<PAGE> PAGE 1
000 A000000 06/30/2000
000 C000000 0000832473
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 6.1
000 J000000 U
001 A000000 NICHOLAS MONEY MARKET FUND, INC.
001 B000000 811-553700
001 C000000 4142724650
002 A000000 700 NORTH WATER STREET, SUITE 1010
002 B000000 MILWAUKEE
002 C000000 WI
002 D010000 53202
002 D020000 4276
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 N
007 B000000 0
022 A000001 FIRSTAR BANK, N.A.
022 B000001 39-0281225
022 C000001 61124
022 D000001 8827
022 A000002 CREDIT SUISSE FIRST BOSTON
022 B000002 13-5659485
022 C000002 56539
022 D000002 0
022 A000003 MORGAN STANLEY DEAN WITTER DISCOVER
022 B000003 13-2655978
022 C000003 56403
022 D000003 0
022 A000004 MARSHALL & ILSLEY
022 B000004 39-1610688
022 C000004 51479
022 D000004 0
022 A000005 GOLDMAN SACHS & CO.
022 B000005 13-5108880
022 C000005 40949
022 D000005 0
022 A000006 MERRILL LYNCH
022 B000006 39-1035790
022 C000006 35209
022 D000006 0
022 A000007 ASSOCIATES FIRST CAPITAL
022 B000007 06-0876639
022 C000007 24564
022 D000007 0
<PAGE> PAGE 2
022 A000008 CIT GROUP, INC.
022 B000008 13-2994534
022 C000008 23524
022 D000008 0
022 A000009 AMERICAN GENERAL FINANCE
022 B000009 35-0416090
022 C000009 18949
022 D000009 0
022 A000010 FORD MOTOR CREDIT CORP.
022 B000010 38-1612444
022 C000010 18762
022 D000010 0
023 C000000 519543
023 D000000 8827
025 A000001 MORGAN STANLEY DEAN WITTER DISCOVER
025 B000001 13-2655978
025 C000001 D
025 D000001 7442
025 A000002 BEAR STEARNS COMPANIES, INC.
025 B000002 13-4946705
025 C000002 D
025 D000002 7405
025 A000003 MERRILL LYNCH & CO., INC.
025 B000003 39-1035790
025 C000003 D
025 D000003 6624
025 A000004 SALOMON SMITH BARNEY, INC.
025 B000004 13-1412900
025 C000004 D
025 D000004 7427
025 D000005 0
025 D000006 0
025 D000007 0
025 D000008 0
028 A010000 19240
028 A020000 675
028 A030000 0
028 A040000 15736
028 B010000 23709
028 B020000 602
028 B030000 0
028 B040000 12186
028 C010000 14059
028 C020000 630
028 C030000 0
028 C040000 12719
028 D010000 6150
028 D020000 787
028 D030000 0
028 D040000 16012
028 E010000 7138
<PAGE> PAGE 3
028 E020000 655
028 E030000 0
028 E040000 8972
028 F010000 32147
028 F020000 726
028 F030000 0
028 F040000 11823
028 G010000 102443
028 G020000 4075
028 G030000 0
028 G040000 77448
028 H000000 0
062 A000000 Y
062 B000000 0.0
062 C000000 0.0
062 D000000 0.0
062 E000000 0.0
062 F000000 0.0
062 G000000 0.0
062 H000000 0.0
062 I000000 94.7
062 J000000 0.0
062 K000000 0.0
062 L000000 5.3
062 M000000 0.0
062 N000000 0.0
062 O000000 0.0
062 P000000 0.0
062 Q000000 0.0
062 R000000 0.0
063 A000000 36
063 B000000 0.0
064 A000000 Y
064 B000000 N
071 A000000 0
071 B000000 0
071 C000000 0
071 D000000 0
072 A000000 6
072 B000000 4790
072 C000000 0
072 D000000 0
072 E000000 0
072 F000000 230
072 G000000 0
072 H000000 0
072 I000000 56
072 J000000 4
072 K000000 12
072 L000000 7
072 M000000 3
<PAGE> PAGE 4
072 N000000 21
072 O000000 0
072 P000000 0
072 Q000000 0
072 R000000 0
072 S000000 25
072 T000000 0
072 U000000 0
072 V000000 0
072 W000000 3
072 X000000 361
072 Y000000 0
072 Z000000 4429
072AA000000 0
072BB000000 0
072CC010000 0
072CC020000 0
072DD010000 4429
072DD020000 0
072EE000000 0
073 A010000 0.0289
073 A020000 0.0000
073 B000000 0.0000
073 C000000 0.0000
074 A000000 36
074 B000000 0
074 C000000 170952
074 D000000 0
074 E000000 0
074 F000000 0
074 G000000 0
074 H000000 0
074 I000000 0
074 J000000 0
074 K000000 0
074 L000000 47
074 M000000 0
074 N000000 171035
074 O000000 0
074 P000000 43
074 Q000000 0
074 R010000 0
074 R020000 0
074 R030000 0
074 R040000 973
074 S000000 0
074 T000000 170019
074 U010000 170019
074 U020000 0
074 V010000 1.00
074 V020000 0.00
<PAGE> PAGE 5
074 W000000 0.9998
074 X000000 5271
074 Y000000 0
075 A000000 154447
075 B000000 0
076 000000 0.00
077 A000000 N
078 000000 N
SIGNATURE THOMAS J. SAEGER
TITLE EXEC. VICE-PRESIDENT