<SEC-DOCUMENT>0001193125-25-058439-index.html : 20250703
<SEC-HEADER>0001193125-25-058439.hdr.sgml : 20250703
<ACCEPTANCE-DATETIME>20250320101146
<PRIVATE-TO-PUBLIC>
ACCESSION NUMBER:		0001193125-25-058439
CONFORMED SUBMISSION TYPE:	CORRESP
PUBLIC DOCUMENT COUNT:		5
FILED AS OF DATE:		20250320

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			UNITIL CORP
		CENTRAL INDEX KEY:			0000755001
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC & OTHER SERVICES COMBINED [4931]
		ORGANIZATION NAME:           	01 Energy & Transportation
		EIN:				020381573
		STATE OF INCORPORATION:			NH
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		CORRESP

	BUSINESS ADDRESS:	
		STREET 1:		6 LIBERTY LANE WEST
		CITY:			HAMPTON
		STATE:			NH
		ZIP:			03842
		BUSINESS PHONE:		6037736504

	MAIL ADDRESS:	
		STREET 1:		6 LIBERTY LANE WEST
		CITY:			HAMPTON
		STATE:			NH
		ZIP:			03842
</SEC-HEADER>
<DOCUMENT>
<TYPE>CORRESP
<SEQUENCE>1
<FILENAME>filename1.htm
<TEXT>
Document 1 - file: filename1.htm

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<SEQUENCE>2
<FILENAME>g904300g0320031629019.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g904300g0320031629019.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g904300g0320031629434.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g904300g0320031629434.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g904300g0320031629787.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g904300g0320031629787.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g904300snap1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g904300snap1.jpg

</DOCUMENT>
</SEC-DOCUMENT>