    <SEC-DOCUMENT>0000355811-20-000012-index.html : 20200406
    <SEC-HEADER>0000355811-20-000012.hdr.sgml : 20200406
    <ACCEPTANCE-DATETIME>20200406085039
    ACCESSION NUMBER:		0000355811-20-000012
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		11
    CONFORMED PERIOD OF REPORT:	20200521
    FILED AS OF DATE:		20200406
    DATE AS OF CHANGE:		20200406
    EFFECTIVENESS DATE:		20200406

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			GENTEX CORP
    		CENTRAL INDEX KEY:			0000355811
    		STANDARD INDUSTRIAL CLASSIFICATION:	MOTOR VEHICLE PARTS & ACCESSORIES [3714]
    		IRS NUMBER:				382030505
    		STATE OF INCORPORATION:			MI
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-10235
    		FILM NUMBER:		20775860

    	BUSINESS ADDRESS:
    		STREET 1:		600 N CENTENNIAL ST
    		CITY:			ZEELAND
    		STATE:			MI
    		ZIP:			49464
    		BUSINESS PHONE:		6167721800

    	MAIL ADDRESS:
    		STREET 1:		600 N CENTENNIAL STREET
    		CITY:			ZEELAND
    		STATE:			MI
    		ZIP:			49464
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEF 14A
    <SEQUENCE>1
    <FILENAME>gentexproxystatement2020.htm
    <DESCRIPTION>DEF 14A
    <TEXT>
    Document 1 - file: gentexproxystatement2020.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>a2019proxycard.htm
    <DESCRIPTION>EX-99.1
    <TEXT>
    Document 2 - file: a2019proxycard.htm

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>chart-236263fa96d643db8681.jpg
    <TEXT>
    Document 3 - file: chart-236263fa96d643db8681.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>chart-6ff1404c306e43aeb571.jpg
    <TEXT>
    Document 4 - file: chart-6ff1404c306e43aeb571.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>gentex-black1.jpg
    <TEXT>
    Document 5 - file: gentex-black1.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>gentex-black2.jpg
    <TEXT>
    Document 6 - file: gentex-black2.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>gentexproxyimage3a041.gif
    <TEXT>
    Document 7 - file: gentexproxyimage3a041.gif

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>proxycard2019-pg11.jpg
    <TEXT>
    Document 8 - file: proxycard2019-pg11.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>proxycard2019-pg21.jpg
    <TEXT>
    Document 9 - file: proxycard2019-pg21.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>sprsignaturea091.jpg
    <TEXT>
    Document 10 - file: sprsignaturea091.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>sprsignaturea101.jpg
    <TEXT>
    Document 11 - file: sprsignaturea101.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>