<SEC-DOCUMENT>0001437749-20-012008-index.html : 20200529
<SEC-HEADER>0001437749-20-012008.hdr.sgml : 20200529
<ACCEPTANCE-DATETIME>20200529113856
ACCESSION NUMBER:		0001437749-20-012008
CONFORMED SUBMISSION TYPE:	SD
PUBLIC DOCUMENT COUNT:		2
<RULE>
<RULE-NAME>13p-1
<ITEM>
<ITEM-NUMBER>1.01
<ITEM-PERIOD>20191231
</ITEM>
<ITEM>
<ITEM-NUMBER>1.02
<ITEM-PERIOD>20191231
</ITEM>
</RULE>
FILED AS OF DATE:		20200529
DATE AS OF CHANGE:		20200529

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:		SD
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-53713
		FILM NUMBER:		20925292

	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>SD
<SEQUENCE>1
<FILENAME>ottr20200526_sd.htm
<DESCRIPTION>FORM SD
<TEXT>
Document 1 - file: ottr20200526_sd.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-1.01
<SEQUENCE>2
<FILENAME>ex_188098.htm
<DESCRIPTION>EXHIBIT 1.01
<TEXT>
Document 2 - file: ex_188098.htm

</DOCUMENT>
</SEC-DOCUMENT>