    <SEC-DOCUMENT>0000066756-25-000045-index.html : 20250331
    <SEC-HEADER>0000066756-25-000045.hdr.sgml : 20250331
    <ACCEPTANCE-DATETIME>20250331163902
    ACCESSION NUMBER:		0000066756-25-000045
    CONFORMED SUBMISSION TYPE:	ARS
    PUBLIC DOCUMENT COUNT:		1
    CONFORMED PERIOD OF REPORT:	20241231
    FILED AS OF DATE:		20250331
    DATE AS OF CHANGE:		20250331
    EFFECTIVENESS DATE:		20250331

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			ALLETE INC
    		CENTRAL INDEX KEY:			0000066756
    		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC & OTHER SERVICES COMBINED [4931]
    		ORGANIZATION NAME:           	01 Energy & Transportation
    		EIN:				410418150
    		STATE OF INCORPORATION:			MN
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		ARS
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-03548
    		FILM NUMBER:		25794035

    	BUSINESS ADDRESS:
    		STREET 1:		30 W SUPERIOR ST
    		CITY:			DULUTH
    		STATE:			MN
    		ZIP:			55802-2093
    		BUSINESS PHONE:		2182795000

    	MAIL ADDRESS:
    		STREET 1:		30 W SUPERIOR STREET
    		CITY:			DULUTH
    		STATE:			MN
    		ZIP:			55802-2093

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	ALLETE
    		DATE OF NAME CHANGE:	20000901

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	MINNESOTA POWER INC
    		DATE OF NAME CHANGE:	19980603

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	MINNESOTA POWER & LIGHT CO
    		DATE OF NAME CHANGE:	19920703
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>ARS
    <SEQUENCE>1
    <FILENAME>allete2025annualreport.pdf
    <DESCRIPTION>ARS
    <TEXT>
    Document 1 - file: allete2025annualreport.pdf

    </DOCUMENT>
    </SEC-DOCUMENT>