THORNBURG INVESTMENT TRUST
NSAR-B, 1995-11-29
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<PAGE>      PAGE  1
000 B000000 09/30/95
000 C000000 0000816153
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0.a
000 J000000 A
001 A000000 THORNBURG INVESTMENT TRUST
001 B000000 811-5201
001 C000000 5059840200
002 A000000 119 EAST MARCY STREET SUITE 202
002 B000000 SANTA FE
002 C000000 NM
002 D010000 87501
003  000000 N
004  000000 N
005  000000 N
006  000000 N
007 A000000 Y
007 B000000  5
007 C010100  1
007 C020100 THORNBURG LIMITED TERM U.S. GOVERNMENT FUND
007 C030100 N
007 C010200  2
007 C020200 THORNBURG NEW MEXICO INTERMEDIATE MUNICIPAL
007 C030200 N
007 C010300  3
007 C020300 THORNBURG INTERMEDIATE MUNICIPAL - NATIONAL
007 C030300 N
007 C010400  4
007 C020400 THORNBURG LIMITED TERM INCOME FUND
007 C030400 N
007 C010500  5
007 C020500 THORNBURG FLORIDA INTERMEDIATE MUNICIPAL
007 C030500 N
007 C010600  6
007 C010700  7
007 C010800  8
007 C010900  9
007 C011000 10
008 A00AA01 THORNBURG MANAGEMENT COMPANY
008 B00AA01 A
008 C00AA01 801-17853
008 D01AA01 SANTA FE
008 D02AA01 NM
008 D03AA01 87501
011 A00AA01 THORNBURG SECURITIES CORPORATION
011 B00AA01 8-31249
011 C01AA01 SANTA FE
<PAGE>      PAGE  2
011 C02AA01 NM
011 C03AA01 87501
013 A00AA01 MCGLADREY & PULLEN
013 B01AA01 NEW YORK
013 B02AA01 NY
013 B03AA01 10017
013 B04AA01 2146
015 A00AA01 STATE STREET BANK & TRUST
015 B00AA01 C
015 C01AA01 NORTH QUINCY
015 C02AA01 MA
015 C03AA01 02171
015 E06AA01 X
018  00AA00 Y
019 A00AA00 Y
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019 C00AA00 -THORNBURG
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022 B000001 13-2638166
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022 D000001     25388
022 A000002 MERRILL LYNCH
022 B000002 13-5674085
022 C000002     34399
022 D000002     20700
022 A000003 PRUDENTIAL SECURITIES
022 B000003 22-2347336
022 C000003     33353
022 D000003      8004
022 A000004 CS FIRST BOSTON
022 B000004 13-5659485
022 C000004     22221
022 D000004     14121
022 A000005 GRUNTAL AND CO.
022 B000005 13-3201805
022 C000005     21739
022 D000005     14553
022 A000006 NUVEEN AND CO.
022 B000006 36-2639476
022 C000006     16731
<PAGE>      PAGE  3
022 D000006      8400
022 A000007 COASTAL SECURITIES
022 B000007 76-0358048
022 C000007     16722
022 D000007      6087
022 A000008 MCDONALD AND CO.
022 B000008 34-1391952
022 C000008     15880
022 D000008      4523
022 A000009 MORGAN STANLEY
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022 D000009      6100
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<PAGE>      PAGE  4
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<PAGE>      PAGE  5
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<PAGE>      PAGE  6
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<PAGE>      PAGE  7
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<PAGE>      PAGE  8
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<PAGE>      PAGE  9
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<PAGE>      PAGE  10
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<PAGE>      PAGE  11
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<PAGE>      PAGE  12
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<PAGE>      PAGE  13
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<PAGE>      PAGE  14
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<PAGE>      PAGE  15
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<PAGE>      PAGE  16
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<PAGE>      PAGE  17
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<PAGE>      PAGE  18
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<PAGE>      PAGE  19
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<PAGE>      PAGE  20
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042 B000500   0
042 C000500   0
042 D000500 100
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042 F000500   0
042 G000500   0
042 H000500   0
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045  000500 Y
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<PAGE>      PAGE  21
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048 G020500 0.000
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062 A000500 Y
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062 G000500   0.0
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064 B000500 N
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<PAGE>      PAGE  22
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<PAGE>      PAGE  23
074 Y000500        0
075 A000500        0
075 B000500    11818
076  000500     0.00
SIGNATURE   JOHN ARIOLA                                  
TITLE       ASSISTANT V.P.      
 

WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000816153
<NAME> THORNBURG INVESTMENT TRUST
<SERIES>
   <NUMBER> 1
   <NAME> THORNBURG LIMITED TERM U.S. GOVERNMENT FUND CLASS (A)
       
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WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000816153
<NAME> THORNBURG INVESTMENT TRUST
<SERIES>
   <NUMBER> 1
   <NAME> THORNBURG LIMITED TERM U.S. GOVERNMENT FUND CLASS (B)
       
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</TABLE>

<TABLE> <S> <C>

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<CIK> 0000816153
<NAME> THORNBURG INVESTMENT TRUST
<SERIES>
   <NUMBER> 1
   <NAME> THORNBURG LIMITED TERM U.S. GOVERNMENT FUND CLASS (C)
       
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000816153
<NAME> THORNBURG INVESTMENT TRUST
<SERIES>
   <NUMBER> 2
   <NAME> THORNBURG NEW MEXICO INTERMEDIATE MUNICIPAL FUND (A)
       
<S>                             <C>
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000816153
<NAME> THORNBURG INVESTMENT TRUST
<SERIES>
   <NUMBER> 2
   <NAME> THORNBURG NEW MEXICO INTERMEDIATE MUNICIPAL FUND (B)
       
<S>                             <C>
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<FISCAL-YEAR-END>                          SEP-30-1995
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<NUMBER-OF-SHARES-REDEEMED>                   (76,399)
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<ACCUMULATED-GAINS-PRIOR>                    (192,445)
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000816153
<NAME> THORNBURG INVESTMENT TRUST
<SERIES>
   <NUMBER> 2
   <NAME> THORNBURG NEW MEXICO INTERMEDIATE MUNICIPAL FUND (C)
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
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<NUMBER-OF-SHARES-REDEEMED>                       (31)
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<NET-CHANGE-IN-ASSETS>                     (7,166,676)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                    (192,445)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          865,405
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              1,489,534
<AVERAGE-NET-ASSETS>                       138,291,954
<PER-SHARE-NAV-BEGIN>                            12.71
<PER-SHARE-NII>                                    .52
<PER-SHARE-GAIN-APPREC>                            .41
<PER-SHARE-DIVIDEND>                             (.52)
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              13.12
<EXPENSE-RATIO>                                   1.66
<AVG-DEBT-OUTSTANDING>                               0
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000816153
<NAME> THORNBURG INVESTMENT TRUST
<SERIES>
   <NUMBER> 3
   <NAME> THORNBURG INTERMEDIATE MUNICIPAL FUND (A)
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          SEP-30-1995
<PERIOD-END>                               SEP-30-1995
<INVESTMENTS-AT-COST>                      218,265,472
<INVESTMENTS-AT-VALUE>                     228,825,230
<RECEIVABLES>                                4,367,700
<ASSETS-OTHER>                                 164,924
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             233,357,854
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    1,475,777
<TOTAL-LIABILITIES>                          1,475,777
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   224,626,550
<SHARES-COMMON-STOCK>                       17,288,644
<SHARES-COMMON-PRIOR>                       16,323,587
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                    (3,304,231)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                    10,559,758
<NET-ASSETS>                               231,882,077
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                           13,651,703
<OTHER-INCOME>                                       0
<EXPENSES-NET>                             (2,185,139)
<NET-INVESTMENT-INCOME>                     11,466,564
<REALIZED-GAINS-CURRENT>                   (2,097,030)
<APPREC-INCREASE-CURRENT>                    9,826,700
<NET-CHANGE-FROM-OPS>                       19,196,234
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                 (11,325,918)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      3,708,074
<NUMBER-OF-SHARES-REDEEMED>                (3,260,168)
<SHARES-REINVESTED>                            517,151
<NET-CHANGE-IN-ASSETS>                      23,682,482
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                  (1,207,201)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        1,353,189
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              2,376,918
<AVERAGE-NET-ASSETS>                       216,750,807
<PER-SHARE-NAV-BEGIN>                            12.73
<PER-SHARE-NII>                                    .68
<PER-SHARE-GAIN-APPREC>                            .45
<PER-SHARE-DIVIDEND>                             (.68)
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              13.18
<EXPENSE-RATIO>                                   1.00
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000816153
<NAME> THORNBURG INVESTMENT TRUST
<SERIES>
   <NUMBER> 3
   <NAME> THORNBURG INTERMEDIATE MUNICIPAL FUND (B)
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          SEP-30-1995
<PERIOD-END>                               SEP-30-1995
<INVESTMENTS-AT-COST>                      218,265,472
<INVESTMENTS-AT-VALUE>                     228,825,230
<RECEIVABLES>                                4,367,700
<ASSETS-OTHER>                                 164,924
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             233,357,854
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    1,475,777
<TOTAL-LIABILITIES>                          1,475,777
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   224,626,550
<SHARES-COMMON-STOCK>                                0
<SHARES-COMMON-PRIOR>                           26,895
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                    (3,304,231)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                    10,559,758
<NET-ASSETS>                               231,882,077
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                           13,651,703
<OTHER-INCOME>                                       0
<EXPENSES-NET>                             (2,185,139)
<NET-INVESTMENT-INCOME>                     11,466,564
<REALIZED-GAINS-CURRENT>                   (2,097,030)
<APPREC-INCREASE-CURRENT>                    9,826,700
<NET-CHANGE-FROM-OPS>                       19,196,234
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                     (49,201)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        192,283
<NUMBER-OF-SHARES-REDEEMED>                  (221,608)
<SHARES-REINVESTED>                              2,430
<NET-CHANGE-IN-ASSETS>                      23,682,482
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                  (1,207,201)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        1,353,189
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              2,376,918
<AVERAGE-NET-ASSETS>                       216,750,807
<PER-SHARE-NAV-BEGIN>                            12.73
<PER-SHARE-NII>                                    .59
<PER-SHARE-GAIN-APPREC>                            .40
<PER-SHARE-DIVIDEND>                             (.59)
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              13.13
<EXPENSE-RATIO>                                   1.65
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000816153
<NAME> THORNBURG INVESTMENT TRUST
<SERIES>
   <NUMBER> 3
   <NAME> THORNBURG INTERMEDIATE MUNICIPAL FUND (C)
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          SEP-30-1995
<PERIOD-END>                               SEP-30-1995
<INVESTMENTS-AT-COST>                      218,265,472
<INVESTMENTS-AT-VALUE>                     228,825,230
<RECEIVABLES>                                4,367,700
<ASSETS-OTHER>                                 164,924
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             233,357,854
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                    1,475,777
<TOTAL-LIABILITIES>                          1,475,777
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   224,626,550
<SHARES-COMMON-STOCK>                          303,171
<SHARES-COMMON-PRIOR>                           10,909
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                    (3,304,231)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                    10,559,758
<NET-ASSETS>                               231,882,077
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                           13,651,703
<OTHER-INCOME>                                       0
<EXPENSES-NET>                             (2,185,139)
<NET-INVESTMENT-INCOME>                     11,466,564
<REALIZED-GAINS-CURRENT>                   (2,097,030)
<APPREC-INCREASE-CURRENT>                    9,826,700
<NET-CHANGE-FROM-OPS>                       19,196,234
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                     (91,445)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        309,465
<NUMBER-OF-SHARES-REDEEMED>                   (22,700)
<SHARES-REINVESTED>                              5,497
<NET-CHANGE-IN-ASSETS>                      23,682,482
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                  (1,207,201)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        1,353,189
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              2,376,918
<AVERAGE-NET-ASSETS>                       216,750,807
<PER-SHARE-NAV-BEGIN>                            12.73
<PER-SHARE-NII>                                    .60
<PER-SHARE-GAIN-APPREC>                            .47
<PER-SHARE-DIVIDEND>                             (.60)
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              13.20
<EXPENSE-RATIO>                                   1.66
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000816153
<NAME> THORNBURG INVESTMENT TRUST
<SERIES>
   <NUMBER> 4
   <NAME> THORNBURG LIMITED TERM INCOME FUND (A)
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          SEP-30-1995
<PERIOD-END>                               SEP-30-1995
<INVESTMENTS-AT-COST>                       22,776,986
<INVESTMENTS-AT-VALUE>                      23,343,368
<RECEIVABLES>                                  531,053
<ASSETS-OTHER>                                 484,747
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                              24,359,168
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      104,207
<TOTAL-LIABILITIES>                            104,207
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    24,653,077
<SHARES-COMMON-STOCK>                        1,917,639
<SHARES-COMMON-PRIOR>                        1,833,507
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      (964,990)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       566,382
<NET-ASSETS>                                24,254,961
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                            1,578,325
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               (182,072)
<NET-INVESTMENT-INCOME>                      1,396,253
<REALIZED-GAINS-CURRENT>                     (374,893)
<APPREC-INCREASE-CURRENT>                      876,248
<NET-CHANGE-FROM-OPS>                        1,897,608
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                  (1,365,616)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        440,567
<NUMBER-OF-SHARES-REDEEMED>                  (426,704)
<SHARES-REINVESTED>                             70,269
<NET-CHANGE-IN-ASSETS>                     (2,508,107)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                    (590,097)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          134,611
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                345,813
<AVERAGE-NET-ASSETS>                        21,548,384
<PER-SHARE-NAV-BEGIN>                            11.83
<PER-SHARE-NII>                                    .76
<PER-SHARE-GAIN-APPREC>                            .28
<PER-SHARE-DIVIDEND>                             (.76)
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              12.11
<EXPENSE-RATIO>                                    .83
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000816153
<NAME> THORNBURG INVESTMENT TRUST
<SERIES>
   <NUMBER> 4
   <NAME> THORNBURG LIMITED TERM INCOME FUND (B)
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          SEP-30-1995
<PERIOD-END>                               SEP-30-1995
<INVESTMENTS-AT-COST>                       22,776,986
<INVESTMENTS-AT-VALUE>                      23,343,368
<RECEIVABLES>                                  531,053
<ASSETS-OTHER>                                 484,747
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                              24,359,168
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      104,207
<TOTAL-LIABILITIES>                            104,207
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    24,653,077
<SHARES-COMMON-STOCK>                                0
<SHARES-COMMON-PRIOR>                              855
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      (964,990)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       566,382
<NET-ASSETS>                                24,254,961
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                            1,578,325
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               (182,072)
<NET-INVESTMENT-INCOME>                      1,396,253
<REALIZED-GAINS-CURRENT>                     (374,893)
<APPREC-INCREASE-CURRENT>                      876,248
<NET-CHANGE-FROM-OPS>                        1,897,608
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                      (4,308)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         17,217
<NUMBER-OF-SHARES-REDEEMED>                   (18,161)
<SHARES-REINVESTED>                                 89
<NET-CHANGE-IN-ASSETS>                     (2,508,107)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                    (590,097)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          134,611
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                345,813
<AVERAGE-NET-ASSETS>                        21,548,384
<PER-SHARE-NAV-BEGIN>                            11.82
<PER-SHARE-NII>                                    .72
<PER-SHARE-GAIN-APPREC>                            .28
<PER-SHARE-DIVIDEND>                             (.72)
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              12.10
<EXPENSE-RATIO>                                   1.40
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000816153
<NAME> THORNBURG INVESTMENT TRUST
<SERIES>
   <NUMBER> 4
   <NAME> THORNBURG LIMITED TERM INCOME FUND (C)
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          SEP-30-1995
<PERIOD-END>                               SEP-30-1995
<INVESTMENTS-AT-COST>                       22,776,986
<INVESTMENTS-AT-VALUE>                      23,343,368
<RECEIVABLES>                                  531,053
<ASSETS-OTHER>                                 484,747
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                              24,359,168
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      104,207
<TOTAL-LIABILITIES>                            104,207
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    24,653,077
<SHARES-COMMON-STOCK>                           85,477
<SHARES-COMMON-PRIOR>                            4,527
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      (964,990)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       566,382
<NET-ASSETS>                                24,254,961
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                            1,578,325
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               (182,072)
<NET-INVESTMENT-INCOME>                      1,396,253
<REALIZED-GAINS-CURRENT>                     (374,893)
<APPREC-INCREASE-CURRENT>                      876,248
<NET-CHANGE-FROM-OPS>                        1,897,608
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                     (26,329)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         92,716
<NUMBER-OF-SHARES-REDEEMED>                   (13,936)
<SHARES-REINVESTED>                              2,170
<NET-CHANGE-IN-ASSETS>                     (2,508,107)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                    (590,097)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          134,611
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                345,813
<AVERAGE-NET-ASSETS>                        21,548,384
<PER-SHARE-NAV-BEGIN>                            11.78
<PER-SHARE-NII>                                    .70
<PER-SHARE-GAIN-APPREC>                            .30
<PER-SHARE-DIVIDEND>                             (.70)
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              12.08
<EXPENSE-RATIO>                                   1.36
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000816153
<NAME> THORNBURG INVESTMENT TRUST
<SERIES>
   <NUMBER> 5
   <NAME> THORNBURG FLORIDA INTERMEDIATE MUNICIPAL FUND (A)
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          SEP-30-1995
<PERIOD-END>                               SEP-30-1995
<INVESTMENTS-AT-COST>                       14,515,387
<INVESTMENTS-AT-VALUE>                      14,820,460
<RECEIVABLES>                                  293,981
<ASSETS-OTHER>                                  41,224
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                              15,155,665
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       74,046
<TOTAL-LIABILITIES>                             74,046
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    14,884,531
<SHARES-COMMON-STOCK>                        1,252,774
<SHARES-COMMON-PRIOR>                          699,738
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      (107,985)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       305,073
<NET-ASSETS>                                15,081,619
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                              679,541
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                (48,128)
<NET-INVESTMENT-INCOME>                        631,413
<REALIZED-GAINS-CURRENT>                      (77,300)
<APPREC-INCREASE-CURRENT>                      434,101
<NET-CHANGE-FROM-OPS>                          988,214
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                    (609,538)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                      2,280,027
<NUMBER-OF-SHARES-REDEEMED>                (1,748,521)
<SHARES-REINVESTED>                             21,530
<NET-CHANGE-IN-ASSETS>                       6,876,500
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                     (30,685)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                           73,419
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                197,152
<AVERAGE-NET-ASSETS>                        11,818,372
<PER-SHARE-NAV-BEGIN>                            11.54
<PER-SHARE-NII>                                    .63
<PER-SHARE-GAIN-APPREC>                            .29
<PER-SHARE-DIVIDEND>                             (.63)
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              11.83
<EXPENSE-RATIO>                                    .38
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000816153
<NAME> THORNBURG INVESTMENT TRUST
<SERIES>
   <NUMBER> 5
   <NAME> THORNBURG FLORIDA INTERMEDIATE MUNICIPAL FUND (B)
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          SEP-30-1995
<PERIOD-END>                               SEP-30-1995
<INVESTMENTS-AT-COST>                       14,515,387
<INVESTMENTS-AT-VALUE>                      14,820,460
<RECEIVABLES>                                  293,981
<ASSETS-OTHER>                                  41,224
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                              15,155,665
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       74,046
<TOTAL-LIABILITIES>                             74,046
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    14,884,531
<SHARES-COMMON-STOCK>                                0
<SHARES-COMMON-PRIOR>                            1,731
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      (107,985)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       305,073
<NET-ASSETS>                                15,081,619
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                              679,541
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                (48,128)
<NET-INVESTMENT-INCOME>                        631,413
<REALIZED-GAINS-CURRENT>                      (77,300)
<APPREC-INCREASE-CURRENT>                      434,101
<NET-CHANGE-FROM-OPS>                          988,214
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                     (18,433)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         53,482
<NUMBER-OF-SHARES-REDEEMED>                   (55,915)
<SHARES-REINVESTED>                                702
<NET-CHANGE-IN-ASSETS>                       6,876,500
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                     (30,685)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                           73,419
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                197,152
<AVERAGE-NET-ASSETS>                        11,818,372
<PER-SHARE-NAV-BEGIN>                            11.55
<PER-SHARE-NII>                                    .55
<PER-SHARE-GAIN-APPREC>                            .28
<PER-SHARE-DIVIDEND>                             (.55)
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              11.83
<EXPENSE-RATIO>                                   1.08
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000816153
<NAME> THORNBURG INVESTMENT TRUST
<SERIES>
   <NUMBER> 5
   <NAME> THORNBURG FLORIDA INTERMEDIATE MUNICIPAL FUND (C)
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          SEP-30-1995
<PERIOD-END>                               SEP-30-1995
<INVESTMENTS-AT-COST>                       14,515,387
<INVESTMENTS-AT-VALUE>                      14,820,460
<RECEIVABLES>                                  293,981
<ASSETS-OTHER>                                  41,224
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                              15,155,665
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       74,046
<TOTAL-LIABILITIES>                             74,046
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                    14,884,531
<SHARES-COMMON-STOCK>                           21,869
<SHARES-COMMON-PRIOR>                            9,422
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                      (107,985)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       305,073
<NET-ASSETS>                                15,081,619
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                              679,541
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                (48,128)
<NET-INVESTMENT-INCOME>                        631,413
<REALIZED-GAINS-CURRENT>                      (77,300)
<APPREC-INCREASE-CURRENT>                      434,101
<NET-CHANGE-FROM-OPS>                          988,214
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                      (3,442)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         23,893
<NUMBER-OF-SHARES-REDEEMED>                   (11,696)
<SHARES-REINVESTED>                                250
<NET-CHANGE-IN-ASSETS>                       6,876,500
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                     (30,685)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                           73,419
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                197,152
<AVERAGE-NET-ASSETS>                        11,818,372
<PER-SHARE-NAV-BEGIN>                            11.54
<PER-SHARE-NII>                                    .55
<PER-SHARE-GAIN-APPREC>                            .32
<PER-SHARE-DIVIDEND>                             (.55)
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              11.86
<EXPENSE-RATIO>                                   1.08
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>


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