<PAGE> PAGE 1
000 B000000 04/30/96
000 C000000 0000917286
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 Y
000 H000000 N
000 I000000 3.0.a
000 J000000 A
001 A000000 FIDELITY HEREFORD STREET TRUST
001 B000000 811-7139
001 C000000 2145844081
002 A000000 1201 N. MARKET STREET, P.O. BOX 1347
002 B000000 WILMINGTON
002 C000000 DE
002 D010000 19899
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 Y
007 B000000 3
007 C010100 1
007 C020100 SPARTAN MONEY MARKET FUND
007 C030100 N
007 C010200 2
007 C020200 SPARTAN U.S. GOVERNMENT MONEY MARKET FUND
007 C030200 N
007 C010300 3
007 C020300 SPARTAN U.S. TREASURY MONEY MARKET FUND
007 C030300 N
007 C010400 4
007 C010500 5
007 C010600 6
007 C010700 7
007 C010800 8
007 C010900 9
007 C011000 10
008 A00AA01 FIDELITY MANAGEMENT & RESEARCH COMPANY
008 B00AA01 A
008 C00AA01 801-7884
008 D01AA01 BOSTON
008 D02AA01 MA
008 D03AA01 02109
008 A00AA02 FMR TEXAS INC.
008 B00AA02 S
008 C00AA02 801-3720
008 D01AA02 IRVING
008 D02AA02 TX
008 D03AA02 75039
011 A00AA01 FIDELITY DISTRIBUTORS CORPORATION
<PAGE> PAGE 2
011 B00AA01 8-8775
011 C01AA01 BOSTON
011 C02AA01 MA
011 C03AA01 02109
012 A00AA01 FIDELITY SERVICE CO.
012 B00AA01 84-00216
012 C01AA01 BOSTON
012 C02AA01 MA
012 C03AA01 02109
014 A00AA01 FIDELITY DISTRIBUTORS CORPORATION
014 B00AA01 8-8775
014 A00AA02 FIDELITY BROKERAGE SERVICES, INC.
014 B00AA02 8-23292
015 A00AA01 THE BANK OF NEW YORK
015 B00AA01 C
015 C01AA01 NEW YORK
015 C02AA01 NY
015 C03AA01 10286
015 E01AA01 X
018 00AA00 Y
019 A00AA00 Y
019 B00AA00 225
019 C00AA00 FIDELITYZZ
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 5287857
022 D000001 583796
022 A000002 MORGAN (J.P.) SECURITIES, INC.
022 B000002 13-3224016
022 C000002 3110375
022 D000002 1090798
022 A000003 LEHMAN BROTHERS INC.
022 B000003 13-2518466
022 C000003 2941695
022 D000003 1026176
022 A000004 SANWA SECURITIES, CO., L.P.
022 B000004 13-3046258
022 C000004 1265367
022 D000004 1194445
022 A000005 GENERAL MOTORS ACCEPTANCE CORPORATION
<PAGE> PAGE 3
022 B000005 00-0000000
022 C000005 2177964
022 D000005 0
022 A000006 FIRST BOSTON CORPORATION
022 B000006 13-5659485
022 C000006 1915307
022 D000006 194898
022 A000007 MERRILL LYNCH PIERCE, FENNER & SMITH
022 B000007 13-5674085
022 C000007 2281351
022 D000007 367715
022 A000008 FORD MOTOR CREDIT CORPORATION
022 B000008 00-0000000
022 C000008 1553613
022 D000008 169004
022 A000009 CHEMICAL SECURITIES, INC.
022 B000009 13-3379014
022 C000009 857172
022 D000009 632517
022 A000010 MORGAN STANLEY & CO., INC.
022 B000010 13-2655998
022 C000010 787446
022 D000010 495438
023 C000000 116961398
023 D000000 9834334
026 A000000 Y
026 B000000 Y
026 C000000 N
026 D000000 Y
026 E000000 N
026 F000000 Y
026 G010000 N
026 G020000 N
026 H000000 Y
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 Y
040 00AA00 Y
041 00AA00 N
<PAGE> PAGE 4
042 A00AA00 0
042 B00AA00 0
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 Y
046 00AA00 N
047 00AA00 Y
048 00AA00 0.450
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
054 A00AA00 Y
054 B00AA00 Y
054 C00AA00 Y
054 D00AA00 Y
054 E00AA00 Y
054 F00AA00 Y
054 G00AA00 Y
054 H00AA00 Y
054 I00AA00 N
054 J00AA00 Y
054 K00AA00 Y
054 L00AA00 Y
054 M00AA00 Y
054 N00AA00 Y
054 O00AA00 Y
<PAGE> PAGE 5
055 A00AA00 N
055 B00AA00 N
056 00AA00 Y
057 00AA00 N
058 A00AA00 N
059 00AA00 Y
060 A00AA00 Y
060 B00AA00 Y
061 00AA00 20000
066 A00AA00 N
067 00AA00 N
068 A00AA00 N
068 B00AA00 N
069 00AA00 N
077 A000000 Y
077 B000000 Y
077 C000000 N
077 D000000 N
077 E000000 N
077 F000000 N
077 G000000 N
077 H000000 N
077 I000000 N
077 J000000 N
077 K000000 N
077 L000000 N
077 M000000 N
077 O000000 N
077 P000000 N
077 Q010000 N
077 Q020000 N
077 Q030000 N
078 000000 N
080 A00AA00 FEDERAL INSURANCE COMPANY
080 B00AA00 NATIONAL UNION INSURANCE COMPANY
080 C00AA00 220000
081 A00AA00 Y
081 B00AA00 222
082 A00AA00 N
082 B00AA00 0
083 A00AA00 N
083 B00AA00 0
084 A00AA00 N
084 B00AA00 0
085 A00AA00 Y
085 B00AA00 N
013 A000101 COOPERS & LYBRAND L.L.P.
013 B010101 DALLAS
013 B020101 TX
013 B030101 75201
024 000100 N
<PAGE> PAGE 6
028 A010100 812121
028 A020100 36741
028 A030100 0
028 A040100 892573
028 B010100 953050
028 B020100 37408
028 B030100 0
028 B040100 1242668
028 C010100 1341217
028 C020100 36378
028 C030100 0
028 C040100 1332485
028 D010100 1131413
028 D020100 33497
028 D030100 0
028 D040100 978982
028 E010100 1169433
028 E020100 35638
028 E030100 0
028 E040100 1038518
028 F010100 883643
028 F020100 34164
028 F030100 0
028 F040100 1156059
028 G010100 6290877
028 G020100 213826
028 G030100 0
028 G040100 6641285
028 H000100 0
049 000100 N
050 000100 N
051 000100 N
052 000100 N
053 A000100 Y
053 B000100 Y
053 C000100 N
062 A000100 Y
062 B000100 1.5
062 C000100 9.9
062 D000100 2.4
062 E000100 0.0
062 F000100 1.8
062 G000100 32.3
062 H000100 0.5
062 I000100 33.2
062 J000100 0.0
062 K000100 0.0
062 L000100 18.4
062 M000100 0.0
062 N000100 0.0
062 O000100 0.0
<PAGE> PAGE 7
062 P000100 0.0
062 Q000100 0.0
062 R000100 0.0
063 A000100 55
063 B000100 0.0
064 A000100 Y
064 B000100 N
070 A010100 Y
070 A020100 Y
070 B010100 N
070 B020100 N
070 C010100 N
070 C020100 N
070 D010100 N
070 D020100 N
070 E010100 N
070 E020100 N
070 F010100 N
070 F020100 N
070 G010100 N
070 G020100 N
070 H010100 N
070 H020100 N
070 I010100 N
070 I020100 N
070 J010100 Y
070 J020100 Y
070 K010100 Y
070 K020100 N
070 L010100 Y
070 L020100 Y
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 Y
070 R020100 N
071 A000100 0
071 B000100 0
071 C000100 0
071 D000100 0
072 A000100 12
072 B000100 487070
072 C000100 0
072 D000100 0
<PAGE> PAGE 8
072 E000100 0
072 F000100 37282
072 G000100 0
072 H000100 0
072 I000100 0
072 J000100 0
072 K000100 0
072 L000100 0
072 M000100 33
072 N000100 0
072 O000100 0
072 P000100 0
072 Q000100 0
072 R000100 0
072 S000100 0
072 T000100 0
072 U000100 0
072 V000100 0
072 W000100 0
072 X000100 37315
072 Y000100 2102
072 Z000100 451857
072AA000100 0
072BB000100 161
072CC010100 0
072CC020100 0
072DD010100 451857
072DD020100 0
072EE000100 0
073 A010100 0.0544
073 A020100 0.0000
073 B000100 0.0000
073 C000100 0.0000
074 A000100 939
074 B000100 200708
074 C000100 8238064
074 D000100 0
074 E000100 0
074 F000100 0
074 G000100 0
074 H000100 0
074 I000100 0
074 J000100 23674
074 K000100 0
074 L000100 46202
074 M000100 0
074 N000100 8509587
074 O000100 47320
074 P000100 3177
074 Q000100 0
074 R010100 0
<PAGE> PAGE 9
074 R020100 0
074 R030100 0
074 R040100 8545
074 S000100 0
074 T000100 8450545
074 U010100 8452865
074 U020100 0
074 V010100 1.00
074 V020100 0.00
074 W000100 0.9995
074 X000100 110510
074 Y000100 0
075 A000100 8292330
075 B000100 0
076 000100 0.00
013 A000201 COOPERS & LYBRAND L.L.P
013 B010201 DALLAS
013 B020201 TX
013 B030201 75201
024 000200 Y
025 A000201 MORGAN (J.P.) SECURITIES, INC.
025 B000201 13-3224016
025 C000201 D
025 D000201 25000
025 A000202 DELETE
025 D000202 0
025 A000203 DELETE
025 D000203 0
025 D000204 0
025 D000205 0
025 D000206 0
025 D000207 0
025 D000208 0
028 A010200 50308
028 A020200 3267
028 A030200 0
028 A040200 67575
028 B010200 80266
028 B020200 3336
028 B030200 0
028 B040200 74433
028 C010200 83389
028 C020200 3259
028 C030200 0
028 C040200 86790
028 D010200 55648
028 D020200 2925
028 D030200 0
028 D040200 68245
028 E010200 69526
028 E020200 3081
<PAGE> PAGE 10
028 E030200 0
028 E040200 71127
028 F010200 81593
028 F020200 2974
028 F030200 0
028 F040200 84787
028 G010200 420730
028 G020200 18842
028 G030200 0
028 G040200 452957
028 H000200 0
049 000200 N
050 000200 N
051 000200 N
052 000200 N
053 A000200 Y
053 B000200 Y
053 C000200 N
062 A000200 Y
062 B000200 6.2
062 C000200 61.8
062 D000200 31.5
062 E000200 0.0
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 0.5
062 M000200 0.0
062 N000200 0.0
062 O000200 0.0
062 P000200 0.0
062 Q000200 0.0
062 R000200 0.0
063 A000200 36
063 B000200 0.0
064 A000200 Y
064 B000200 N
070 A010200 Y
070 A020200 Y
070 B010200 N
070 B020200 N
070 C010200 N
070 C020200 N
070 D010200 N
070 D020200 N
070 E010200 N
070 E020200 N
070 F010200 N
<PAGE> PAGE 11
070 F020200 N
070 G010200 N
070 G020200 N
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 N
070 Q010200 N
070 Q020200 N
070 R010200 Y
070 R020200 N
071 A000200 0
071 B000200 0
071 C000200 0
071 D000200 0
072 A000200 12
072 B000200 43734
072 C000200 0
072 D000200 0
072 E000200 0
072 F000200 3373
072 G000200 0
072 H000200 0
072 I000200 0
072 J000200 0
072 K000200 0
072 L000200 0
072 M000200 3
072 N000200 0
072 O000200 0
072 P000200 0
072 Q000200 0
072 R000200 0
072 S000200 0
072 T000200 0
072 U000200 0
072 V000200 0
<PAGE> PAGE 12
072 W000200 0
072 X000200 3376
072 Y000200 315
072 Z000200 40673
072AA000200 0
072BB000200 37
072CC010200 0
072CC020200 0
072DD010200 40673
072DD020200 0
072EE000200 0
073 A010200 0.0539
073 A020200 0.0000
073 B000200 0.0000
073 C000200 0.0000
074 A000200 3243
074 B000200 251015
074 C000200 545921
074 D000200 0
074 E000200 0
074 F000200 0
074 G000200 0
074 H000200 0
074 I000200 0
074 J000200 0
074 K000200 0
074 L000200 3833
074 M000200 0
074 N000200 804012
074 O000200 8613
074 P000200 282
074 Q000200 0
074 R010200 0
074 R020200 0
074 R030200 0
074 R040200 33642
074 S000200 0
074 T000200 761475
074 U010200 761647
074 U020200 0
074 V010200 1.00
074 V020200 0.00
074 W000200 1.0002
074 X000200 10000
074 Y000200 0
075 A000200 750307
075 B000200 0
076 000200 0.00
013 A000301 PRICE WATERHOUSE LLP
013 B010301 DALLAS
013 B020301 TX
<PAGE> PAGE 13
013 B030301 75201
024 000300 N
028 A010300 118549
028 A020300 7146
028 A030300 0
028 A040300 159601
028 B010300 250328
028 B020300 7354
028 B030300 0
028 B040300 170309
028 C010300 200123
028 C020300 7308
028 C030300 0
028 C040300 269040
028 D010300 167723
028 D020300 6617
028 D030300 0
028 D040300 174987
028 E010300 151403
028 E020300 7106
028 E030300 0
028 E040300 150124
028 F010300 157420
028 F020300 6883
028 F030300 0
028 F040300 187366
028 G010300 1045546
028 G020300 42414
028 G030300 0
028 G040300 1111427
028 H000300 0
049 000300 N
050 000300 N
051 000300 N
052 000300 N
053 A000300 Y
053 B000300 Y
053 C000300 N
062 A000300 Y
062 B000300 100.0
062 C000300 0.0
062 D000300 0.0
062 E000300 0.0
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
<PAGE> PAGE 14
062 N000300 0.0
062 O000300 0.0
062 P000300 0.0
062 Q000300 0.0
062 R000300 0.0
063 A000300 79
063 B000300 0.0
064 A000300 N
064 B000300 N
070 A010300 Y
070 A020300 N
070 B010300 N
070 B020300 N
070 C010300 N
070 C020300 N
070 D010300 N
070 D020300 N
070 E010300 N
070 E020300 N
070 F010300 N
070 F020300 N
070 G010300 N
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 N
070 Q010300 N
070 Q020300 N
070 R010300 Y
070 R020300 N
071 A000300 0
071 B000300 0
071 C000300 0
071 D000300 0
072 A000300 12
072 B000300 99148
<PAGE> PAGE 15
072 C000300 0
072 D000300 0
072 E000300 9
072 F000300 8016
072 G000300 0
072 H000300 0
072 I000300 0
072 J000300 0
072 K000300 0
072 L000300 0
072 M000300 7
072 N000300 0
072 O000300 0
072 P000300 0
072 Q000300 0
072 R000300 0
072 S000300 0
072 T000300 0
072 U000300 0
072 V000300 0
072 W000300 0
072 X000300 8023
072 Y000300 430
072 Z000300 91555
072AA000300 0
072BB000300 47
072CC010300 0
072CC020300 0
072DD010300 91555
072DD020300 0
072EE000300 0
073 A010300 0.0513
073 A020300 0.0000
073 B000300 0.0000
073 C000300 0.0000
074 A000300 0
074 B000300 0
074 C000300 1776470
074 D000300 0
074 E000300 0
074 F000300 0
074 G000300 0
074 H000300 0
074 I000300 0
074 J000300 0
074 K000300 0
074 L000300 23004
074 M000300 0
074 N000300 1799474
074 O000300 0
074 P000300 670
<PAGE> PAGE 16
074 Q000300 0
074 R010300 0
074 R020300 0
074 R030300 0
074 R040300 4041
074 S000300 0
074 T000300 1794763
074 U010300 1794898
074 U020300 0
074 V010300 1.00
074 V020300 0.00
074 W000300 0.9997
074 X000300 20287
074 Y000300 0
075 A000300 1782926
075 B000300 0
076 000300 0.00
SIGNATURE JOHN H. COSTELLO
TITLE ASSISTANT TREASURER
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000917286
<NAME> Fidelity Hereford Street Trust
<SERIES>
<NUMBER> 31
<NAME> Spartan U.S. Treasury Money Market Fund
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
Year
<FISCAL-YEAR-END>
Apr-30-1996
<PERIOD-END>
Apr-30-1996
<INVESTMENTS-AT-COST>
1,776,470
<INVESTMENTS-AT-VALUE>
1,776,470
<RECEIVABLES>
23,004
<ASSETS-OTHER>
0
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
1,799,474
<PAYABLE-FOR-SECURITIES>
0
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
4,711
<TOTAL-LIABILITIES>
4,711
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
1,794,898
<SHARES-COMMON-STOCK>
1,794,898
<SHARES-COMMON-PRIOR>
1,677,783
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(135)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
1,794,763
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
99,148
<OTHER-INCOME>
0
<EXPENSES-NET>
7,593
<NET-INVESTMENT-INCOME>
91,555
<REALIZED-GAINS-CURRENT>
(47)
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
91,508
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
91,555
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
1,906,021
<NUMBER-OF-SHARES-REDEEMED>
1,876,256
<SHARES-REINVESTED>
87,350
<NET-CHANGE-IN-ASSETS>
117,068
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(88)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
8,016
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
8,023
<AVERAGE-NET-ASSETS>
1,782,926
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.051
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
.051
<PER-SHARE-DISTRIBUTIONS>
0
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
43
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000917286
<NAME> Fidelity Hereford Street Trust
<SERIES>
<NUMBER> 11
<NAME> Spartan Money Market Fund
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
Year
<FISCAL-YEAR-END>
Apr-30-1996
<PERIOD-END>
Apr-30-1996
<INVESTMENTS-AT-COST>
8,438,772
<INVESTMENTS-AT-VALUE>
8,438,772
<RECEIVABLES>
69,876
<ASSETS-OTHER>
939
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
8,509,587
<PAYABLE-FOR-SECURITIES>
47,320
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
11,722
<TOTAL-LIABILITIES>
59,042
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
8,453,376
<SHARES-COMMON-STOCK>
8,452,865
<SHARES-COMMON-PRIOR>
7,637,510
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(2,831)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
8,450,545
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
487,070
<OTHER-INCOME>
0
<EXPENSES-NET>
35,213
<NET-INVESTMENT-INCOME>
451,857
<REALIZED-GAINS-CURRENT>
(161)
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
451,696
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
451,857
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
12,078,072
<NUMBER-OF-SHARES-REDEEMED>
11,698,500
<SHARES-REINVESTED>
435,783
<NET-CHANGE-IN-ASSETS>
815,194
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(2,670)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
37,282
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
37,315
<AVERAGE-NET-ASSETS>
8,292,330
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.054
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
.054
<PER-SHARE-DISTRIBUTIONS>
0
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
42
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000917286
<NAME> Fidelity Hereford Street Trust
<SERIES>
<NUMBER> 21
<NAME> Spartan U.S. Government Money Market Fund
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
Year
<FISCAL-YEAR-END>
Apr-30-1996
<PERIOD-END>
Apr-30-1996
<INVESTMENTS-AT-COST>
796,936
<INVESTMENTS-AT-VALUE>
796,936
<RECEIVABLES>
3,833
<ASSETS-OTHER>
3,243
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
804,012
<PAYABLE-FOR-SECURITIES>
8,613
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
33,924
<TOTAL-LIABILITIES>
42,537
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
761,647
<SHARES-COMMON-STOCK>
761,647
<SHARES-COMMON-PRIOR>
707,329
<ACCUMULATED-NII-CURRENT>
0
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(172)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
0
<NET-ASSETS>
761,475
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
43,734
<OTHER-INCOME>
0
<EXPENSES-NET>
3,061
<NET-INVESTMENT-INCOME>
40,673
<REALIZED-GAINS-CURRENT>
(37)
<APPREC-INCREASE-CURRENT>
0
<NET-CHANGE-FROM-OPS>
40,636
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
40,673
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
809,406
<NUMBER-OF-SHARES-REDEEMED>
793,716
<SHARES-REINVESTED>
38,628
<NET-CHANGE-IN-ASSETS>
54,281
<ACCUMULATED-NII-PRIOR>
0
<ACCUMULATED-GAINS-PRIOR>
(135)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
0
<GROSS-ADVISORY-FEES>
3,373
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
3,376
<AVERAGE-NET-ASSETS>
750,307
<PER-SHARE-NAV-BEGIN>
1.000
<PER-SHARE-NII>
.054
<PER-SHARE-GAIN-APPREC>
0
<PER-SHARE-DIVIDEND>
.054
<PER-SHARE-DISTRIBUTIONS>
0
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
1.000
<EXPENSE-RATIO>
41
<AVG-DEBT-OUTSTANDING>
0
<AVG-DEBT-PER-SHARE>
0
</TABLE>
