<SEC-DOCUMENT>0001193125-25-143430-index.html : 20250620
<SEC-HEADER>0001193125-25-143430.hdr.sgml : 20250620
<ACCEPTANCE-DATETIME>20250620120211
ACCESSION NUMBER:		0001193125-25-143430
CONFORMED SUBMISSION TYPE:	N-CSRS
PUBLIC DOCUMENT COUNT:		12
CONFORMED PERIOD OF REPORT:	20250430
FILED AS OF DATE:		20250620
DATE AS OF CHANGE:		20250620
EFFECTIVENESS DATE:		20250620

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Duff & Phelps Utility & Infrastructure Fund Inc.
		CENTRAL INDEX KEY:			0001515671
		ORGANIZATION NAME:           	
		EIN:				452261437
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		N-CSRS
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-22533
		FILM NUMBER:		251059813

	BUSINESS ADDRESS:	
		STREET 1:		10 SOUTH WACKER DRIVE
		STREET 2:		SUITE 1900
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		(866) 270-7598

	MAIL ADDRESS:	
		STREET 1:		10 SOUTH WACKER DRIVE
		STREET 2:		SUITE 1900
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Duff & Phelps Global Utility Income Fund Inc.
		DATE OF NAME CHANGE:	20110627

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Duff & Phelps Global Utility & Midstream Energy Income Fund Inc.
		DATE OF NAME CHANGE:	20110316
</SEC-HEADER>
<DOCUMENT>
<TYPE>N-CSRS
<SEQUENCE>1
<FILENAME>d930307dncsrs.htm
<DESCRIPTION>DUFF & PHELPS UTILITY AND INFRASTRUCTURE FUND INC.
<TEXT>
Document 1 - file: d930307dncsrs.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.(A)(3)
<SEQUENCE>2
<FILENAME>d930307dex99a3.htm
<DESCRIPTION>CERTIFICATION PURSUANT TO SECTION 302
<TEXT>
Document 2 - file: d930307dex99a3.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.(B)
<SEQUENCE>3
<FILENAME>d930307dex99b.htm
<DESCRIPTION>CERTIFICATION PURSUANT TO SECTION 906
<TEXT>
Document 3 - file: d930307dex99b.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.(C)
<SEQUENCE>4
<FILENAME>d930307dex99c.htm
<DESCRIPTION>COPIES OF THE REGISTRANT'S NOTICES TO SHAREHOLDERS PURSUANT TO RULE 19A-1
<TEXT>
Document 4 - file: d930307dex99c.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g930307dsp14.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g930307dsp14.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g930307dsp19.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g930307dsp19.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g930307dsp19a.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g930307dsp19a.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>g930307dsp19b.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: g930307dsp19b.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>g930307img494a41403.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: g930307img494a41403.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>g930307img650034022.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: g930307img650034022.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>g930307imgab32cd224.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 11 - file: g930307imgab32cd224.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>g930307imgb7f4a2111.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 12 - file: g930307imgb7f4a2111.gif

</DOCUMENT>
</SEC-DOCUMENT>