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    ITEM INFORMATION:		Results of Operations and Financial Condition
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Financial Statements and Exhibits
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    DATE AS OF CHANGE:		20200505

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    		COMPANY CONFORMED NAME:			MARTIN MARIETTA MATERIALS INC
    		CENTRAL INDEX KEY:			0000916076
    		STANDARD INDUSTRIAL CLASSIFICATION:	MINING, QUARRYING OF NONMETALLIC MINERALS (NO FUELS) [1400]
    		IRS NUMBER:				561848578
    		STATE OF INCORPORATION:			NC
    		FISCAL YEAR END:			1231

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    		SEC ACT:		1934 Act
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    		FILM NUMBER:		20849001

    	BUSINESS ADDRESS:
    		STREET 1:		2710 WYCLIFF ROAD
    		CITY:			RALEIGH
    		STATE:			NC
    		ZIP:			27607
    		BUSINESS PHONE:		919-781-4550

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    		CITY:			RALEIGH
    		STATE:			NC
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