<SEC-DOCUMENT>0001193125-23-004803-index.html : 20230109
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<ACCEPTANCE-DATETIME>20230109164509
ACCESSION NUMBER:		0001193125-23-004803
CONFORMED SUBMISSION TYPE:	N-CSR
PUBLIC DOCUMENT COUNT:		23
FILED AS OF DATE:		20230109
DATE AS OF CHANGE:		20230109
EFFECTIVENESS DATE:		20230109

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NUVEEN MUNICIPAL INCOME FUND INC
		CENTRAL INDEX KEY:			0000830271
		IRS NUMBER:				363566347
		STATE OF INCORPORATION:			MN
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		N-CSR
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-05488
		FILM NUMBER:		23518621

	BUSINESS ADDRESS:	
		STREET 1:		333 W WACKER DR
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		3129178200

	MAIL ADDRESS:	
		STREET 1:		333 W WACKER DRIVE
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
</SEC-HEADER>
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<TYPE>N-CSR
<SEQUENCE>1
<FILENAME>d426860dncsr.htm
<DESCRIPTION>NUVEEN MUNICIPAL INCOME FUND, INC.
<TEXT>
Document 1 - file: d426860dncsr.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.CERT
<SEQUENCE>2
<FILENAME>d426860dex99cert.htm
<DESCRIPTION>CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT
<TEXT>
Document 2 - file: d426860dex99cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.906CERT
<SEQUENCE>3
<FILENAME>d426860dex99906cert.htm
<DESCRIPTION>CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT
<TEXT>
Document 3 - file: d426860dex99906cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.IND PUB ACCT
<SEQUENCE>4
<FILENAME>d426860dex99indpubacct.htm
<DESCRIPTION>CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
<TEXT>
Document 4 - file: d426860dex99indpubacct.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>5
<FILENAME>cik0000830271-20230109.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA
<TEXT>
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<TYPE>EX-101.DEF
<SEQUENCE>6
<FILENAME>cik0000830271-20230109_def.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE
<TEXT>
Document 6 - file: cik0000830271-20230109_def.xml

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<TYPE>EX-101.LAB
<SEQUENCE>7
<FILENAME>cik0000830271-20230109_lab.xml
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<TEXT>
Document 7 - file: cik0000830271-20230109_lab.xml

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<TYPE>EX-101.PRE
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<TEXT>
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Document 11 - file: g426860g1nuv-21x13x1.gif

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Document 12 - file: g426860g1nuv-21x15x1.gif

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<FILENAME>g426860g1nuv-21x1x1.gif
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Document 13 - file: g426860g1nuv-21x1x1.gif

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Document 14 - file: g426860g1nuv-21x2x1.gif

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Document 15 - file: g426860g1nuv-21x4x1.gif

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Document 16 - file: g426860g1nuv-21x4x2.gif

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<TYPE>XML
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<FILENAME>R1.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 17 - file: R1.htm

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<TEXT>
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Document 18 - RAW XML: d426860dncsr_htm.xml

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<SEQUENCE>19
<FILENAME>Show.js
<DESCRIPTION>IDEA: XBRL DOCUMENT
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Document 19 - file: Show.js

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<DOCUMENT>
<TYPE>XML
<SEQUENCE>20
<FILENAME>report.css
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 20 - file: report.css

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<DOCUMENT>
<TYPE>XML
<SEQUENCE>21
<FILENAME>FilingSummary.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 21 - file: FilingSummary.html

Document 21 - RAW XML: FilingSummary.xml

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<DOCUMENT>
<TYPE>JSON
<SEQUENCE>23
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 23 - file: MetaLinks.json

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<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>24
<FILENAME>0001193125-23-004803-xbrl.zip
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<TEXT>
Document 24 - file: 0001193125-23-004803-xbrl.zip

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