<SEC-DOCUMENT>0000842517-21-000073-index.html : 20210326
<SEC-HEADER>0000842517-21-000073.hdr.sgml : 20210326
<ACCEPTANCE-DATETIME>20210326085755
ACCESSION NUMBER:		0000842517-21-000073
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		7
CONFORMED PERIOD OF REPORT:	20210504
FILED AS OF DATE:		20210326
DATE AS OF CHANGE:		20210326

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ISABELLA BANK Corp
		CENTRAL INDEX KEY:			0000842517
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				382830092
		STATE OF INCORPORATION:			MI
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-18415
		FILM NUMBER:		21774887

	BUSINESS ADDRESS:	
		STREET 1:		401 NORTH MAIN STREET
		CITY:			MT PLEASANT
		STATE:			MI
		ZIP:			48858
		BUSINESS PHONE:		9897729471

	MAIL ADDRESS:	
		STREET 1:		401 NORTH MAIN STREET
		CITY:			MT PLEASANT
		STATE:			MI
		ZIP:			48858

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ISABELLA BANK CORP
		DATE OF NAME CHANGE:	20080602

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	IBT BANCORP INC /MI/
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEF 14A
<SEQUENCE>1
<FILENAME>isba_2021xdef14a.htm
<DESCRIPTION>DEF 14A
<TEXT>
Document 1 - file: isba_2021xdef14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>ibclogoa041a.jpg
<DESCRIPTION>ISBA LOGO
<TEXT>
Document 2 - file: ibclogoa041a.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>debracampbella041a.jpg
<DESCRIPTION>SIGNATURE
<TEXT>
Document 3 - file: debracampbella041a.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>proxycovervotea041a.jpg
<DESCRIPTION>VOTING
<TEXT>
Document 4 - file: proxycovervotea041a.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>proxycard11.jpg
<DESCRIPTION>PROXY CARD
<TEXT>
Document 5 - file: proxycard11.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>proxycard21.jpg
<DESCRIPTION>PROXY CARD
<TEXT>
Document 6 - file: proxycard21.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>proxycard1.jpg
<DESCRIPTION>PROXY CARD
<TEXT>
Document 7 - file: proxycard1.jpg

</DOCUMENT>
</SEC-DOCUMENT>