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ACCESSION NUMBER:		0001193125-25-134192
CONFORMED SUBMISSION TYPE:	424B5
PUBLIC DOCUMENT COUNT:		14
FILED AS OF DATE:		20250603
DATE AS OF CHANGE:		20250603

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

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		FORM TYPE:		424B5
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-287753
		FILM NUMBER:		251020875

	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
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