<PAGE> PAGE 1
000 A000000 06/30/96
000 C000000 741558
000 D000000 N
000 E000000 NF
000 F000000 Y
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000 H000000 N
000 I000000 3.0.a
000 J000000 U
001 A000000 COLUMBIA MUNICIPAL BOND FUND, INC.
001 B000000 811-3983
001 C000000 5032223600
002 A000000 1301 SW FIFTH AVENUE
002 B000000 PORTLAND
002 C000000 OR
002 D010000 97201
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 N
007 B000000 0
022 A000001 SMITH BARNEY, SHEARSON
022 B000001 131912900
022 C000001 18709
022 D000001 18593
022 A000002 DAIN BOSWORTH, INC.
022 B000002 410212020
022 C000002 12051
022 D000002 14704
022 A000003 SEATTLE N.W. SECURITIES
022 B000003 911172183
022 C000003 4080
022 D000003 1364
022 A000004 CHILTON & O'CONNOR, INC.
022 B000004 954025174
022 C000004 945
022 D000004 0
022 A000005 SEATTLE FIRST NATIONAL BANK
022 B000005 910402650
022 C000005 851
022 D000005 0
022 A000006 CHARTER INVESTMENT GROUP
022 B000006 930683889
022 C000006 616
022 D000006 191
022 A000007 PAINE WEBBER
022 B000007 132638166
022 C000007 616
022 D000007 0
022 A000008 DRIZOS INVESTMENTS, INC.
<PAGE> PAGE 2
022 B000008 840940766
022 C000008 240
022 D000008 0
022 A000009 OPPENHEIMER & CO.
022 B000009 132798343
022 C000009 137
022 D000009 0
022 A000010 PACIFIC CREST SECURITIES
022 B000010 930625230
022 C000010 100
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<PAGE> PAGE 3
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<PAGE> PAGE 4
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SIGNATURE GEORGE HANSETH
TITLE SR. VICE PRESIDENT
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
UNAUDITED SEMI-ANNUAL REPORT OF THE COLUMBIA FUNDS DATED 6/30/96, AND THE
AUDITED ANNUAL REPORT OF THE COLUMBIA FUNDS DATED 12/31/95, AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<CIK> 0000741558
<NAME> COLUMBIA MUNICIPAL BOND FUND, INC.
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-1996
<PERIOD-START> JAN-01-1996
<PERIOD-END> JUN-30-1996
<INVESTMENTS-AT-COST> 354,352,598
<INVESTMENTS-AT-VALUE> 362,853,627
<RECEIVABLES> 6,789,790
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 3,102,625
<TOTAL-ASSETS> 372,746,042
<PAYABLE-FOR-SECURITIES> 879,901
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 594,997
<TOTAL-LIABILITIES> 1,474,898
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 361,468,513
<SHARES-COMMON-STOCK> 30,912,436
<SHARES-COMMON-PRIOR> 31,014,220
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 1,301,602
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 8,501,029
<NET-ASSETS> 371,271,144
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 10,459,334
<OTHER-INCOME> 0
<EXPENSES-NET> (1,054,111)
<NET-INVESTMENT-INCOME> 9,405,223
<REALIZED-GAINS-CURRENT> 1,341,477
<APPREC-INCREASE-CURRENT> (12,639,347)
<NET-CHANGE-FROM-OPS> (1,892,647)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (9,405,223)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 2,610,839
<NUMBER-OF-SHARES-REDEEMED> (3,341,784)
<SHARES-REINVESTED> 629,161
<NET-CHANGE-IN-ASSETS> (12,524,774)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (39,875)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 935,980
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1,054,111
<AVERAGE-NET-ASSETS> 377,113,826
<PER-SHARE-NAV-BEGIN> 12.37
<PER-SHARE-NII> .30
<PER-SHARE-GAIN-APPREC> (.36)
<PER-SHARE-DIVIDEND> (.30)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 12.01
<EXPENSE-RATIO> .56
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
