<SEC-DOCUMENT>0001193125-23-187239.txt : 20230714
<SEC-HEADER>0001193125-23-187239.hdr.sgml : 20230714
<ACCEPTANCE-DATETIME>20230714154710
ACCESSION NUMBER:		0001193125-23-187239
CONFORMED SUBMISSION TYPE:	424B3
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20230714
DATE AS OF CHANGE:		20230714

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:		424B3
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-237289
		FILM NUMBER:		231089062

	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>
<DOCUMENT>
<TYPE>424B3
<SEQUENCE>1
<FILENAME>d526888d424b3.htm
<DESCRIPTION>NUVEEN MUNICIPAL INCOME FUND, INC.
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<TITLE>Nuveen Municipal Income Fund, Inc.</TITLE>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="right">Filed Pursuant to Rule 424(b)(3) </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="right">File <FONT STYLE="white-space:nowrap">No.&nbsp;333-237289</FONT> </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>N<SMALL>UVEEN</SMALL> M<SMALL>UNICIPAL</SMALL> I<SMALL>NCOME</SMALL> F<SMALL>UND</SMALL>, I<SMALL>NC</SMALL>. </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>(NYSE: NMI) </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>(<SMALL>THE</SMALL> &#147;F<SMALL>UND</SMALL>&#148;) </B></P>
<P STYLE="margin-top:14pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>S<SMALL>UPPLEMENT</SMALL> D<SMALL>ATED</SMALL> J<SMALL>ULY</SMALL>&nbsp;14, 2023 </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B><SMALL>TO</SMALL> <SMALL>THE</SMALL> F<SMALL>UND</SMALL>&#146;<SMALL>S</SMALL> P<SMALL>ROSPECTUS</SMALL> <SMALL>AND</SMALL>
S<SMALL>TATEMENT</SMALL> <SMALL>OF</SMALL> A<SMALL>DDITIONAL</SMALL> I<SMALL>NFORMATION</SMALL> (&#147;SAI&#148;) </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>D<SMALL>ATED</SMALL> S<SMALL>EPTEMBER</SMALL>&nbsp;23, 2020, <SMALL>EACH</SMALL> <SMALL>AS</SMALL> S<SMALL>UPPLEMENTED</SMALL> </B></P>
<P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:11pt; font-family:Times New Roman" ALIGN="justify">The Board of Directors of the Fund has approved a change to the Fund&#146;s maturity policy. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:11pt; font-family:Times New Roman" ALIGN="justify">Effective immediately, (1)&nbsp;the first sentence in the seventh bullet point of the fourth paragraph in the section of the Fund&#146;s
Prospectus Summary entitled &#147;Investment Objective and Policies&#148;; (2) the first sentence under &#147;Maturity and Duration&#148; in the section of the Fund&#146;s Prospectus entitled &#147;The Fund&#146;s Investments &#150; Municipal
Securities&#148;; and (3)&nbsp;the first two sentences in the eighth paragraph under &#147;Portfolio Composition &#150; Municipal Securities&#148; in the SAI are deleted in their entirety and replaced with the following: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; margin-left:7%; font-size:11pt; font-family:Times New Roman" ALIGN="justify">Under normal market conditions, the Fund will generally maintain an investment portfolio with an overall weighted average
maturity of greater than 10 years. </P> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:11pt; font-family:Times New Roman" ALIGN="center"><B>PLEASE KEEP THIS WITH YOUR </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:11pt; font-family:Times New Roman" ALIGN="center"><B>FUND&#146;S PROSPECTUS AND SAI FOR FUTURE REFERENCE </B></P>
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