<PAGE> PAGE 1
000 A000000 06/30/97
000 C000000 741558
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 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 DAIN BOSWORTH, INC.
022 B000001 410212020
022 C000001 18627
022 D000001 12683
022 A000002 SEATTLE N.W. SECURITIES
022 B000002 911172183
022 C000002 6768
022 D000002 243
022 A000003 SMITH BARNEY, SHEARSON
022 B000003 131912900
022 C000003 4227
022 D000003 2061
022 A000004 PIPER JAFFRAY & HOPWOOD
022 B000004 410953246
022 C000004 538
022 D000004 2506
022 A000005 BLAIR (WILLIAM) & COMPANY
022 B000005 362214610
022 C000005 1175
022 D000005 1295
022 A000006 PAINE WEBBER
022 B000006 132638166
022 C000006 19
022 D000006 1740
022 A000007 CHARTER INVESTMENT GROUP
022 B000007 930683889
022 C000007 1341
022 D000007 0
022 A000008 U.S. NATIONAL BANK OF OREGON
<PAGE> PAGE 2
022 B000008 930571729
022 C000008 71
022 D000008 1065
022 A000009 LEHMAN BROTHERS
022 B000009 132518466
022 C000009 1105
022 D000009 0
022 A000010 DRIZOS INVESTMENTS, INC.
022 B000010 840940766
022 C000010 477
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<PAGE> PAGE 4
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<PAGE> PAGE 5
078 000000 N
SIGNATURE GEORGE HANSETH
TITLE SR. VICE PRESIDENT
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
UN-AUDITED SEMI-ANNUAL REPORT OF THE COLUMBIA FUNDS DATED 06/30/97, AND THE
AUDITED ANNUAL REPORT OF THE COLUMBIA FUNDS DATED 12/31/96, 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-31-1997
<PERIOD-START> JAN-01-1997
<PERIOD-END> JUN-30-1997
<INVESTMENTS-AT-COST> 365,079,709
<INVESTMENTS-AT-VALUE> 379,660,404
<RECEIVABLES> 5,107,693
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 5,792,640
<TOTAL-ASSETS> 390,560,737
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 887,492
<TOTAL-LIABILITIES> 887,492
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 374,375,578
<SHARES-COMMON-STOCK> 31,980,870
<SHARES-COMMON-PRIOR> 30,931,729
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 716,972
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 14,580,695
<NET-ASSETS> 389,673,245
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 10,501,635
<OTHER-INCOME> 0
<EXPENSES-NET> 1,098,634
<NET-INVESTMENT-INCOME> 9,403,001
<REALIZED-GAINS-CURRENT> 567,823
<APPREC-INCREASE-CURRENT> 673,279
<NET-CHANGE-FROM-OPS> 10,644,103
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 9,407,725
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 3,555,418
<NUMBER-OF-SHARES-REDEEMED> 3,125,256
<SHARES-REINVESTED> 618,979
<NET-CHANGE-IN-ASSETS> 14,005,815
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 149,182
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 944,657
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1,098,634
<AVERAGE-NET-ASSETS> 381,468,147
<PER-SHARE-NAV-BEGIN> 12.15
<PER-SHARE-NII> .30
<PER-SHARE-GAIN-APPREC> .03
<PER-SHARE-DIVIDEND> (.30)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 12.18
<EXPENSE-RATIO> .58
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
