<?xml version="1.0"?><ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>3</documentType><periodOfReport>2004-01-05</periodOfReport><noSecuritiesOwned>0</noSecuritiesOwned><issuer><issuerCik>0000875623</issuerCik><issuerName>SPARTA INC /DE</issuerName>        <issuerTradingSymbol>none</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001276784</rptOwnerCik><rptOwnerName>CHIARO JODY L</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>25531 COMMERCENTRE DRIVE</rptOwnerStreet1><rptOwnerStreet2>SUITE 120</rptOwnerStreet2><rptOwnerCity>LAKE FOREST</rptOwnerCity><rptOwnerState>CA</rptOwnerState><rptOwnerZipCode>92630</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>0</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>VP of Human Resources</officerTitle></reportingOwnerRelationship></reportingOwner><derivativeTable><derivativeHolding><securityTitle><value>Common Stock</value></securityTitle><conversionOrExercisePrice><value>26.1400</value></conversionOrExercisePrice><exerciseDate><value>2004-01-05</value><footnoteId id="F1" /></exerciseDate><expirationDate><value>2004-04-04</value><footnoteId id="F2" /></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>750.0000</value></underlyingSecurityShares></underlyingSecurity><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>Common Stock</value></securityTitle><conversionOrExercisePrice><value>26.1400</value></conversionOrExercisePrice><exerciseDate><value>2004-01-05</value><footnoteId id="F3" /></exerciseDate><expirationDate><value>2008-01-05</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>750.0000</value></underlyingSecurityShares></underlyingSecurity><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeHolding></derivativeTable><footnotes><footnote id="F1">Represents grant date.  Options vest immediately.</footnote><footnote id="F2">Expires 90 days from grant date.</footnote><footnote id="F3">Reflects grant date.  Options are exercisable 20% on the first anniversary, 30% on the second and fully exercisable after the third year anniversary.  Options expire on the fourth anniversary of the grant date.</footnote></footnotes><remarks></remarks><ownerSignature><signatureName>/s/ Jerry R. Fabian as Attorney in Fact for Jody L. Chiaro</signatureName><signatureDate>2004-01-20</signatureDate></ownerSignature></ownershipDocument>

