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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0000916076-05-000165.txt : 20050907
<SEC-HEADER>0000916076-05-000165.hdr.sgml : 20050907
<ACCEPTANCE-DATETIME>20050907134221
ACCESSION NUMBER:		0000916076-05-000165
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050906
FILED AS OF DATE:		20050907
DATE AS OF CHANGE:		20050907

ISSUER:		

	COMPANY DATA:	
		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

	BUSINESS ADDRESS:	
		STREET 1:		2710 WYCLIFF RD
		CITY:			RALEIGH
		STATE:			NC
		ZIP:			27607
		BUSINESS PHONE:		9197814550

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BAR ROSELYN R
		CENTRAL INDEX KEY:			0001164744

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12744
		FILM NUMBER:		051072386

	BUSINESS ADDRESS:	
		STREET 1:		C/0 MARTIN MATERIALS INC
		STREET 2:		2710 WYCLIFF ROAD
		CITY:			RALEIGH
		STATE:			NC
		ZIP:			27607
		BUSINESS PHONE:		9197834675

	MAIL ADDRESS:	
		STREET 1:		C/O MARTIN MARIETTA MATERIALS INC
		STREET 2:		2710 WYCLIFF ROAD
		CITY:			RALEIGH
		STATE:			NC
		ZIP:			27607
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
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    <schemaVersion>X0202</schemaVersion>

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    <periodOfReport>2005-09-06</periodOfReport>

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        <issuerName>MARTIN MARIETTA MATERIALS INC</issuerName>
        <issuerTradingSymbol>MLM</issuerTradingSymbol>
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            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>RALEIGH</rptOwnerCity>
            <rptOwnerState>NC</rptOwnerState>
            <rptOwnerZipCode>27607</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>VP, Gen. Counsel and Secy</officerTitle>
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    </reportingOwner>

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                <value>Common Stock</value>
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            <transactionDate>
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                <transactionPricePerShare>
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            <transactionDate>
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            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
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            <ownershipNature>
                <directOrIndirectOwnership>
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                <natureOfOwnership>
                    <value>By 401(k) plan</value>
                </natureOfOwnership>
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        </nonDerivativeHolding>
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    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
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                <footnoteId id="F1"/>
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            <conversionOrExercisePrice>
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            <transactionDate>
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                <transactionAcquiredDisposedCode>
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            <expirationDate>
                <value>2006-07-10</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
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            </underlyingSecurity>
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            <transactionDate>
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            <transactionCoding>
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            <transactionAmounts>
                <transactionShares>
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                <transactionPricePerShare>
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                </transactionAcquiredDisposedCode>
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            <exerciseDate>
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            <expirationDate>
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                </underlyingSecurityTitle>
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                <directOrIndirectOwnership>
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    </derivativeTable>

    <footnotes>
        <footnote id="F1">Non-qualified stock option award granted under the Martin Marietta Materials, Inc. Amended and Restated Stock-Based Award Plan.  Options become exercisable in three equal annual installments commencing one year from the date of grant.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Roselyn R. Bar</signatureName>
        <signatureDate>2005-09-07</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----