<SEC-DOCUMENT>0001752724-19-002715-index.html : 20190125
<SEC-HEADER>0001752724-19-002715.hdr.sgml : 20190125
<ACCEPTANCE-DATETIME>20190125115943
ACCESSION NUMBER:		0001752724-19-002715
CONFORMED SUBMISSION TYPE:	N-CEN/A
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20180630
FILED AS OF DATE:		20190125
DATE AS OF CHANGE:		20190125
EFFECTIVENESS DATE:		20190125

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BLACKROCK MUNICIPAL BOND FUND, INC.
		CENTRAL INDEX KEY:			0000225635
		IRS NUMBER:				132896246
		STATE OF INCORPORATION:			NJ
		FISCAL YEAR END:			0630

	FILING VALUES:
		FORM TYPE:		N-CEN/A
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-02688
		FILM NUMBER:		19541872

	BUSINESS ADDRESS:	
		STREET 1:		100 BELLEVUE PARKWAY
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19809
		BUSINESS PHONE:		800-441-7762

	MAIL ADDRESS:	
		STREET 1:		100 BELLEVUE PARKWAY
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19809

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MERRILL LYNCH MUNICIPAL BOND FUND INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ONE LIBERTY MUNICIPAL BOND FUND INC
		DATE OF NAME CHANGE:	19780622
</SEC-HEADER>
<DOCUMENT>
<TYPE>N-CEN/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
Document 1 - file: primary_doc.html

Document 1 - RAW XML: primary_doc.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>INTERNAL CONTROL RPT
<SEQUENCE>2
<FILENAME>Muni_4_IntCtrl.txt
<TEXT>
Document 2 - file: Muni_4_IntCtrl.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>OTHER REQUIRED INFO
<SEQUENCE>3
<FILENAME>C13_06302018.txt
<TEXT>
Document 3 - file: C13_06302018.txt

</DOCUMENT>
</SEC-DOCUMENT>