VANGUARD MUNICIPAL BOND FUND INC
NSAR-BT, 1997-12-23
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<PAGE>      PAGE  1
000 B000000 10/31/97
000 C000000 0000225997
000 D000000 Y
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0.a
000 J000000 U
001 A000000 VANGUARD MUNICIPAL BOND FUND, INC.
001 B000000 811-2687
001 C000000 6106691000
002 A000000 100 VANGUARD BOULEVARD
002 B000000 MALVERN
002 C000000 PA
002 D010000 19355
003  000000 N
004  000000 N
005  000000 N
006  000000 N
007 A000000 Y
007 B000000  7
007 C010100  1
007 C020100 SHORT-TERM PORTFOLIO
007 C030100 N
007 C010200  2
007 C020200 INTERMEDIATE-TERM PORTFOLIO
007 C030200 N
007 C010300  3
007 C020300 LONG-TERM PORTFOLIO
007 C030300 N
007 C010400  4
007 C020400 HIGH YIELD PORTFOLIO
007 C030400 N
007 C010500  5
007 C020500 MONEY MARKET PORTFOLIO
007 C030500 N
007 C010600  6
007 C020600 INSURED LONG-TERM PORTFOLIO
007 C030600 N
007 C010700  7
007 C020700 LIMITED-TERM PORTFOLIO
007 C030700 N
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019 C00AA00 VANGUARDGR
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<PAGE>      PAGE  2
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022 A000001 GOLDMAN SACHS & CO.
022 B000001 13-5108880
022 C000001    747683
022 D000001    167360
022 A000002 J.P. MORGAN SECURITIES INC.
022 B000002 13-3224016
022 C000002    357899
022 D000002    267200
022 A000003 SMITH BARNEY INC.
022 B000003 13-1912900
022 C000003    255596
022 D000003    157406
022 A000004 BEAR, STEARNS & CO.
022 B000004 13-3299429
022 C000004    196856
022 D000004    154536
022 A000005 CALIFORNIA MONEY MARKET PORTFOLIO
022 B000005 23-2449298
022 C000005     78500
022 D000005    238684
022 A000006 MERRILL LYNCH PIERCE FENNER & SMITH
022 B000006 13-5674085
022 C000006    258298
022 D000006     54871
022 A000007 MONEY MARKET PORTFOLIO/VANGUARD MUNICIPAL BD
022 B000007 23-2471394
022 C000007    130600
022 D000007    182417
022 A000008 LEHMAN BROTHERS INC.
022 B000008 13-2518466
022 C000008    274353
022 D000008     30568
022 A000009 BT SECURITIES CORPORATION
022 B000009 13-3311934
022 C000009    148023
022 D000009     49135
022 A000010 MORGAN STANLEY & CO., INC.
022 B000010 13-2655998
022 C000010    117744
022 D000010     78702
023 C000000    4119092
<PAGE>      PAGE  3
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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  16
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<PAGE>      PAGE  17
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SIGNATURE   GARY P. SOURA                                
TITLE       MANAGER             
 


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</TABLE>

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</TABLE>

<TABLE> <S> <C>

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</TABLE>

<TABLE> <S> <C>

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</TABLE>

<TABLE> <S> <C>

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