    <SEC-DOCUMENT>0001193125-25-198180-index.html : 20250908
    <SEC-HEADER>0001193125-25-198180.hdr.sgml : 20250908
    <ACCEPTANCE-DATETIME>20250908142853
    ACCESSION NUMBER:		0001193125-25-198180
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		6
    CONFORMED PERIOD OF REPORT:	20251015
    FILED AS OF DATE:		20250908
    DATE AS OF CHANGE:		20250908

    FILER:

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

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	811-07642
    		FILM NUMBER:		251299636

    	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

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			BlackRock Long-Term Municipal Advantage Trust
    		CENTRAL INDEX KEY:			0001343793
    		ORGANIZATION NAME:
    		EIN:				000000000

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	811-21835
    		FILM NUMBER:		251299637

    	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:	BlackRock Municipal Advantage Income Trust
    		DATE OF NAME CHANGE:	20051108
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEF 14A
    <SEQUENCE>1
    <FILENAME>d113931ddef14a.htm
    <DESCRIPTION>(MUA/BTA)
    <TEXT>
    Document 1 - file: d113931ddef14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>g113931dsp0180.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: g113931dsp0180.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>g113931dsp0181.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: g113931dsp0181.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>g113931dsp176.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: g113931dsp176.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>g113931dsp178.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: g113931dsp178.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>g113931g0805233830731.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: g113931g0805233830731.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>