------
 1,300                                                                                                       1,374,164
- - -----------                                                                                                 ------------
            STUDENT LOAN REVENUE (2.9%)
            Pennsylvania Higher Education Assistance Agency,
 1,000       1988 Ser D (AMT) (AMBAC Insured) ......................................... 6.05       1/1/19      967,660
   500       1991 Ser B RIBS (AMT) (AMBAC Insured) ....................................10.192+     9/3/26      532,500
- - -----------                                                                                                 ------------
 1,500                                                                                                       1,500,160
- - -----------                                                                                                 ------------
            TRANSPORTATION FACILITIES REVENUE (9.2%)
 1,000      Guam, Highway 1992 Ser A (Capital Guaranty Insured) ....................... 6.30       5/1/12    1,033,430
   500      Allegheny County, Greater Pittsburgh Intl Airport Ser 1992 (AMT) (FSA
             Insured) ................................................................. 6.625      1/1/22      512,600
 2,000      Pennsylvania Turnpike Commission, Ser O of 1992 (FGIC Insured)  ........... 6.00      12/1/12    1,995,540
 1,000      Pittsburgh Public Parking Authority, Ser 1992 A (FGIC Insured)  ........... 5.875     12/1/12      981,750
   300      Puerto Rico Highway Authority, Ser Q ...................................... 6.00       7/1/20      286,677
- - -----------                                                                                                 ------------
 4,800                                                                                                       4,809,997
- - -----------                                                                                                 ------------
            WATER & SEWER REVENUE (8.3%)
            Bethlehem Authority, Northampton & Lehigh Counties
 1,000       Refg Ser of 1994 (MBIA Insured) .......................................... 4.875    11/15/14      841,410
 2,500       Refg Ser of 1994 (MBIA Insured) .......................................... 5.30     11/15/17    2,218,000
   150      Warrington Township Municipal Authority, Ser 1991 (FGIC Insured)  ......... 7.10      12/1/21      161,627
 1,000      Puerto Rico Aqueduct & Sewer Authority, Ser 1988 A ........................ 7.90       7/1/07    1,106,920
- - -----------                                                                                                 ------------
 4,650                                                                                                       4,327,957
- - -----------                                                                                                 ------------


<PAGE>

         
<PAGE>
<CAPTION>
DEAN WITTER MULTI-STATE MUNICIPAL SERIES TRUST
PORTFOLIO OF INVESTMENTS -- PENNSYLVANIA SERIES May 31, 1994 (unaudited) (continued)
- - -----------------------------------------------------------------------------------------------------------------

 PRINCIPAL
 AMOUNT (IN                                                                              COUPON    MATURITY
 THOUSANDS)                                                                               RATE       DATE       VALUE
- - -----------                                                                            --------- ---------- ------------
<C>         <S>                                                                       <C>      <C>        <C>
            OTHER REVENUE (2.9%)
$ 1,500     Pennsylvania Finance Authority, Municipal Cap Impr Refg Ser 1993  .........6.60  %   11/1/09    $ 1,532,460
- - -----------                                                                                                 ------------
 50,925     TOTAL MUNICIPAL BONDS (IDENTIFIED COST $49,770,553) .......................                      49,358,833
- - -----------                                                                                                 ------------

            SHORT-TERM PENNSYLVANIA EXEMPT MUNICIPAL OBLIGATION (3.8%)
  2,000     Delaware County Industrial Development Authority, United Parcel Service
             Inc Ser 1985 (Tender 6/1/94) (Identified Cost $2,000,000) ................2.85*     12/1/15      2,000,000
- - -----------                                                                                                 ------------

$52,925     TOTAL INVESTMENTS (IDENTIFIED COST $51,770,553) (A) .......................         98.3%        51,358,833
===========
            CASH AND OTHER ASSETS IN EXCESS OF LIABILITIES ............................          1.7            905,722
                                                                                               ------       ------------
            NET ASSETS ................................................................        100.0%       $52,264,555
                                                                                               ======       ============
<FN>
- - ----------------
    +  Coupon rate for residual interest bonds. This rate resets periodically
       as the auction rate on the related short-term securities fluctuates.

    *  Variable or floating rate security. Coupon rate shown reflects current
       rate.

   (a) The aggregate cost for federal income tax purpose is $51,770,553; the
       aggregate gross unrealized appreciation is $1,214,841 and the gross
       unrealized depreciation in $1,626,561, resulting in net unrealized
       depreciation of $411,720.
</TABLE>




                      See Notes to Financial Statements


<PAGE>

         
<PAGE>
TRUSTEES
- - -------------------------
Jack F. Bennett
Michael Bozic
Charles A. Fiumefreddo
Edwin J. Garn
John R. Haire
Dr. John E. Jeuck
Dr. Manuel H. Johnson
Paul Kolton
Michael E. Nugent
Philip J. Purcell
John L. Schroeder
Edward R. Telling

OFFICERS
- - -------------------------
Charles A. Fiumefreddo
Chairman and Chief Executive Officer

Sheldon Curtis
Vice President, Secretary and General Counsel

James F. Willison
Vice President

Thomas F. Caloia
Treasurer

TRANSFER AGENT
- - -------------------------
Dean Witter Trust Company
Harborside Financial Center - Plaza Two
Jersey City, New Jersey 07311

LEGAL COUNSEL
- - -------------------------
Sheldon Curtis
Two World Trade Center
New York, New York 10048

INDEPENDENT ACCOUNTANTS
- - -------------------------
Price Waterhouse
1177 Avenue of the Americas
New York, New York 10036

INVESTMENT MANAGER
- - -------------------------
Dean Witter InterCapital Inc.
Two World Trade Center
New York, New York 10048

The financial statements included herein have been taken from the records of
the Fund without examination by the independent accountants and accordingly
they do not express an opinion thereon.

This report is submitted for the general information of shareholders of the
Fund. For more detailed information about the Fund, its officers and
trustees, fees, expenses and other pertinent information, please see the
prospectus of the Fund.

This report is not authorized for distribution to prospective investors in
the Fund unless preceded or accompanied by an effective prospectus.

DEAN WITTER
MULTI-STATE
MUNICIPAL
SERIES TRUST

Semiannual Report
May 31, 1994



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