    <SEC-DOCUMENT>0001104659-20-064554-index.html : 20200521
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    ACCESSION NUMBER:		0001104659-20-064554
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		30
    CONFORMED PERIOD OF REPORT:	20200521
    ITEM INFORMATION:		Submission of Matters to a Vote of Security Holders
    ITEM INFORMATION:		Other Events
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20200521
    DATE AS OF CHANGE:		20200521

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			MIDDLESEX WATER CO
    		CENTRAL INDEX KEY:			0000066004
    		STANDARD INDUSTRIAL CLASSIFICATION:	WATER SUPPLY [4941]
    		IRS NUMBER:				221114430
    		STATE OF INCORPORATION:			NJ
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-00422
    		FILM NUMBER:		20900257

    	BUSINESS ADDRESS:
    		STREET 1:		485C ROUTE 1 SOUTH
    		STREET 2:		SUITE 400
    		CITY:			ISELIN
    		STATE:			NJ
    		ZIP:			08830
    		BUSINESS PHONE:		7326341500

    	MAIL ADDRESS:
    		STREET 1:		485C ROUTE 1 SOUTH
    		STREET 2:		SUITE 400
    		CITY:			ISELIN
    		STATE:			NJ
    		ZIP:			08830
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