-----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,
 KcQtqmbNwDXopb3dfZpZTp251LXdtBd/2lVMD5L75YXtvQ66LIekFwzy6z9LSqLL
 wP+dG0+FQyDS4ThiL2YoAg==

<SEC-DOCUMENT>0001295548-07-000056.txt : 20070703
<SEC-HEADER>0001295548-07-000056.hdr.sgml : 20070703
<ACCEPTANCE-DATETIME>20070703112602
ACCESSION NUMBER:		0001295548-07-000056
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20070629
FILED AS OF DATE:		20070703
DATE AS OF CHANGE:		20070703

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MFS INVESTMENT GRADE MUNICIPAL TRUST
		CENTRAL INDEX KEY:			0000847411
		IRS NUMBER:				043046360
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1130

	BUSINESS ADDRESS:	
		STREET 1:		500 BOYLSTON ST
		STREET 2:		20TH FL LEGAL DEPT
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
		BUSINESS PHONE:		6179545000

	MAIL ADDRESS:	
		STREET 1:		500 BOYLSTON ST
		STREET 2:		20TH FL LEGAL DEPT.
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COLONIAL INVESTMENT GRADE MUNICIPAL TRUST
		DATE OF NAME CHANGE:	19920703

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MOYNIHAN ELLEN
		CENTRAL INDEX KEY:			0001244371

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-05785
		FILM NUMBER:		07958387

	MAIL ADDRESS:	
		STREET 1:		MFS INVESTMENT MANAGEMENT
		STREET 2:		500 BOYLSTON STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2007-06-29</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000847411</issuerCik>
        <issuerName>MFS INVESTMENT GRADE MUNICIPAL TRUST</issuerName>
        <issuerTradingSymbol>CXH</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001244371</rptOwnerCik>
            <rptOwnerName>MOYNIHAN ELLEN</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>MFS INVESTMENT MANAGEMENT</rptOwnerStreet1>
            <rptOwnerStreet2>500 BOYLSTON STREET</rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02116</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Assistant Treasurer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <ownerSignature>
        <signatureName>Susan S. Newton, By Power of Attorney</signatureName>
        <signatureDate>2007-07-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>2
<FILENAME>poamoynihan.txt
<DESCRIPTION>POWER OF ATTORNEY
<TEXT>
                                POWER OF ATTORNEY



The  undersigned  on his or her own behalf  and on behalf of his or her  estate,
heirs and assigns hereby  constitutes and appoints Susan S. Newton,  Christopher
R. Bohane,  Timothy M. Fagan,  Susan A. Pereira and Brian E. Langenfeld and each
of them singly as true and lawful  attorneys with full power to them and each of
them, to execute,  on behalf of the  undersigned,  in the capacity listed below,
any and all  statements or reports under Section 16 of the  Securities  Exchange
Act of 1934, as amended,  with respect to the beneficial ownership of reportable
securities  issued by MFS  California  Insured  Municipal  Fund, MFS High Income
Municipal  Trust, MFS InterMarket  Income Trust I, MFS Intermediate  High Income
Fund, MFS Investment  Grade  Municipal  Trust and MFS High Yield Municipal Trust
including, without limitation, all initial statements of beneficial ownership on
Form 3, all  statements  of changes of  beneficial  ownership  on Form 4 and all
annual  statements  of  beneficial  ownership  on Form 5, and any and all  other
documents  that  may be  required,  from  time to  time,  to be  filed  with the
Securities  and  Exchange  Commission,  to  execute  any and all  amendments  or
supplements  to any such  statements  or forms,  and to file the same,  with all
exhibits  thereto,  and  other  documents  in  connection  therewith,  with  the
Securities and Exchange  Commission,  granting to said attorney,  full power and
authority  to do so and  perform  each and  every act and  thing  requisite  and
necessary  to be done in and about the  premises,  as fully to all  intents  and
purposes as the undersigned  (or his or her estate,  heirs and assigns) might or
could do in person,  hereby  ratifying and confirming all that said attorneys or
any of them may lawfully do or cause to be done by virtue hereof.

IN WITNESS WHEREOF,  the undersigned has set his or her hand on this 20th day of
June, 2007.



ELLEN M. MOYNIHAN
Ellen M. Moynihan
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----
