<SEC-DOCUMENT>0001466593-21-000030-index.html : 20210503
<SEC-HEADER>0001466593-21-000030.hdr.sgml : 20210503
<ACCEPTANCE-DATETIME>20210503151445
ACCESSION NUMBER:		0001466593-21-000030
CONFORMED SUBMISSION TYPE:	S-3ASR
PUBLIC DOCUMENT COUNT:		6
FILED AS OF DATE:		20210503
DATE AS OF CHANGE:		20210503
EFFECTIVENESS DATE:		20210503

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Otter Tail Corp
		CENTRAL INDEX KEY:			0001466593
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC SERVICES [4911]
		IRS NUMBER:				270383995
		STATE OF INCORPORATION:			MN
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-3ASR
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-255714
		FILM NUMBER:		21883172

	BUSINESS ADDRESS:	
		STREET 1:		215 S CASCADE ST
		STREET 2:		PO BOX 496
		CITY:			FERGUS FALLS
		STATE:			MN
		ZIP:			56538-0496
		BUSINESS PHONE:		866-410-8780

	MAIL ADDRESS:	
		STREET 1:		215 S CASCADE ST
		STREET 2:		PO BOX 496
		CITY:			FERGUS FALLS
		STATE:			MN
		ZIP:			56538-0496

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Otter Tail Holding Co
		DATE OF NAME CHANGE:	20090618
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-3ASR
<SEQUENCE>1
<FILENAME>a2021s-3dividendreinvestme.htm
<DESCRIPTION>S-3
<TEXT>
Document 1 - file: a2021s-3dividendreinvestme.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>a2021s-3dripexhibit51.htm
<DESCRIPTION>EX-5.1
<TEXT>
Document 2 - file: a2021s-3dripexhibit51.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>3
<FILENAME>a2021s-3dripexhibit231.htm
<DESCRIPTION>EX-23.1
<TEXT>
Document 3 - file: a2021s-3dripexhibit231.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24.1
<SEQUENCE>4
<FILENAME>a2021s-3dripexhibit241.htm
<DESCRIPTION>EX-24.1
<TEXT>
Document 4 - file: a2021s-3dripexhibit241.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>image_381a.jpg
<TEXT>
Document 5 - file: image_381a.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>image_61a.jpg
<TEXT>
Document 6 - file: image_61a.jpg

</DOCUMENT>
</SEC-DOCUMENT>