<SEC-DOCUMENT>0001207335-11-000021.txt : 20111121
<SEC-HEADER>0001207335-11-000021.hdr.sgml : 20111121
<ACCEPTANCE-DATETIME>20111118182835
ACCESSION NUMBER:		0001207335-11-000021
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20111117
FILED AS OF DATE:		20111118
DATE AS OF CHANGE:		20111118

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PLUMAS BANCORP
		CENTRAL INDEX KEY:			0001168455
		STANDARD INDUSTRIAL CLASSIFICATION:	SHORT-TERM BUSINESS CREDIT INSTITUTIONS [6153]
		IRS NUMBER:				752987096
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		35 S LINDEN AVENUE
		CITY:			QUINCY
		STATE:			CA
		ZIP:			95971
		BUSINESS PHONE:		5302837305

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WEST DANIEL E
		CENTRAL INDEX KEY:			0001207322

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-49883
		FILM NUMBER:		111217232

	MAIL ADDRESS:	
		STREET 1:		PO BOX 442
		CITY:			GRAEAGLE
		STATE:			CA
		ZIP:			96103
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0304</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2011-11-17</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001168455</issuerCik>
        <issuerName>PLUMAS BANCORP</issuerName>
        <issuerTradingSymbol>PLBC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001207322</rptOwnerCik>
            <rptOwnerName>WEST DANIEL E</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>PO BOX 442</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>GRAEAGLE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>96103</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2011-11-17</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2200</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>2.3</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>61810</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Various</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">23,662 shares held by Family Trust
16,794 held by Graeagle Land &amp; Water Company (Daniel E. West, president)
8,372 shares held by Children
7,125 held by self-directed IRA
5,857 held by Spouse IRA</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Daniel E. West</signatureName>
        <signatureDate>2011-11-18</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
