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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 FaU7CJCRZeH3+UXVrICzXUzsmaxpkrIxDAxVtcp/yw1THxPFMcTeWnl8NnWep2+R
 iSD6Hy0qKmrNXzDiesm27w==

<SEC-DOCUMENT>0000950172-04-001611.txt : 20040630
<SEC-HEADER>0000950172-04-001611.hdr.sgml : 20040630
<ACCEPTANCE-DATETIME>20040630153230
ACCESSION NUMBER:		0000950172-04-001611
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040629
FILED AS OF DATE:		20040630

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			STRAYER EDUCATION INC
		CENTRAL INDEX KEY:			0001013934
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-EDUCATIONAL SERVICES [8200]
		IRS NUMBER:				521975978
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1100 WILSON BLVD., SUITE 2500
		CITY:			ARLINGTON
		STATE:			VA
		ZIP:			22209
		BUSINESS PHONE:		703-247-2500

	MAIL ADDRESS:	
		STREET 1:		1100 WILSON BLVD., SUITE 2500
		CITY:			ARLINGTON
		STATE:			VA
		ZIP:			22209

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			NEW MOUNTAIN PARTNERS LP
		CENTRAL INDEX KEY:			0001105474
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-21039
		FILM NUMBER:		04891337

	BUSINESS ADDRESS:	
		STREET 1:		C/O STEVEN B KLINKSY
		STREET 2:		712 FIFTH AVE 23RD FL
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
		BUSINESS PHONE:		2127200300

	MAIL ADDRESS:	
		STREET 1:		712 FIFTH AVE
		STREET 2:		23RD FL
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
</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>2004-06-29</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001013934</issuerCik>
        <issuerName>STRAYER EDUCATION INC</issuerName>
        <issuerTradingSymbol>STRA</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001105474</rptOwnerCik>
            <rptOwnerName>NEW MOUNTAIN PARTNERS LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>712 FIFTH AVE</rptOwnerStreet1>
            <rptOwnerStreet2>23RD FL</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2004-06-29</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>C</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>875120</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>26</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1642120</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Series A Convertible Preferred Stock</value>
                <footnoteId id="F2"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>26</value>
                <footnoteId id="F3"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2004-06-29</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>C</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>875120</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>26</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F4"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F5"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>875120</value>
                    <footnoteId id="F6"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">On June 29, 2004, New Mountain Partners, L.P. (&quot;New Mountain&quot;) converted all of its shares of Series A Convertible Preferred Stock of the Issuer (&quot;Series A Preferred Stock&quot;) in accordance with Article 7 of the Articles Supplementary of the Issuer.</footnote>
        <footnote id="F2">The Series A Preferred Stock is subject to certain restrictions as set forth in the Articles Supplementary of the Issuer, the Shareholders' Agreement, dated as of March 16, 2001, by and between New Mountain and MidOcean Capital Investors, L.P. (as successor to DB Capital Investors, L.P.)(&quot;MidOcean&quot;), the Letter Agreement, dated November 14, 2002, among the Issuer, New Mountain and MidOcean, the February 2004 Letter Agreement, dated February 3, 2004, among the Issuer, New Mountain and MidOcean, and the March 2004 Letter Agreement, dated March 9, 2004, among the Issuer, New Mountain, MidOcean and New Mountain Strayer Trust.</footnote>
        <footnote id="F3">The conversion price of the Series A Preferred Stock is subject to antidilution and other adjustments.</footnote>
        <footnote id="F4">The Series A Preferred Stock is immediately exercisable.</footnote>
        <footnote id="F5">There is no expiration date for the Series A Preferred Stock.</footnote>
        <footnote id="F6">The number of shares of Common Stock underlying the Series A Preferred Stock increases as dividends accumulate and compound on a daily basis.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>NEW MOUNTAIN PARTNERS, L.P., by its General Partner, New Mountain Investments, L.P., by its General Partner, New Mountain GP, LLC, Steven B. Klinsky, Member</signatureName>
        <signatureDate>2004-06-29</signatureDate>
    </ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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