<SEC-DOCUMENT>0001193125-23-000360-index.html : 20230103
<SEC-HEADER>0001193125-23-000360.hdr.sgml : 20230103
<ACCEPTANCE-DATETIME>20230103094534
ACCESSION NUMBER:		0001193125-23-000360
CONFORMED SUBMISSION TYPE:	N-CSR
PUBLIC DOCUMENT COUNT:		10
CONFORMED PERIOD OF REPORT:	20221031
FILED AS OF DATE:		20230103
DATE AS OF CHANGE:		20230103
EFFECTIVENESS DATE:		20230103

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WESTERN ASSET MUNICIPAL HIGH INCOME FUND INC.
		CENTRAL INDEX KEY:			0000830487
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		N-CSR
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-05497
		FILM NUMBER:		23500601

	BUSINESS ADDRESS:	
		STREET 1:		620 EIGHTH AVENUE
		STREET 2:		47TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10018
		BUSINESS PHONE:		888-777-0102

	MAIL ADDRESS:	
		STREET 1:		620 EIGHTH AVENUE
		STREET 2:		47TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10018

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MUNICIPAL HIGH INCOME FUND INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SPECIAL OPPORTUNITIES MUNICIPAL FUND INC
		DATE OF NAME CHANGE:	19881025
</SEC-HEADER>
<DOCUMENT>
<TYPE>N-CSR
<SEQUENCE>1
<FILENAME>d417719dncsr.htm
<DESCRIPTION>WESTERN ASSET MUNICIPAL HIGH INCOME FUND INC.
<TEXT>
Document 1 - file: d417719dncsr.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.CODE
<SEQUENCE>2
<FILENAME>d417719dex99code.htm
<DESCRIPTION>CODE OF ETHICS
<TEXT>
Document 2 - file: d417719dex99code.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.CERT
<SEQUENCE>3
<FILENAME>d417719dex99cert.htm
<DESCRIPTION>302 CERTIFICATIONS
<TEXT>
Document 3 - file: d417719dex99cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.906CERT
<SEQUENCE>4
<FILENAME>d417719dex99906cert.htm
<DESCRIPTION>906 CERTIFICATIONS
<TEXT>
Document 4 - file: d417719dex99906cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g417719g12u83.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g417719g12u83.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g417719g57q58.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g417719g57q58.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g417719janetrust_photo.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g417719janetrust_photo.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>g417719snap1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: g417719snap1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>g417719snap2.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: g417719snap2.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>g417719westassetlogo.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: g417719westassetlogo.jpg

</DOCUMENT>
</SEC-DOCUMENT>