-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 GpibzIiHKwXZcSf8X/IQJokPetj7/0Mib1smjpd9nY5SEXhSINdK8Zv/NjT5+caY
 b2hjx1SCyP/dItlS2uzmEg==

<SEC-DOCUMENT>0001209191-07-053413.txt : 20070914
<SEC-HEADER>0001209191-07-053413.hdr.sgml : 20070914
<ACCEPTANCE-DATETIME>20070914121309
ACCESSION NUMBER:		0001209191-07-053413
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20070913
FILED AS OF DATE:		20070914
DATE AS OF CHANGE:		20070914

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Schad Timothy O
		CENTRAL INDEX KEY:			0001412205

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-26719
		FILM NUMBER:		071117031

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		616 745 4338

	MAIL ADDRESS:	
		STREET 1:		2609 FREDERICK SE
		CITY:			GRAND RAPIDS
		STATE:			MI
		ZIP:			49506

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MERCANTILE BANK CORP
		CENTRAL INDEX KEY:			0001042729
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				383360865
		STATE OF INCORPORATION:			MI
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		5650 BYRON CENTER AVENUE S. W.
		CITY:			WYOMING
		STATE:			MI
		ZIP:			49509
		BUSINESS PHONE:		616 406-3777

	MAIL ADDRESS:	
		STREET 1:		5650 BYRON CENTER AVENUE S. W.
		CITY:			WYOMING
		STATE:			MI
		ZIP:			49509
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>doc3.xml
<DESCRIPTION>FORM 3 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2007-09-13</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001042729</issuerCik>
        <issuerName>MERCANTILE BANK CORP</issuerName>
        <issuerTradingSymbol>MBWM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001412205</rptOwnerCik>
            <rptOwnerName>Schad Timothy O</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2609 FREDERICK SE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>GRAND RAPIDS</rptOwnerCity>
            <rptOwnerState>MI</rptOwnerState>
            <rptOwnerZipCode>49506</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Jerome M. Schwartz
Attorney-in-fact</signatureName>
        <signatureDate>2007-09-13</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24.3_203903
<SEQUENCE>2
<FILENAME>poa.txt
<DESCRIPTION>POA DOCUMENT
<TEXT>
POWER OF ATTORNEY

	Know all by these presents, that the undersigned hereby constitutes and
appoints each of Jerome M. Schwartz, John K. Lawrence, Cynthia A. Moore,
Christopher C. Maeso and John M. Perkins, signing singly, the undersigned's true
and lawful attorney-in-fact to:

(1)	execute for and on behalf of the undersigned, in the undersigned's capacity
as an officer and/or director of Mercantile Bank Corporation (the "Company"),
Forms 3, 4, and 5 in accordance with Section 16(a) of the Securities Exchange
Act of 1934 and the rules thereunder; and Form ID, adopted by the Securities and
Exchange Commission.

(2)	do and perform any and all acts for and on behalf of the undersigned which
may be necessary or desirable to complete and execute any such Form 3, 4, or 5,
or Form ID, and timely file such form with the United States Securities and
Exchange Commission and any stock exchange, stock market or similar authority;
and

(3)	take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorney-in-fact, may be of benefit to,
in the best interest of, or legally required by, the undersigned, it being
understood that the documents executed by such attorney-in-fact on behalf of the
undersigned pursuant to this Power of Attorney shall be in such form and shall
contain such terms and conditions as such attorney-in-fact may approve in such
attorney-in-fact's discretion.

	The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary, or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might or
could do if personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that such attorney-in-fact, or such
attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be
done by virtue of this power of attorney and the rights and powers herein
granted.  The undersigned acknowledges that the foregoing attorneys-in-fact, in
serving in such capacity at the request of the undersigned, are not assuming,
nor is the Company assuming, any of the undersigned's responsibilities to comply
with Section 16 of the Securities Exchange Act of 1934.

	This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4, and 5 with respect to the
undersigned's holdings of and transactions in securities issued by the Company,
unless earlier revoked by the undersigned in a signed writing delivered to the
foregoing attorneys-in-fact.

	IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 13th day of September, 2007.


					/s/ Timothy O. Schad
					Timothy O. Schad

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