<PAGE> PAGE 1
000 A000000 04/30/98
000 C000000 0000862716
000 D000000 N
000 E000000 NF
000 F000000 Y
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000 I000000 3.0.a
000 J000000 A
001 A000000 NUVEEN INVESTMENT QUALITY MUNICIPAL FUND,INC.
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001 C000000 3129178200
002 A000000 333 WEST WACKER DRIVE
002 B000000 CHICAGO
002 C000000 IL
002 D010000 60606
002 D020000 1286
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011 A000001 JOHN NUVEEN & CO.,INCORPORATED
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011 A000002 ALEX BROWN & SONS INCORPORATED
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011 C010002 BALTIMORE
011 C020002 MD
011 C030002 21202
<PAGE> PAGE 2
011 A000003 PRUDENTIAL - BACHE CAPITAL FUNDING
011 B000003 8-12321
011 C010003 NEW YORK
011 C020003 NY
011 C030003 10292
011 A000004 SMITH BARNEY HARRIS UPHAM & C0.
011 B000004 8-08177
011 C010004 NEW YORK
011 C020004 NY
011 C030004 10286
011 A000005 LEHMAN BROTHERS
011 B000005 8-12324
011 C010005 NEW YORK
011 C020005 NY
011 C030005 10281
011 A000006 PAINE WEBBER,INC.
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011 C010006 NEW YORK
011 C020006 NY
011 C030006 10019
011 C040006 1286
011 A000007 A.G.EDWARDS & SONS,INC.
011 B000007 8-13580
011 C010007 ST. LOUIS
011 C020007 MO
011 C030007 13580
011 A000008 MERRILL LYNCH & CO.
011 B000008 8-7221
011 C010008 NEW YORK
011 C020008 NY
011 C030008 10281
011 A000009 DEAN WITTER REYNOLDS,INC.
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011 C010009 NEW YORK
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011 C030009 10048
011 A000010 BLUNT ELLIS & LOEWI,INC.
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<PAGE> PAGE 3
013 A000001 ERNST & YOUNG
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013 B030001 60611
014 A000001 JOHN NUVEEN & CO.,INC
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015 A000001 CHASE MANHATTAN BANK
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015 C030003 10007
015 E010003 X
015 A000004 BANKERS TRUST COMPANY
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015 C010004 NEW YORK
015 C020004 NY
015 C030004 10015
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015 A000005 DELETE
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<PAGE> PAGE 4
022 D000001 16000
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022 C000002 19473
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022 A000003 PIPER JAFFRAY & HOPWOOD
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022 C000008 2587
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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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SIGNATURE STEPHEN D. FOY
TITLE V.P. & ASST. CONTROL
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains Summary Financial information extracted from the
Form N-SAR and the financial statements and is qualified in its entirety
by references to such documents.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> OCT-31-1998
<PERIOD-START> NOV-1-1997
<PERIOD-END> APR-30-1998
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<EXPENSE-RATIO> 0
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
