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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0000702325-04-000155.txt : 20041018
<SEC-HEADER>0000702325-04-000155.hdr.sgml : 20041018
<ACCEPTANCE-DATETIME>20041018150604
ACCESSION NUMBER:		0000702325-04-000155
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20041015
FILED AS OF DATE:		20041018
DATE AS OF CHANGE:		20041018

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BRUNNER VERNON A
		CENTRAL INDEX KEY:			0001199253

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-10967
		FILM NUMBER:		041083063

	MAIL ADDRESS:	
		STREET 1:		300 PARK BLVD
		STREET 2:		SUITE 405
		CITY:			ITASCA
		STATE:			IL
		ZIP:			60143

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FIRST MIDWEST BANCORP INC
		CENTRAL INDEX KEY:			0000702325
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		IRS NUMBER:				363161078
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		300 PARK BLVD SUITE 405
		STREET 2:		P O BOX 459
		CITY:			ITASCA
		STATE:			IL
		ZIP:			60143-0459
		BUSINESS PHONE:		7088757450

	MAIL ADDRESS:	
		STREET 1:		300 PARK BLVD SUITE 405
		STREET 2:		P O BOOX 459
		CITY:			ITASCA
		STATE:			IL
		ZIP:			60143-0459
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>bru241.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2004-10-15</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000702325</issuerCik>
        <issuerName>FIRST MIDWEST BANCORP INC</issuerName>
        <issuerTradingSymbol>FMBI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001199253</rptOwnerCik>
            <rptOwnerName>BRUNNER VERNON A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>300 PARK BOULEVARD, SUITE 405</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ITASCA</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60143</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Phantom Stock under NQ Deferred Comp. Plan</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.0000</value>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2004-10-15</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>259</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>34.6772</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F3"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F4"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>259</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>6566</value>
                    <footnoteId id="F5"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Shares of phantom stock in the NQ Deferred Compensation Plan have a 1-for-1 conversion ratio.</footnote>
        <footnote id="F2">Between July 16, 2004 and October 18, 2004 the reporting person acquired 259 shares of First Midwest common stock under the First Midwest Bancorp, Inc Non-Qualified Deferred Compensation Plan.  The information in this report is based on a plan statement dated October 15, 2004.</footnote>
        <footnote id="F3">Shares of phantom stock in the NQ Deferred Compensation Plan are exercisable immediately.</footnote>
        <footnote id="F4">Shares of phantom stock in the NQ Deferred Compensation Plan are payable in cash following the termination of the reporting person's services as a director of First Midwest Bancorp, Inc.</footnote>
        <footnote id="F5">Between July 17, 2004 and October 18, 2004 the reporting person acquired 37 shares of First Midwest common stock pursuant to the dividend reinvestment feature under the First Midwest Bancorp, Inc. Non-Qualified Deferred Compensation Plan.  The information in this report is based on a plan statement dated July 20, 2004.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>By: Andrea L. Stangl, Attorney-in-fact for</signatureName>
        <signatureDate>2004-10-18</signatureDate>
    </ownerSignature>
</ownershipDocument>

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