<?xml version="1.0"?><ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-11-25</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000790988</issuerCik><issuerName>PENNROCK FINANCIAL SERVICES CORP</issuerName>        <issuerTradingSymbol>prfs</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001219475</rptOwnerCik><rptOwnerName>CRISP GEORGE B</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>1060 MAIN ST.</rptOwnerStreet1><rptOwnerStreet2></rptOwnerStreet2><rptOwnerCity>BLUE BALL</rptOwnerCity><rptOwnerState>PA</rptOwnerState><rptOwnerZipCode>17506</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>0</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>Vice President &amp; Treasurer</officerTitle></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeTransaction><securityTitle><value>Common Stock</value></securityTitle><transactionDate><value>2003-11-25</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>5</transactionFormType><transactionCode>P</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value>E</value></transactionTimeliness><transactionAmounts><transactionShares><value>49.0000</value></transactionShares><transactionPricePerShare><value>31.7900</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>636.1010</value><footnoteId id="F1" /></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></nonDerivativeTransaction></nonDerivativeTable><footnotes><footnote id="F1">Shares acquired pursuant to PennRock Financial Services Corp. Incentive Stock Plan of 2002 in transaction exempt under rule 16b-3.</footnote></footnotes><remarks></remarks><ownerSignature><signatureName>/s/George B. Crisp</signatureName><signatureDate>2003-12-05</signatureDate></ownerSignature></ownershipDocument>

