-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 MR1I1n2rouANt7SYybkxDhFoqLeIlyaCOdq2bwuHnn+hFlm4pTkWcqIBoroPFnFo
 Q+yvylCuamhyPaZmNt3phw==

<SEC-DOCUMENT>0001185948-03-000012.txt : 20031015
<SEC-HEADER>0001185948-03-000012.hdr.sgml : 20031013
<ACCEPTANCE-DATETIME>20031015192312
ACCESSION NUMBER:		0001185948-03-000012
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20031015
FILED AS OF DATE:		20031015

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WALKER ROBERT M
		CENTRAL INDEX KEY:			0001185948
		STATE OF INCORPORATION:			CA

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-30707
		FILM NUMBER:		03942665

	BUSINESS ADDRESS:	
		STREET 1:		P O BOX 547
		CITY:			DIXON
		STATE:			CA
		ZIP:			95620
		BUSINESS PHONE:		707 678 3041

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FIRST NORTHERN COMMUNITY BANCORP
		CENTRAL INDEX KEY:			0001114927
		STANDARD INDUSTRIAL CLASSIFICATION:	SAVINGS INSTITUTION, FEDERALLY CHARTERED [6035]
		IRS NUMBER:				680450397
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		195 N FIRST STREET
		CITY:			DIXON
		STATE:			CA
		ZIP:			95620
		BUSINESS PHONE:		7076784422

	MAIL ADDRESS:	
		STREET 1:		195 N FIRST STREET
		CITY:			DIXON
		STATE:			CA
		ZIP:			95620
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType><periodOfReport>2003-10-15</periodOfReport>
    <issuer>
        <issuerCik>0001114927</issuerCik>
        <issuerName>FIRST NORTHERN COMMUNITY BANCORP</issuerName>
        <issuerTradingSymbol>FNRN</issuerTradingSymbol></issuer><reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001185948</rptOwnerCik>
            <rptOwnerName>WALKER ROBERT M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>195 N. FIRST STREET</rptOwnerStreet1>
            <rptOwnerStreet2>P.O. BOX 547</rptOwnerStreet2>
            <rptOwnerCity>DIXON</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>95620</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>0</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>SVP/Branch Administrator</officerTitle></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeTransaction><securityTitle><value>Common Capital</value></securityTitle><transactionDate><value>2003-10-15</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>F</transactionCode><equitySwapInvolved>0</equitySwapInvolved><footnoteId id="F1"/></transactionCoding><transactionAmounts><transactionShares><value>123</value></transactionShares><transactionPricePerShare><value>24.75</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>2981</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirec
tOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></nonDerivativeTransaction><nonDerivativeTransaction><securityTitle><value>Common Capital</value></securityTitle><transactionDate><value>2003-10-15</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>F</transactionCode><equitySwapInvolved>0</equitySwapInvolved><footnoteId id="F1"/></transactionCoding><transactionAmounts><transactionShares><value>285</value></transactionShares><transactionPricePerShare><value>10.71</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>2981</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></nonDerivativeTransaction></nonDerivativeTable><d
erivativeTable><derivativeTransaction><securityTitle><value>Common Capital (Stock Option Right to Purchase)</value></securityTitle><conversionOrExercisePrice><value>10.71</value></conversionOrExercisePrice><transactionDate><value>2003-10-15</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>F</transactionCode><equitySwapInvolved>0</equitySwapInvolved><footnoteId id="F1"/></transactionCoding><transactionAmounts><transactionShares><value>285</value></transactionShares><transactionPricePerShare><value>10.71</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>1998-03-06</value></exerciseDate><expirationDate><value>2008-03-06</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>ISO</value></underlyingSecurityTitle><underlyingSecurityShares><value>285</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sha
resOwnedFollowingTransaction><value>285</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeTransaction></derivativeTable><footnotes><footnote id="F1">CODE F = Stock options that vest 20% upon their grant and 20% annually over 4 years.  The exercise price of Stock Options is the fair market value on date of grant.  Stock Options Exercised 285 @$10.71 SWAPPED 123 shares @$24.75, paid $8.10 w/check.</footnote></footnotes><remarks/><ownerSignature><signatureName>Lynn Campbell, AVP/Corporate Secretary</signatureName><signatureDate>2003-10-15</signatureDate></ownerSignature></ownershipDocument>

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