<PAGE> PAGE 1
000 A000000 04/30/99
000 C000000 0000225997
000 D000000 N
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 FUNDS
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 VANGUARD SHORT-TERM TAX-EXEMPT FUND
007 C030100 N
007 C010200 2
007 C020200 VANGUARD INTERMEDIATE-TERM TAX-EXEMPT FUND
007 C030200 N
007 C010300 3
007 C020300 VANGUARD LONG-TERM TAX-EXEMPT FUND
007 C030300 N
007 C010400 4
007 C020400 VANGUARD HIGH-YIELD TAX-EXEMPT FUND
007 C030400 N
007 C010500 5
007 C020500 VANGUARD TAX-EXEMPT MONEY MARKET FUND
007 C030500 N
007 C010600 6
007 C020600 VANGUARD INSURED LONG-TERM TAX-EXEMPT FUND
007 C030600 N
007 C010700 7
007 C020700 VANGUARD LIMITED-TERM TAX-EXEMPT FUND
007 C030700 N
007 C010800 8
007 C010900 9
007 C011000 10
010 A00AA01 THE VANGUARD GROUP, INC.
010 B00AA01 801-11953
010 C01AA01 MALVERN
010 C02AA01 PA
010 C03AA01 19355
<PAGE> PAGE 2
012 A00AA01 THE VANGUARD GROUP, INC.
012 B00AA01 84-772
012 C01AA01 MALVERN
012 C02AA01 PA
012 C03AA01 19355
013 A00AA01 PRICEWATERHOUSE COOPERS LLP
013 B01AA01 PHILADELPHIA
013 B02AA01 PA
013 B03AA01 19103
014 A00AA01 VANGUARD MARKETING CORPORATION
014 B00AA01 8-21570
015 A00AA01 FIRST UNION NATIONAL BANK
015 B00AA01 C
015 C01AA01 PHILADELPHIA
015 C02AA01 PA
015 C03AA01 19101
015 E01AA01 X
018 00AA00 Y
019 A00AA00 Y
019 B00AA00 102
019 C00AA00 VANGUARDGR
020 C000001 0
020 C000002 0
020 C000003 0
020 C000004 0
020 C000005 0
020 C000006 0
020 C000007 0
020 C000008 0
020 C000009 0
020 C000010 0
021 000000 0
022 A000001 GOLDMAN SACHS & CO.
022 B000001 13-5108880
022 C000001 1898579
022 D000001 571538
022 A000002 SMITH BARNEY INC.
022 B000002 13-1912900
022 C000002 1098793
022 D000002 799885
022 A000003 LEHMAN BROTHERS INC.
022 B000003 13-2518466
022 C000003 1326660
022 D000003 276069
022 A000004 MERRILL LYNCH, PIERCE, FENNER & SMITH INC.
022 B000004 13-5674085
022 C000004 957963
022 D000004 554326
022 A000005 VANGUARD TAX-EXEMPT MONEY MARKET FUND
022 B000005 23-2471394
022 C000005 714877
<PAGE> PAGE 3
022 D000005 769982
022 A000006 J.P. MORGAN SECURITIES
022 B000006 13-3224016
022 C000006 1040751
022 D000006 427380
022 A000007 MORGAN STANLEY & CO.,INC.
022 B000007 13-2655998
022 C000007 729154
022 D000007 323356
022 A000008 BEAR STEARNS SECURITIES CORP.
022 B000008 13-3299429
022 C000008 684560
022 D000008 332654
022 A000009 PAINEWEBBER INC.
022 B000009 13-2638166
022 C000009 686652
022 D000009 285760
022 A000010 VANGUARD INTERMEDIATE-TERM TAX-EXEMPT FUND
022 B000010 23-2471389
022 C000010 355216
022 D000010 337065
023 C000000 12889081
023 D000000 7428064
024 00AA00 N
026 A000000 N
026 B000000 N
026 C000000 N
026 D000000 Y
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 Y
026 H000000 N
027 000000 Y
029 00AA00 N
030 A00AA00 0
030 B00AA00 0.00
030 C00AA00 0.00
031 A00AA00 0
031 B00AA00 0
032 00AA00 0
033 00AA00 0
034 00AA00 N
035 00AA00 0
036 B00AA00 0
037 00AA00 N
038 00AA00 0
039 00AA00 N
040 00AA00 N
042 A00AA00 0
042 B00AA00 0
<PAGE> PAGE 4
042 C00AA00 0
042 D00AA00 0
042 E00AA00 0
042 F00AA00 0
042 G00AA00 0
042 H00AA00 0
043 00AA00 0
044 00AA00 0
045 00AA00 N
048 00AA00 0.000
048 A01AA00 0
048 A02AA00 0.000
048 B01AA00 0
048 B02AA00 0.000
048 C01AA00 0
048 C02AA00 0.000
048 D01AA00 0
048 D02AA00 0.000
048 E01AA00 0
048 E02AA00 0.000
048 F01AA00 0
048 F02AA00 0.000
048 G01AA00 0
048 G02AA00 0.000
048 H01AA00 0
048 H02AA00 0.000
048 I01AA00 0
048 I02AA00 0.000
048 J01AA00 0
048 J02AA00 0.000
048 K01AA00 0
048 K02AA00 0.000
058 A00AA00 N
059 00AA00 Y
060 A00AA00 Y
060 B00AA00 Y
061 00AA00 3000
066 A00AA00 N
067 00AA00 N
068 A00AA00 N
068 B00AA00 N
069 00AA00 N
077 A000000 N
078 000000 N
080 A00AA00 ICI MUTUAL INSURANCE COMPANY
080 C00AA00 350000
081 A00AA00 Y
081 B00AA00 142
082 A00AA00 N
082 B00AA00 0
083 A00AA00 N
<PAGE> PAGE 5
083 B00AA00 0
084 A00AA00 N
084 B00AA00 0
085 A00AA00 Y
085 B00AA00 N
086 A010000 0
086 A020000 0
086 B010000 0
086 B020000 0
086 C010000 0
086 C020000 0
086 D010000 0
086 D020000 0
086 E010000 0
086 E020000 0
086 F010000 0
086 F020000 0
025 D000101 0
025 D000102 0
025 D000103 0
025 D000104 0
025 D000105 0
025 D000106 0
025 D000107 0
025 D000108 0
028 A010100 57444
028 A020100 4358
028 A030100 0
028 A040100 47518
028 B010100 73001
028 B020100 5111
028 B030100 0
028 B040100 87163
028 C010100 124191
028 C020100 4497
028 C030100 0
028 C040100 85080
028 D010100 98195
028 D020100 4078
028 D030100 0
028 D040100 50798
028 E010100 104172
028 E020100 4674
028 E030100 0
028 E040100 89700
028 F010100 182171
028 F020100 4626
028 F030100 0
028 F040100 134704
028 G010100 639174
028 G020100 27344
<PAGE> PAGE 6
028 G030100 0
028 G040100 494963
028 H000100 0
055 A000100 N
055 B000100 N
056 000100 N
057 000100 N
062 A000100 Y
062 B000100 0.0
062 C000100 0.0
062 D000100 0.0
062 E000100 49.2
062 F000100 0.0
062 G000100 0.0
062 H000100 0.0
062 I000100 0.0
062 J000100 0.0
062 K000100 0.0
062 L000100 0.0
062 M000100 0.0
062 N000100 0.0
062 O000100 50.6
062 P000100 0.0
062 Q000100 0.0
062 R000100 0.2
063 A000100 0
063 B000100 1.2
064 A000100 Y
064 B000100 N
070 A010100 Y
070 A020100 N
070 B010100 N
070 B020100 N
070 C010100 Y
070 C020100 N
070 D010100 N
070 D020100 N
070 E010100 Y
070 E020100 N
070 F010100 N
070 F020100 N
070 G010100 Y
070 G020100 N
070 H010100 N
070 H020100 N
070 I010100 N
070 I020100 N
070 J010100 Y
070 J020100 N
070 K010100 Y
070 K020100 N
<PAGE> PAGE 7
070 L010100 N
070 L020100 N
070 M010100 N
070 M020100 N
070 N010100 Y
070 N020100 N
070 O010100 Y
070 O020100 N
070 P010100 Y
070 P020100 Y
070 Q010100 N
070 Q020100 N
070 R010100 N
070 R020100 N
071 A000100 482572
071 B000100 323313
071 C000100 1439417
071 D000100 22
072 A000100 6
072 B000100 33067
072 C000100 0
072 D000100 0
072 E000100 0
072 F000100 101
072 G000100 866
072 H000100 0
072 I000100 432
072 J000100 10
072 K000100 0
072 L000100 3
072 M000100 1
072 N000100 0
072 O000100 0
072 P000100 0
072 Q000100 0
072 R000100 2
072 S000100 0
072 T000100 230
072 U000100 0
072 V000100 0
072 W000100 0
072 X000100 1645
072 Y000100 50
072 Z000100 31472
072AA000100 517
072BB000100 18
072CC010100 0
072CC020100 6633
072DD010100 31472
072DD020100 0
072EE000100 625
<PAGE> PAGE 8
073 A010100 0.2880
073 A020100 0.0000
073 B000100 0.0060
073 C000100 0.0000
074 A000100 261
074 B000100 0
074 C000100 894981
074 D000100 920348
074 E000100 0
074 F000100 0
074 G000100 0
074 H000100 0
074 I000100 287
074 J000100 0
074 K000100 0
074 L000100 37115
074 M000100 0
074 N000100 1852992
074 O000100 26438
074 P000100 758
074 Q000100 0
074 R010100 0
074 R020100 0
074 R030100 0
074 R040100 7337
074 S000100 0
074 T000100 1818459
074 U010100 116641
074 U020100 0
074 V010100 15.59
074 V020100 0.00
074 W000100 0.0000
074 X000100 19477
074 Y000100 0
075 A000100 0
075 B000100 1716766
076 000100 0.00
028 A010200 127554
028 A020200 23302
028 A030200 0
028 A040200 83564
028 B010200 160067
028 B020200 41480
028 B030200 0
028 B040200 120198
028 C010200 287029
028 C020200 24584
028 C030200 0
028 C040200 132634
028 D010200 264823
028 D020200 22656
<PAGE> PAGE 9
028 D030200 0
028 D040200 107410
028 E010200 232421
028 E020200 25541
028 E030200 0
028 E040200 139613
028 F010200 276417
028 F020200 24929
028 F030200 0
028 F040200 243966
028 G010200 1348311
028 G020200 162492
028 G030200 0
028 G040200 827385
028 H000200 0
062 A000200 Y
062 B000200 0.0
062 C000200 0.0
062 D000200 0.0
062 E000200 3.6
062 F000200 0.0
062 G000200 0.0
062 H000200 0.0
062 I000200 0.0
062 J000200 0.0
062 K000200 0.0
062 L000200 0.0
062 M000200 0.0
062 N000200 0.0
062 O000200 95.3
062 P000200 0.0
062 Q000200 0.0
062 R000200 1.1
063 A000200 0
063 B000200 6.9
064 A000200 Y
064 B000200 N
070 A010200 Y
070 A020200 N
070 B010200 N
070 B020200 N
070 C010200 Y
070 C020200 N
070 D010200 N
070 D020200 N
070 E010200 Y
070 E020200 Y
070 F010200 N
070 F020200 N
070 G010200 Y
070 G020200 N
<PAGE> PAGE 10
070 H010200 N
070 H020200 N
070 I010200 N
070 I020200 N
070 J010200 Y
070 J020200 Y
070 K010200 Y
070 K020200 N
070 L010200 N
070 L020200 N
070 M010200 N
070 M020200 N
070 N010200 Y
070 N020200 N
070 O010200 Y
070 O020200 N
070 P010200 Y
070 P020200 Y
070 Q010200 N
070 Q020200 N
070 R010200 N
070 R020200 N
071 A000200 1016926
071 B000200 529380
071 C000200 7874339
071 D000200 7
072 A000200 6
072 B000200 200743
072 C000200 0
072 D000200 0
072 E000200 0
072 F000200 478
072 G000200 4101
072 H000200 0
072 I000200 2316
072 J000200 37
072 K000200 0
072 L000200 20
072 M000200 6
072 N000200 0
072 O000200 0
072 P000200 0
072 Q000200 0
072 R000200 8
072 S000200 0
072 T000200 797
072 U000200 0
072 V000200 0
072 W000200 0
072 X000200 7763
072 Y000200 227
<PAGE> PAGE 11
072 Z000200 193207
072AA000200 37086
072BB000200 20774
072CC010200 0
072CC020200 71579
072DD010200 193207
072DD020200 0
072EE000200 20558
073 A010200 0.3230
073 A020200 0.0000
073 B000200 0.0350
073 C000200 0.0000
074 A000200 317
074 B000200 0
074 C000200 298834
074 D000200 7986734
074 E000200 0
074 F000200 0
074 G000200 0
074 H000200 0
074 I000200 1337
074 J000200 0
074 K000200 0
074 L000200 144431
074 M000200 0
074 N000200 8431653
074 O000200 28171
074 P000200 3304
074 Q000200 0
074 R010200 0
074 R020200 0
074 R030200 0
074 R040200 19508
074 S000200 0
074 T000200 8380670
074 U010200 625608
074 U020200 0
074 V010200 13.40
074 V020200 0.00
074 W000200 0.0000
074 X000200 110242
074 Y000200 10817
075 A000200 0
075 B000200 8087838
076 000200 0.00
028 A010300 43139
028 A020300 4244
028 A030300 0
028 A040300 12500
028 B010300 24856
028 B020300 16766
<PAGE> PAGE 12
028 B030300 0
028 B040300 30572
028 C010300 58542
028 C020300 4501
028 C030300 0
028 C040300 27665
028 D010300 36744
028 D020300 4091
028 D030300 0
028 D040300 27447
028 E010300 39876
028 E020300 4589
028 E030300 0
028 E040300 22435
028 F010300 34883
028 F020300 4441
028 F030300 0
028 F040300 32383
028 G010300 238040
028 G020300 38632
028 G030300 0
028 G040300 153002
028 H000300 0
055 A000300 N
055 B000300 N
056 000300 N
057 000300 N
062 A000300 Y
062 B000300 0.0
062 C000300 0.0
062 D000300 0.0
062 E000300 7.5
062 F000300 0.0
062 G000300 0.0
062 H000300 0.0
062 I000300 0.0
062 J000300 0.0
062 K000300 0.0
062 L000300 0.0
062 M000300 0.0
062 N000300 0.0
062 O000300 92.2
062 P000300 0.0
062 Q000300 0.0
062 R000300 0.3
063 A000300 0
063 B000300 12.1
064 A000300 Y
064 B000300 N
070 A010300 Y
070 A020300 N
<PAGE> PAGE 13
070 B010300 N
070 B020300 N
070 C010300 Y
070 C020300 N
070 D010300 N
070 D020300 N
070 E010300 Y
070 E020300 Y
070 F010300 N
070 F020300 N
070 G010300 Y
070 G020300 N
070 H010300 N
070 H020300 N
070 I010300 N
070 I020300 N
070 J010300 Y
070 J020300 N
070 K010300 Y
070 K020300 N
070 L010300 N
070 L020300 N
070 M010300 N
070 M020300 N
070 N010300 Y
070 N020300 N
070 O010300 Y
070 O020300 N
070 P010300 Y
070 P020300 Y
070 Q010300 N
070 Q020300 N
070 R010300 N
070 R020300 N
071 A000300 199817
071 B000300 105403
071 C000300 1480348
071 D000300 7
072 A000300 6
072 B000300 40389
072 C000300 0
072 D000300 0
072 E000300 0
072 F000300 93
072 G000300 759
072 H000300 0
072 I000300 464
072 J000300 8
072 K000300 0
072 L000300 5
072 M000300 1
<PAGE> PAGE 14
072 N000300 0
072 O000300 0
072 P000300 0
072 Q000300 0
072 R000300 2
072 S000300 0
072 T000300 142
072 U000300 0
072 V000300 0
072 W000300 0
072 X000300 1474
072 Y000300 12
072 Z000300 38927
072AA000300 8414
072BB000300 3377
072CC010300 0
072CC020300 17695
072DD010300 38927
072DD020300 0
072EE000300 15575
073 A010300 0.2810
073 A020300 0.0000
073 B000300 0.1150
073 C000300 0.0000
074 A000300 207
074 B000300 0
074 C000300 119764
074 D000300 1479170
074 E000300 0
074 F000300 0
074 G000300 0
074 H000300 0
074 I000300 259
074 J000300 0
074 K000300 0
074 L000300 26287
074 M000300 0
074 N000300 1625687
074 O000300 18027
074 P000300 658
074 Q000300 0
074 R010300 0
074 R020300 0
074 R030300 0
074 R040300 2790
074 S000300 0
074 T000300 1604212
074 U010300 143383
074 U020300 0
074 V010300 11.19
074 V020300 0.00
<PAGE> PAGE 15
074 W000300 0.0000
074 X000300 22339
074 Y000300 2589
075 A000300 0
075 B000300 1565551
076 000300 0.00
028 A010400 62288
028 A020400 7966
028 A030400 0
028 A040400 31538
028 B010400 67171
028 B020400 22309
028 B030400 0
028 B040400 43536
028 C010400 160014
028 C020400 8613
028 C030400 0
028 C040400 46594
028 D010400 92398
028 D020400 8023
028 D030400 0
028 D040400 32176
028 E010400 123246
028 E020400 9096
028 E030400 0
028 E040400 42355
028 F010400 115465
028 F020400 8974
028 F030400 0
028 F040400 71799
028 G010400 620582
028 G020400 64981
028 G030400 0
028 G040400 267998
028 H000400 0
055 A000400 N
055 B000400 N
056 000400 N
057 000400 N
062 A000400 Y
062 B000400 0.0
062 C000400 0.0
062 D000400 0.0
062 E000400 1.9
062 F000400 0.0
062 G000400 0.0
062 H000400 0.0
062 I000400 0.0
062 J000400 0.0
062 K000400 0.0
062 L000400 0.0
<PAGE> PAGE 16
062 M000400 0.0
062 N000400 0.0
062 O000400 97.3
062 P000400 0.0
062 Q000400 0.0
062 R000400 0.8
063 A000400 0
063 B000400 12.5
064 A000400 Y
064 B000400 Y
065 000400 N
070 A010400 Y
070 A020400 N
070 B010400 N
070 B020400 N
070 C010400 Y
070 C020400 N
070 D010400 N
070 D020400 N
070 E010400 Y
070 E020400 Y
070 F010400 N
070 F020400 N
070 G010400 Y
070 G020400 N
070 H010400 N
070 H020400 N
070 I010400 N
070 I020400 N
070 J010400 Y
070 J020400 Y
070 K010400 Y
070 K020400 N
070 L010400 N
070 L020400 N
070 M010400 N
070 M020400 N
070 N010400 Y
070 N020400 N
070 O010400 Y
070 O020400 N
070 P010400 Y
070 P020400 Y
070 Q010400 N
070 Q020400 N
070 R010400 N
070 R020400 N
071 A000400 572892
071 B000400 174211
071 C000400 2781130
071 D000400 6
<PAGE> PAGE 17
072 A000400 6
072 B000400 76912
072 C000400 0
072 D000400 0
072 E000400 0
072 F000400 169
072 G000400 1407
072 H000400 0
072 I000400 916
072 J000400 14
072 K000400 0
072 L000400 9
072 M000400 2
072 N000400 0
072 O000400 0
072 P000400 0
072 Q000400 0
072 R000400 3
072 S000400 0
072 T000400 268
072 U000400 0
072 V000400 0
072 W000400 0
072 X000400 2788
072 Y000400 101
072 Z000400 74225
072AA000400 26579
072BB000400 17818
072CC010400 0
072CC020400 28506
072DD010400 74225
072DD020400 0
072EE000400 18021
073 A010400 0.2820
073 A020400 0.0000
073 B000400 0.0720
073 C000400 0.0000
074 A000400 0
074 B000400 0
074 C000400 59648
074 D000400 2999397
074 E000400 0
074 F000400 0
074 G000400 0
074 H000400 0
074 I000400 490
074 J000400 225
074 K000400 0
074 L000400 52818
074 M000400 0
074 N000400 3112578
<PAGE> PAGE 18
074 O000400 18001
074 P000400 1154
074 Q000400 0
074 R010400 0
074 R020400 0
074 R030400 0
074 R040400 9275
074 S000400 0
074 T000400 3084148
074 U010400 282508
074 U020400 0
074 V010400 10.92
074 V020400 0.00
074 W000400 0.0000
074 X000400 44698
074 Y000400 6188
075 A000400 0
075 B000400 2884506
076 000400 0.00
025 D000501 0
025 D000502 0
025 D000503 0
025 D000504 0
025 D000505 0
025 D000506 0
025 D000507 0
025 D000508 0
028 A010500 508490
028 A020500 14847
028 A030500 0
028 A040500 407019
028 B010500 627908
028 B020500 15159
028 B030500 0
028 B040500 936127
028 C010500 1402082
028 C020500 15080
028 C030500 0
028 C040500 716063
028 D010500 562183
028 D020500 12555
028 D030500 0
028 D040500 633642
028 E010500 635326
028 E020500 15364
028 E030500 0
028 E040500 539763
028 F010500 717352
028 F020500 15477
028 F030500 0
028 F040500 1035679
<PAGE> PAGE 19
028 G010500 4453341
028 G020500 88482
028 G030500 0
028 G040500 4268293
028 H000500 0
055 A000500 N
055 B000500 N
056 000500 N
057 000500 N
062 A000500 Y
062 B000500 0.0
062 C000500 0.0
062 D000500 0.0
062 E000500 98.4
062 F000500 0.0
062 G000500 0.0
062 H000500 0.0
062 I000500 0.0
062 J000500 0.0
062 K000500 0.0
062 L000500 0.0
062 M000500 0.0
062 N000500 0.0
062 O000500 0.0
062 P000500 0.0
062 Q000500 0.0
062 R000500 1.6
063 A000500 40
063 B000500 0.0
064 A000500 Y
064 B000500 N
070 A010500 Y
070 A020500 N
070 B010500 N
070 B020500 N
070 C010500 N
070 C020500 N
070 D010500 N
070 D020500 N
070 E010500 N
070 E020500 N
070 F010500 N
070 F020500 N
070 G010500 N
070 G020500 N
070 H010500 N
070 H020500 N
070 I010500 N
070 I020500 N
070 J010500 Y
070 J020500 Y
<PAGE> PAGE 20
070 K010500 Y
070 K020500 N
070 L010500 N
070 L020500 N
070 M010500 N
070 M020500 N
070 N010500 Y
070 N020500 N
070 O010500 Y
070 O020500 N
070 P010500 Y
070 P020500 Y
070 Q010500 N
070 Q020500 N
070 R010500 N
070 R020500 N
071 A000500 0
071 B000500 0
071 C000500 0
071 D000500 0
072 A000500 6
072 B000500 101298
072 C000500 0
072 D000500 0
072 E000500 0
072 F000500 385
072 G000500 3075
072 H000500 0
072 I000500 1933
072 J000500 37
072 K000500 0
072 L000500 12
072 M000500 4
072 N000500 0
072 O000500 0
072 P000500 0
072 Q000500 0
072 R000500 6
072 S000500 0
072 T000500 867
072 U000500 0
072 V000500 0
072 W000500 0
072 X000500 6319
072 Y000500 37
072 Z000500 95016
072AA000500 0
072BB000500 34
072CC010500 0
072CC020500 0
072DD010500 95016
<PAGE> PAGE 21
072DD020500 0
072EE000500 0
073 A010500 0.0150
073 A020500 0.0000
073 B000500 0.0000
073 C000500 0.0000
074 A000500 299
074 B000500 0
074 C000500 6414079
074 D000500 0
074 E000500 0
074 F000500 0
074 G000500 0
074 H000500 0
074 I000500 1099
074 J000500 10770
074 K000500 0
074 L000500 129447
074 M000500 0
074 N000500 6555694
074 O000500 0
074 P000500 2624
074 Q000500 0
074 R010500 0
074 R020500 0
074 R030500 0
074 R040500 33813
074 S000500 0
074 T000500 6519257
074 U010500 6519884
074 U020500 0
074 V010500 1.00
074 V020500 0.00
074 W000500 0.9998
074 X000500 61827
074 Y000500 0
075 A000500 6499935
075 B000500 0
076 000500 0.00
028 A010600 28856
028 A020600 5873
028 A030600 0
028 A040600 14542
028 B010600 39590
028 B020600 15608
028 B030600 0
028 B040600 26982
028 C010600 53634
028 C020600 6255
028 C030600 0
028 C040600 30500
<PAGE> PAGE 22
028 D010600 37175
028 D020600 5688
028 D030600 0
028 D040600 25701
028 E010600 35492
028 E020600 6353
028 E030600 0
028 E040600 27215
028 F010600 38871
028 F020600 6222
028 F030600 0
028 F040600 35276
028 G010600 233618
028 G020600 45999
028 G030600 0
028 G040600 160216
028 H000600 0
062 A000600 Y
062 B000600 0.0
062 C000600 0.0
062 D000600 0.0
062 E000600 3.6
062 F000600 0.0
062 G000600 0.0
062 H000600 0.0
062 I000600 0.0
062 J000600 0.0
062 K000600 0.0
062 L000600 0.0
062 M000600 0.0
062 N000600 0.0
062 O000600 96.5
062 P000600 0.0
062 Q000600 0.0
062 R000600 -0.1
063 A000600 0
063 B000600 11.2
064 A000600 Y
064 B000600 N
070 A010600 Y
070 A020600 N
070 B010600 N
070 B020600 N
070 C010600 Y
070 C020600 N
070 D010600 N
070 D020600 N
070 E010600 Y
070 E020600 Y
070 F010600 N
070 F020600 N
<PAGE> PAGE 23
070 G010600 Y
070 G020600 N
070 H010600 N
070 H020600 N
070 I010600 N
070 I020600 N
070 J010600 Y
070 J020600 N
070 K010600 Y
070 K020600 N
070 L010600 N
070 L020600 N
070 M010600 N
070 M020600 N
070 N010600 Y
070 N020600 N
070 O010600 Y
070 O020600 N
070 P010600 Y
070 P020600 Y
070 Q010600 N
070 Q020600 N
070 R010600 N
070 R020600 N
071 A000600 251432
071 B000600 120215
071 C000600 2232789
071 D000600 5
072 A000600 6
072 B000600 60221
072 C000600 0
072 D000600 0
072 E000600 0
072 F000600 137
072 G000600 1159
072 H000600 0
072 I000600 709
072 J000600 12
072 K000600 0
072 L000600 6
072 M000600 2
072 N000600 0
072 O000600 0
072 P000600 0
072 Q000600 0
072 R000600 3
072 S000600 0
072 T000600 192
072 U000600 0
072 V000600 0
072 W000600 0
<PAGE> PAGE 24
072 X000600 2220
072 Y000600 82
072 Z000600 58083
072AA000600 19750
072BB000600 1971
072CC010600 0
072CC020600 31018
072DD010600 58083
072DD020600 0
072EE000600 12266
073 A010600 0.3210
073 A020600 0.0000
073 B000600 0.0690
073 C000600 0.0000
074 A000600 56
074 B000600 0
074 C000600 84526
074 D000600 2248301
074 E000600 0
074 F000600 0
074 G000600 0
074 H000600 0
074 I000600 371
074 J000600 0
074 K000600 0
074 L000600 40002
074 M000600 0
074 N000600 2373256
074 O000600 37379
074 P000600 1069
074 Q000600 0
074 R010600 0
074 R020600 0
074 R030600 0
074 R040600 5777
074 S000600 0
074 T000600 2329031
074 U010600 184937
074 U020600 0
074 V010600 12.59
074 V020600 0.00
074 W000600 0.0000
074 X000600 34477
074 Y000600 6991
075 A000600 0
075 B000600 2290896
076 000600 0.00
025 D000701 0
025 D000702 0
025 D000703 0
025 D000704 0
<PAGE> PAGE 25
025 D000705 0
025 D000706 0
025 D000707 0
025 D000708 0
028 A010700 65802
028 A020700 6472
028 A030700 0
028 A040700 35246
028 B010700 82702
028 B020700 6741
028 B030700 0
028 B040700 73963
028 C010700 126006
028 C020700 6825
028 C030700 0
028 C040700 81230
028 D010700 93959
028 D020700 6312
028 D030700 0
028 D040700 55949
028 E010700 107959
028 E020700 7074
028 E030700 0
028 E040700 61677
028 F010700 104076
028 F020700 6883
028 F030700 0
028 F040700 119156
028 G010700 580504
028 G020700 40307
028 G030700 0
028 G040700 427221
028 H000700 0
055 A000700 N
055 B000700 N
056 000700 N
057 000700 N
062 A000700 Y
062 B000700 0.0
062 C000700 0.0
062 D000700 0.0
062 E000700 7.5
062 F000700 0.0
062 G000700 0.0
062 H000700 0.0
062 I000700 0.0
062 J000700 0.0
062 K000700 0.0
062 L000700 0.0
062 M000700 0.0
062 N000700 0.0
<PAGE> PAGE 26
062 O000700 91.8
062 P000700 0.0
062 Q000700 0.0
062 R000700 0.7
063 A000700 0
063 B000700 3.4
064 A000700 Y
064 B000700 N
070 A010700 Y
070 A020700 N
070 B010700 N
070 B020700 N
070 C010700 Y
070 C020700 N
070 D010700 N
070 D020700 N
070 E010700 Y
070 E020700 Y
070 F010700 N
070 F020700 N
070 G010700 Y
070 G020700 N
070 H010700 N
070 H020700 N
070 I010700 N
070 I020700 N
070 J010700 Y
070 J020700 N
070 K010700 Y
070 K020700 N
070 L010700 N
070 L020700 N
070 M010700 N
070 M020700 N
070 N010700 Y
070 N020700 N
070 O010700 Y
070 O020700 N
070 P010700 Y
070 P020700 Y
070 Q010700 N
070 Q020700 N
070 R010700 N
070 R020700 N
071 A000700 312138
071 B000700 104383
071 C000700 2398516
071 D000700 4
072 A000700 6
072 B000700 53576
072 C000700 0
<PAGE> PAGE 27
072 D000700 0
072 E000700 0
072 F000700 144
072 G000700 1354
072 H000700 0
072 I000700 613
072 J000700 12
072 K000700 0
072 L000700 5
072 M000700 2
072 N000700 0
072 O000700 0
072 P000700 0
072 Q000700 0
072 R000700 3
072 S000700 0
072 T000700 281
072 U000700 0
072 V000700 0
072 W000700 0
072 X000700 2414
072 Y000700 133
072 Z000700 51295
072AA000700 3730
072BB000700 3285
072CC010700 0
072CC020700 7559
072DD010700 51295
072DD020700 0
072EE000700 0
073 A010700 0.2280
073 A020700 0.0000
073 B000700 0.0000
073 C000700 0.0000
074 A000700 415
074 B000700 0
074 C000700 189049
074 D000700 2320029
074 E000700 0
074 F000700 0
074 G000700 0
074 H000700 0
074 I000700 406
074 J000700 0
074 K000700 0
074 L000700 48240
074 M000700 0
074 N000700 2558139
074 O000700 19901
074 P000700 983
074 Q000700 0
<PAGE> PAGE 28
074 R010700 0
074 R020700 0
074 R030700 0
074 R040700 10599
074 S000700 0
074 T000700 2526656
074 U010700 233471
074 U020700 0
074 V010700 10.82
074 V020700 0.00
074 W000700 0.0000
074 X000700 28667
074 Y000700 0
075 A000700 0
075 B000700 2445165
076 000700 0.00
SIGNATURE GARY P. SOURA
TITLE MANAGER
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000225997
<NAME> VANGUARD MUNICIPAL BOND FUNDS
<SERIES>
<NUMBER> 01
<NAME> VANGUARD SHORT-TERM TAX-EXEMPT FUND
<MULTIPLIER> 1000
<CURRENCY> US
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> OCT-31-1999
<PERIOD-START> NOV-01-1998
<PERIOD-END> APR-30-1999
<EXCHANGE-RATE> 1
<INVESTMENTS-AT-COST> 1808293
<INVESTMENTS-AT-VALUE> 1815329
<RECEIVABLES> 37115
<ASSETS-OTHER> 548
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 1852992
<PAYABLE-FOR-SECURITIES> 26438
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 8095
<TOTAL-LIABILITIES> 34533
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 1810968
<SHARES-COMMON-STOCK> 116641
<SHARES-COMMON-PRIOR> 105661
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 455
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 7036
<NET-ASSETS> 1818459
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 33067
<OTHER-INCOME> 0
<EXPENSES-NET> 1595
<NET-INVESTMENT-INCOME> 31472
<REALIZED-GAINS-CURRENT> 499
<APPREC-INCREASE-CURRENT> (6633)
<NET-CHANGE-FROM-OPS> 25338
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 31472
<DISTRIBUTIONS-OF-GAINS> 625
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 40913
<NUMBER-OF-SHARES-REDEEMED> 31683
<SHARES-REINVESTED> 1750
<NET-CHANGE-IN-ASSETS> 164796
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 581
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 101
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1645
<AVERAGE-NET-ASSETS> 1716766
<PER-SHARE-NAV-BEGIN> 15.65
<PER-SHARE-NII> 0.288
<PER-SHARE-GAIN-APPREC> (0.054)
<PER-SHARE-DIVIDEND> 0.288
<PER-SHARE-DISTRIBUTIONS> 0.006
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 15.59
<EXPENSE-RATIO> 0.19
[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
<RESTATED>
<CIK> 0000225997
<NAME> VANGUARD MUNICIPAL BOND FUNDS
<SERIES>
<NUMBER> 02
<NAME> VANGUARD INTERMEDIATE-TERM TAX-EXEMPT FUND
<MULTIPLIER> 1,000
<CURRENCY> US
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> OCT-31-1999
<PERIOD-START> NOV-01-1998
<PERIOD-END> APR-30-1999
<EXCHANGE-RATE> 1
<INVESTMENTS-AT-COST> 7910195
<INVESTMENTS-AT-VALUE> 8285568
<RECEIVABLES> 144431
<ASSETS-OTHER> 1654
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 8431653
<PAYABLE-FOR-SECURITIES> 28171
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 22812
<TOTAL-LIABILITIES> 50983
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 8038288
<SHARES-COMMON-STOCK> 625608
<SHARES-COMMON-PRIOR> 574912
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 36610
<ACCUM-APPREC-OR-DEPREC> 378992
<NET-ASSETS> 8380670
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 200743
<OTHER-INCOME> 0
<EXPENSES-NET> 7536
<NET-INVESTMENT-INCOME> 193207
<REALIZED-GAINS-CURRENT> 16312
<APPREC-INCREASE-CURRENT> (71579)
<NET-CHANGE-FROM-OPS> 137940
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 193207
<DISTRIBUTIONS-OF-GAINS> 20558
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 100055
<NUMBER-OF-SHARES-REDEEMED> 61417
<SHARES-REINVESTED> 12058
<NET-CHANGE-IN-ASSETS> 607593
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 32364
<GROSS-ADVISORY-FEES> 478
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 7763
<AVERAGE-NET-ASSETS> 8087838
<PER-SHARE-NAV-BEGIN> 13.52
<PER-SHARE-NII> 0.323
<PER-SHARE-GAIN-APPREC> (0.085)
<PER-SHARE-DIVIDEND> 0.323
<PER-SHARE-DISTRIBUTIONS> 0.035
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 13.40
<EXPENSE-RATIO> 0.19
[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> 0000225997
<NAME> VANGUARD MUNICIPAL BOND FUNDS
<SERIES>
<NUMBER> 03
<NAME> VANGUARD LONG-TERM TAX-EXEMPT FUND
<MULTIPLIER> 1000
<CURRENCY> US
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> OCT-31-1999
<PERIOD-START> NOV-01-1998
<PERIOD-END> APR-30-1999
<EXCHANGE-RATE> 1
<INVESTMENTS-AT-COST> 1490664
<INVESTMENTS-AT-VALUE> 1598934
<RECEIVABLES> 26287
<ASSETS-OTHER> 466
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 1625687
<PAYABLE-FOR-SECURITIES> 18027
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 3448
<TOTAL-LIABILITIES> 21475
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 1507658
<SHARES-COMMON-STOCK> 143383
<SHARES-COMMON-PRIOR> 132415
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 12718
<ACCUM-APPREC-OR-DEPREC> 109272
<NET-ASSETS> 1604212
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 40389
<OTHER-INCOME> 0
<EXPENSES-NET> 1462
<NET-INVESTMENT-INCOME> 38927
<REALIZED-GAINS-CURRENT> 5037
<APPREC-INCREASE-CURRENT> (17695)
<NET-CHANGE-FROM-OPS> 26269
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 38927
<DISTRIBUTIONS-OF-GAINS> 15575
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 21101
<NUMBER-OF-SHARES-REDEEMED> 13562
<SHARES-REINVESTED> 3429
<NET-CHANGE-IN-ASSETS> 95437
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 2180
<GROSS-ADVISORY-FEES> 93
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1474
<AVERAGE-NET-ASSETS> 1565551
<PER-SHARE-NAV-BEGIN> 11.39
<PER-SHARE-NII> 0.281
<PER-SHARE-GAIN-APPREC> (0.085)
<PER-SHARE-DIVIDEND> 0.281
<PER-SHARE-DISTRIBUTIONS> 0.115
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 11.19
<EXPENSE-RATIO> 0.19
[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> 0000225997
<NAME> VANGUARD MUNICIPAL BOND FUNDS
<SERIES>
<NUMBER> 04
<NAME> VANGUARD HIGH-YIELD TAX-EXEMPT FUND
<MULTIPLIER> 1000
<CURRENCY> US
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> OCT-31-1999
<PERIOD-START> NOV-01-1998
<PERIOD-END> APR-30-1999
<EXCHANGE-RATE> 1
<INVESTMENTS-AT-COST> 2895910
<INVESTMENTS-AT-VALUE> 3059045
<RECEIVABLES> 53043
<ASSETS-OTHER> 490
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 3112578
<PAYABLE-FOR-SECURITIES> 18001
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 10429
<TOTAL-LIABILITIES> 28430
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 2941916
<SHARES-COMMON-STOCK> 282508
<SHARES-COMMON-PRIOR> 244498
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (22363)
<ACCUM-APPREC-OR-DEPREC> 164595
<NET-ASSETS> 3084148
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 76912
<OTHER-INCOME> 0
<EXPENSES-NET> 2687
<NET-INVESTMENT-INCOME> 74225
<REALIZED-GAINS-CURRENT> 8761
<APPREC-INCREASE-CURRENT> (28506)
<NET-CHANGE-FROM-OPS> 54480
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 74225
<DISTRIBUTIONS-OF-GAINS> 18021
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 56506
<NUMBER-OF-SHARES-REDEEMED> 24416
<SHARES-REINVESTED> 5920
<NET-CHANGE-IN-ASSETS> 379799
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 13103
<GROSS-ADVISORY-FEES> 169
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2788
<AVERAGE-NET-ASSETS> 2884506
<PER-SHARE-NAV-BEGIN> 11.06
<PER-SHARE-NII> 0.282
<PER-SHARE-GAIN-APPREC> (0.068)
<PER-SHARE-DIVIDEND> 0.282
<PER-SHARE-DISTRIBUTIONS> 0.072
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.92
<EXPENSE-RATIO> 0.20
[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> 0000225997
<NAME> VANGUARD MUNICIPAL BOND FUNDS
<SERIES>
<NUMBER> 05
<NAME> VANGUARD TAX-EXEMPT MONEY MARKET FUND
<MULTIPLIER> 1000
<CURRENCY> US
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> OCT-31-1999
<PERIOD-START> NOV-01-1998
<PERIOD-END> APR-30-1999
<EXCHANGE-RATE> 1
<INVESTMENTS-AT-COST> 6414079
<INVESTMENTS-AT-VALUE> 6414079
<RECEIVABLES> 140217
<ASSETS-OTHER> 1398
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 6555694
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 36437
<TOTAL-LIABILITIES> 36437
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 6519899
<SHARES-COMMON-STOCK> 6519884
<SHARES-COMMON-PRIOR> 6246355
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (642)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 6519257
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 101298
<OTHER-INCOME> 0
<EXPENSES-NET> 6282
<NET-INVESTMENT-INCOME> 95016
<REALIZED-GAINS-CURRENT> (34)
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 94982
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 95016
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 4453341
<NUMBER-OF-SHARES-REDEEMED> 4268293
<SHARES-REINVESTED> 88482
<NET-CHANGE-IN-ASSETS> 273496
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (608)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 385
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 6319
<AVERAGE-NET-ASSETS> 6499935
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> 0.015
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND> 0.015
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> 0.19
[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
<RESTATED>
<CIK> 0000225997
<NAME> VANGUARD MUNICIPAL BOND FUNDS
<SERIES>
<NUMBER> 06
<NAME> VANGUARD INSURED LONG-TERM TAX-EXEMPT FUND
<MULTIPLIER> 1,000
<CURRENCY> US
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> OCT-31-1999
<PERIOD-START> NOV-01-1998
<PERIOD-END> APR-30-1999
<EXCHANGE-RATE> 1
<INVESTMENTS-AT-COST> 2130457
<INVESTMENTS-AT-VALUE> 2332827
<RECEIVABLES> 40002
<ASSETS-OTHER> 427
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 2373256
<PAYABLE-FOR-SECURITIES> 37379
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 6846
<TOTAL-LIABILITIES> 44225
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 2147322
<SHARES-COMMON-STOCK> 184937
<SHARES-COMMON-PRIOR> 175515
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 21647
<ACCUM-APPREC-OR-DEPREC> 203356
<NET-ASSETS> 2329031
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 60221
<OTHER-INCOME> 0
<EXPENSES-NET> 2138
<NET-INVESTMENT-INCOME> 58083
<REALIZED-GAINS-CURRENT> 17779
<APPREC-INCREASE-CURRENT> (31018)
<NET-CHANGE-FROM-OPS> 44844
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 58083
<DISTRIBUTIONS-OF-GAINS> 12266
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 18442
<NUMBER-OF-SHARES-REDEEMED> 12654
<SHARES-REINVESTED> 3654
<NET-CHANGE-IN-ASSETS> 93896
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 27160
<GROSS-ADVISORY-FEES> 137
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2220
<AVERAGE-NET-ASSETS> 2290896
<PER-SHARE-NAV-BEGIN> 12.73
<PER-SHARE-NII> 0.321
<PER-SHARE-GAIN-APPREC> (0.071)
<PER-SHARE-DIVIDEND> 0.321
<PER-SHARE-DISTRIBUTIONS> 0.069
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 12.59
<EXPENSE-RATIO> 0.20
[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
<RESTATED>
<CIK> 0000225997
<NAME> VANGUARD MUNICIPAL BOND FUNDS
<SERIES>
<NUMBER> 07
<NAME> VANGUARD LIMITED-TERM TAX-EXEMPT FUND
<MULTIPLIER> 1,000
<CURRENCY> US
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> OCT-31-1999
<PERIOD-START> NOV-01-1998
<PERIOD-END> APR-30-1999
<EXCHANGE-RATE> 1
<INVESTMENTS-AT-COST> 2469550
<INVESTMENTS-AT-VALUE> 2509078
<RECEIVABLES> 48240
<ASSETS-OTHER> 821
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 2558139
<PAYABLE-FOR-SECURITIES> 19901
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 11582
<TOTAL-LIABILITIES> 31483
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 2488547
<SHARES-COMMON-STOCK> 233471
<SHARES-COMMON-PRIOR> 215635
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (1419)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 39528
<NET-ASSETS> 2526656
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 53576
<OTHER-INCOME> 0
<EXPENSES-NET> 2281
<NET-INVESTMENT-INCOME> 51295
<REALIZED-GAINS-CURRENT> 445
<APPREC-INCREASE-CURRENT> (7559)
<NET-CHANGE-FROM-OPS> 44181
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 51295
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 53499
<NUMBER-OF-SHARES-REDEEMED> 39379
<SHARES-REINVESTED> 3715
<NET-CHANGE-IN-ASSETS> 186476
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (1864)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 144
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2414
<AVERAGE-NET-ASSETS> 2445165
<PER-SHARE-NAV-BEGIN> 10.85
<PER-SHARE-NII> 0.228
<PER-SHARE-GAIN-APPREC> (0.030)
<PER-SHARE-DIVIDEND> 0.228
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.82
<EXPENSE-RATIO> 0.20
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0
</TABLE>
