<SEC-DOCUMENT>0001193125-15-001320-index.html : 20150105
<SEC-HEADER>0001193125-15-001320.hdr.sgml : 20150105
<ACCEPTANCE-DATETIME>20150105111712
ACCESSION NUMBER:		0001193125-15-001320
CONFORMED SUBMISSION TYPE:	N-CSRS
PUBLIC DOCUMENT COUNT:		16
CONFORMED PERIOD OF REPORT:	20141031
FILED AS OF DATE:		20150105
DATE AS OF CHANGE:		20150105
EFFECTIVENESS DATE:		20150105

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BLACKROCK MUNIASSETS FUND, INC.
		CENTRAL INDEX KEY:			0000901243
		IRS NUMBER:				223239638
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		N-CSRS
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-07642
		FILM NUMBER:		15503032

	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:	MUNIASSETS FUND INC
		DATE OF NAME CHANGE:	19930714

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MUNIINCOME FUND INC
		DATE OF NAME CHANGE:	19930517
</SEC-HEADER>
<DOCUMENT>
<TYPE>N-CSRS
<SEQUENCE>1
<FILENAME>d815309dncsrs.htm
<DESCRIPTION>BLACKROCK MUNIASSETS FUND, INC.
<TEXT>
Document 1 - file: d815309dncsrs.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.CERT
<SEQUENCE>2
<FILENAME>d815309dex99cert.htm
<DESCRIPTION>CERTIFICATIONS PURSUANT TO SECTION 302
<TEXT>
Document 2 - file: d815309dex99cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.906CERT
<SEQUENCE>3
<FILENAME>d815309dex99906cert.htm
<DESCRIPTION>CERTIFICATIONS PURSUANT TO SECTION 906
<TEXT>
Document 3 - file: d815309dex99906cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g815309g02q68.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g815309g02q68.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g815309g09g62.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g815309g09g62.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g815309g09h65.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g815309g09h65.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g815309g41l68.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g815309g41l68.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>g815309g51n99.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: g815309g51n99.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>g815309g60p62.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: g815309g60p62.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>g815309g62e83.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: g815309g62e83.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>g815309g65b16.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 11 - file: g815309g65b16.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>g815309g83y23.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 12 - file: g815309g83y23.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>g815309g98u13.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 13 - file: g815309g98u13.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>g815309leaf.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 14 - file: g815309leaf.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>15
<FILENAME>g815333photo_01mips.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 15 - file: g815333photo_01mips.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>16
<FILENAME>g815333sig_01mips.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 16 - file: g815333sig_01mips.jpg

</DOCUMENT>
</SEC-DOCUMENT>