<PAGE>
000 A000000 01/31/98
000 C000000 0000049717
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 IDS NEW DIMENSIONS FUND, INC.
001 B000000 811-1629
001 C000000 6126712772
002 A000000 IDS TOWER 10
002 B000000 MINNEAPOLIS
002 C000000 MN
002 D010000 55440
002 D020000 0010
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 Y
007 B000000 3
007 C010100 1
007 C020100 IDS NEW DIMENSIONS FUND CLASS A
007 C030100 N
007 C010200 2
007 C020200 IDS NEW DIMENSIONS FUND CLASS B
007 C030200 N
007 C010300 3
007 C020300 IDS NEW DIMENSIONS FUND CLASS Y
007 C030300 N
007 C010400 4
007 C010500 5
007 C010600 6
007 C010700 7
007 C010800 8
007 C010900 9
007 C011000 10
011 A00AA01 AMERICAN EXPRESS FINANCIAL ADVISORS INC.
011 B00AA01 8-16791
011 C01AA01 MINNEAPOLIS
011 C02AA01 MN
011 C03AA01 55440
011 C04AA01 0010
012 A00AA01 AMERICAN EXPRESS FINANCIAL CORPORATION
012 B00AA01 84-456
012 C01AA01 MINNEAPOLIS
012 C02AA01 MN
012 C03AA01 55440
012 C04AA01 0010
<PAGE>
013 A00AA01 KPMG PEAT MARWICK LLP
013 B01AA01 MINNEAPOLIS
013 B02AA01 MN
013 B03AA01 55402
013 B04AA01 3900
015 A00AA01 AMERICAN EXPRESS TRUST COMPANY
015 B00AA01 C
015 C01AA01 MINNEAPOLIS
015 C02AA01 MN
015 C03AA01 55402
015 C04AA01 2307
015 E01AA01 X
015 A00AA02 MORGAN STANLEY TRUST COMPANY
015 B00AA02 S
015 C01AA02 BROOKLYN
015 C02AA02 NY
015 C03AA02 11201
015 C04AA02 2775
015 E04AA02 X
018 00AA00 N
019 A00AA00 Y
019 B00AA00 47
019 C00AA00 IDSMUTFDGR
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 C000001 0
022 D000001 0
022 C000002 0
022 D000002 0
022 C000003 0
022 D000003 0
022 C000004 0
022 D000004 0
022 C000005 0
022 D000005 0
022 C000006 0
022 D000006 0
022 C000007 0
022 D000007 0
022 C000008 0
022 D000008 0
022 C000009 0
<PAGE>
022 D000009 0
022 C000010 0
022 D000010 0
023 C000000 0
023 D000000 0
026 A000000 N
026 B000000 N
026 C000000 N
026 D000000 N
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 N
026 H000000 N
027 000000 Y
028 A01AA00 333278
028 A02AA00 3
028 A03AA00 0
028 A04AA00 223850
028 B01AA00 353915
028 B02AA00 1
028 B03AA00 0
028 B04AA00 245172
028 C01AA00 387139
028 C02AA00 1
028 C03AA00 0
028 C04AA00 216448
028 D01AA00 280319
028 D02AA00 7
028 D03AA00 0
028 D04AA00 161047
028 E01AA00 363486
028 E02AA00 1048049
028 E03AA00 0
028 E04AA00 269849
028 F01AA00 347447
028 F02AA00 0
028 F03AA00 0
028 F04AA00 263780
028 G01AA00 2065584
028 G02AA00 1048061
028 G03AA00 0
028 G04AA00 1380146
028 H00AA00 865366
045 00AA00 N
048 00AA00 0.000
048 A01AA00 0
048 A02AA00 0.000
048 B01AA00 0
048 B02AA00 0.000
048 C01AA00 0
<PAGE>
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
055 A00AA00 N
055 B00AA00 N
056 00AA00 N
057 00AA00 N
058 A00AA00 N
059 00AA00 Y
060 A00AA00 Y
060 B00AA00 Y
061 00AA00 100
062 A00AA00 N
062 B00AA00 0.0
062 C00AA00 0.0
062 D00AA00 0.0
062 E00AA00 0.0
062 F00AA00 0.0
062 G00AA00 0.0
062 H00AA00 0.0
062 I00AA00 0.0
062 J00AA00 0.0
062 K00AA00 0.0
062 L00AA00 0.0
062 M00AA00 0.0
062 N00AA00 0.0
062 O00AA00 0.0
062 P00AA00 0.0
062 Q00AA00 0.0
062 R00AA00 0.0
063 A00AA00 0
063 B00AA00 0.0
066 A00AA00 N
067 00AA00 N
068 A00AA00 N
068 B00AA00 N
069 00AA00 N
<PAGE>
070 A01AA00 N
070 A02AA00 N
070 B01AA00 N
070 B02AA00 N
070 C01AA00 N
070 C02AA00 N
070 D01AA00 N
070 D02AA00 N
070 E01AA00 N
070 E02AA00 N
070 F01AA00 N
070 F02AA00 N
070 G01AA00 N
070 G02AA00 N
070 H01AA00 N
070 H02AA00 N
070 I01AA00 N
070 I02AA00 N
070 J01AA00 N
070 J02AA00 N
070 K01AA00 N
070 K02AA00 N
070 L01AA00 N
070 L02AA00 N
070 M01AA00 N
070 M02AA00 N
070 N01AA00 N
070 N02AA00 N
070 O01AA00 N
070 O02AA00 N
070 P01AA00 N
070 P02AA00 N
070 Q01AA00 N
070 Q02AA00 N
070 R01AA00 N
070 R02AA00 N
071 A00AA00 0
071 B00AA00 0
071 C00AA00 0
071 D00AA00 0
072 A00AA00 6
072 B00AA00 41373
072 C00AA00 66742
072 D00AA00 0
072 E00AA00 0
072 F00AA00 35182
072 G00AA00 2413
072 H00AA00 0
072 I00AA00 6854
072 J00AA00 0
072 K00AA00 218
<PAGE>
072 L00AA00 100
072 M00AA00 13
072 N00AA00 554
072 O00AA00 0
072 P00AA00 0
072 Q00AA00 0
072 R00AA00 5
072 S00AA00 0
072 T00AA00 6324
072 U00AA00 0
072 V00AA00 0
072 W00AA00 10849
072 X00AA00 62512
072 Y00AA00 587
072 Z00AA00 46190
072AA00AA00 883506
072BB00AA00 0
072CC01AA00 0
072CC02AA00 727005
072DD01AA00 89376
072DD02AA00 0
072EE00AA00 984397
073 A01AA00 0.0000
073 A02AA00 0.0000
073 B00AA00 0.0000
073 C00AA00 0.0000
074 A00AA00 0
074 B00AA00 0
074 C00AA00 0
074 D00AA00 0
074 E00AA00 0
074 F00AA00 0
074 G00AA00 0
074 H00AA00 0
074 I00AA00 0
074 J00AA00 0
074 K00AA00 0
074 L00AA00 0
074 M00AA00 14823446
074 N00AA00 14823446
074 O00AA00 0
074 P00AA00 154
074 Q00AA00 0
074 R01AA00 0
074 R02AA00 0
074 R03AA00 0
074 R04AA00 698
074 S00AA00 0
074 T00AA00 14822594
074 U01AA00 616686
074 U02AA00 0
<PAGE>
074 V01AA00 0.00
074 V02AA00 0.00
074 W00AA00 0.0000
074 X00AA00 939180
074 Y00AA00 0
075 A00AA00 0
075 B00AA00 14120322
076 00AA00 0.00
077 A000000 Y
077 B000000 N
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 N000000 N
077 O000000 N
077 P000000 N
077 Q010000 Y
077 Q020000 N
077 Q030000 N
078 000000 N
029 000100 Y
030 A000100 13730
030 B000100 5.00
030 C000100 0.50
031 A000100 4803
031 B000100 0
032 000100 0
033 000100 8927
037 000100 N
038 000100 0
039 000100 N
040 000100 N
041 000100 N
042 A000100 0
042 B000100 0
042 C000100 0
042 D000100 0
042 E000100 0
042 F000100 0
042 G000100 0
042 H000100 0
043 000100 0
044 000100 0
<PAGE>
029 000200 N
030 A000200 0
030 B000200 0.00
030 C000200 0.00
031 A000200 0
031 B000200 0
032 000200 0
033 000200 0
034 000200 Y
035 000200 625
036 A000200 N
036 B000200 0
037 000200 N
038 000200 0
039 000200 N
040 000200 Y
041 000200 Y
042 A000200 0
042 B000200 0
042 C000200 0
042 D000200 0
042 E000200 0
042 F000200 0
042 G000200 0
042 H000200 100
043 000200 6324
044 000200 0
029 000300 N
030 A000300 0
030 B000300 0.00
030 C000300 0.00
031 A000300 0
031 B000300 0
032 000300 0
033 000300 0
034 000300 N
035 000300 0
036 B000300 0
037 000300 N
038 000300 0
039 000300 N
040 000300 N
041 000300 N
042 A000300 0
042 B000300 0
042 C000300 0
042 D000300 0
042 E000300 0
042 F000300 0
042 G000300 0
042 H000300 0
<PAGE>
043 000300 0
044 000300 0
SIGNATURE LESLIE L. OGG
TITLE GENERAL COUNSEL
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 1
<NAME> IDS NEW DIMENSIONS FUND CLASS A
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUL-31-1998
<PERIOD-END> JAN-31-1998
<INVESTMENTS-AT-COST> 0
<INVESTMENTS-AT-VALUE> 0
<RECEIVABLES> 0
<ASSETS-OTHER> 14823445839
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 14823445839
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 852114
<TOTAL-LIABILITIES> 852114
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 9550721182
<SHARES-COMMON-STOCK> 374869866
<SHARES-COMMON-PRIOR> 337229836
<ACCUMULATED-NII-CURRENT> 7939765
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 393372437
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 4870560341
<NET-ASSETS> 9021547330
<DIVIDEND-INCOME> 66741918
<INTEREST-INCOME> 41373135
<OTHER-INCOME> 0
<EXPENSES-NET> 61925266
<NET-INVESTMENT-INCOME> 46189787
<REALIZED-GAINS-CURRENT> 883506272
<APPREC-INCREASE-CURRENT> (727005006)
<NET-CHANGE-FROM-OPS> 202691053
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 58194887
<DISTRIBUTIONS-OF-GAINS> 598215942
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 41963122
<NUMBER-OF-SHARES-REDEEMED> 31391153
<SHARES-REINVESTED> 27068061
<NET-CHANGE-IN-ASSETS> 862417164
<ACCUMULATED-NII-PRIOR> 51125860
<ACCUMULATED-GAINS-PRIOR> 494262891
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 21412831
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 62511841
<AVERAGE-NET-ASSETS> 8649093966
<PER-SHARE-NAV-BEGIN> 25.69
<PER-SHARE-NII> .09
<PER-SHARE-GAIN-APPREC> .19
<PER-SHARE-DIVIDEND> .17
<PER-SHARE-DISTRIBUTIONS> 1.73
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 24.07
<EXPENSE-RATIO> .81
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 2
<NAME> IDS NEW DIMENSIONS FUND CLASS B
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUL-31-1998
<PERIOD-END> JAN-31-1998
<INVESTMENTS-AT-COST> 0
<INVESTMENTS-AT-VALUE> 0
<RECEIVABLES> 0
<ASSETS-OTHER> 14823445839
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 14823445839
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 852114
<TOTAL-LIABILITIES> 852114
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 9550721182
<SHARES-COMMON-STOCK> 79249816
<SHARES-COMMON-PRIOR> 61161446
<ACCUMULATED-NII-CURRENT> 7939765
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 393372437
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 4870560341
<NET-ASSETS> 1886156854
<DIVIDEND-INCOME> 66741918
<INTEREST-INCOME> 41373135
<OTHER-INCOME> 0
<EXPENSES-NET> 61925266
<NET-INVESTMENT-INCOME> 46189787
<REALIZED-GAINS-CURRENT> 883506272
<APPREC-INCREASE-CURRENT> (727005006)
<NET-CHANGE-FROM-OPS> 202691053
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 1969568
<DISTRIBUTIONS-OF-GAINS> 123782372
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 15762298
<NUMBER-OF-SHARES-REDEEMED> 3097294
<SHARES-REINVESTED> 5423366
<NET-CHANGE-IN-ASSETS> 862417164
<ACCUMULATED-NII-PRIOR> 51125860
<ACCUMULATED-GAINS-PRIOR> 494262891
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 4476833
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 62511841
<AVERAGE-NET-ASSETS> 1681650454
<PER-SHARE-NAV-BEGIN> 25.38
<PER-SHARE-NII> .01
<PER-SHARE-GAIN-APPREC> .17
<PER-SHARE-DIVIDEND> .03
<PER-SHARE-DISTRIBUTIONS> 1.73
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 23.80
<EXPENSE-RATIO> 1.57
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 3
<NAME> IDS NEW DIMENSIONS FUND CLASS Y
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUL-31-1998
<PERIOD-END> JAN-31-1998
<INVESTMENTS-AT-COST> 0
<INVESTMENTS-AT-VALUE> 0
<RECEIVABLES> 0
<ASSETS-OTHER> 14823445839
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 14823445839
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 852114
<TOTAL-LIABILITIES> 852114
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 9550721182
<SHARES-COMMON-STOCK> 162566297
<SHARES-COMMON-PRIOR> 145611700
<ACCUMULATED-NII-CURRENT> 7939765
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 393372437
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 4870560341
<NET-ASSETS> 3914889541
<DIVIDEND-INCOME> 66741918
<INTEREST-INCOME> 41373135
<OTHER-INCOME> 0
<EXPENSES-NET> 61925266
<NET-INVESTMENT-INCOME> 46189787
<REALIZED-GAINS-CURRENT> 883506272
<APPREC-INCREASE-CURRENT> (727005006)
<NET-CHANGE-FROM-OPS> 202691053
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 29211427
<DISTRIBUTIONS-OF-GAINS> 262398412
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 25492189
<NUMBER-OF-SHARES-REDEEMED> 21033728
<SHARES-REINVESTED> 12496136
<NET-CHANGE-IN-ASSETS> 862417164
<ACCUMULATED-NII-PRIOR> 51125860
<ACCUMULATED-GAINS-PRIOR> 494262891
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 9292072
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 62511841
<AVERAGE-NET-ASSETS> 3779293804
<PER-SHARE-NAV-BEGIN> 25.72
<PER-SHARE-NII> .09
<PER-SHARE-GAIN-APPREC> .20
<PER-SHARE-DIVIDEND> .20
<PER-SHARE-DISTRIBUTIONS> 1.73
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 24.08
<EXPENSE-RATIO> .74
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
