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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 UDXcED5K/6242Rv/iellAQxxEmgIFS1Y9yA75tN6m4/Bm6HyWLGXMMFT3Ak0g4L/
 RjpWzbSwplBXiwHO/3HRXw==

<SEC-DOCUMENT>0000067517-06-000017.txt : 20060523
<SEC-HEADER>0000067517-06-000017.hdr.sgml : 20060523
<ACCEPTANCE-DATETIME>20060523151354
ACCESSION NUMBER:		0000067517-06-000017
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060519
FILED AS OF DATE:		20060523
DATE AS OF CHANGE:		20060523

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MONARCH CEMENT CO
		CENTRAL INDEX KEY:			0000067517
		STANDARD INDUSTRIAL CLASSIFICATION:	CONCRETE GYPSUM  PLASTER PRODUCTS [3270]
		IRS NUMBER:				480340590
		STATE OF INCORPORATION:			KS
		FISCAL YEAR END:			1206

	BUSINESS ADDRESS:	
		STREET 1:		P O BOX 1000
		CITY:			HUMBOLDT
		STATE:			KS
		ZIP:			66748
		BUSINESS PHONE:		6204732225

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			NIXON RICHARD N
		CENTRAL INDEX KEY:			0001229111

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-02757
		FILM NUMBER:		06861272

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		8166912419

	MAIL ADDRESS:	
		STREET 1:		STINSON MORRISON HECKER LLP
		STREET 2:		2600 GRAND BLVD
		CITY:			KANSAS CITY
		STATE:			MO
		ZIP:			64079
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2006-05-19</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000067517</issuerCik>
        <issuerName>MONARCH CEMENT CO</issuerName>
        <issuerTradingSymbol>MCEM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001229111</rptOwnerCik>
            <rptOwnerName>NIXON RICHARD N</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>STINSON MORRISON HECKER LLP</rptOwnerStreet1>
            <rptOwnerStreet2>1201 WALNUT STREET</rptOwnerStreet2>
            <rptOwnerCity>KANSAS CITY</rptOwnerCity>
            <rptOwnerState>MO</rptOwnerState>
            <rptOwnerZipCode>64106</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Capital Stock ($2.50 par value per share)</value>
            </securityTitle>
            <transactionDate>
                <value>2006-05-19</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>400</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>29.05</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>8400</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Keogh Plan Trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>Richard N. Nixon</signatureName>
        <signatureDate>2006-05-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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