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    ACCESSION NUMBER:		0000352541-21-000043
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		28
    CONFORMED PERIOD OF REPORT:	20210520
    FILED AS OF DATE:		20210401
    DATE AS OF CHANGE:		20210401

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			ALLIANT ENERGY CORP
    		CENTRAL INDEX KEY:			0000352541
    		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC & OTHER SERVICES COMBINED [4931]
    		IRS NUMBER:				391380265
    		STATE OF INCORPORATION:			WI
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-09894
    		FILM NUMBER:		21795935

    	BUSINESS ADDRESS:
    		STREET 1:		4902 NORTH BILTMORE LANE
    		STREET 2:		SUITE 1000
    		CITY:			MADISON
    		STATE:			WI
    		ZIP:			53718-2148
    		BUSINESS PHONE:		608-458-3311

    	MAIL ADDRESS:
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    		STREET 2:		SUITE 1000
    		CITY:			MADISON
    		STATE:			WI
    		ZIP:			53718-2148

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	INTERSTATE ENERGY CORP
    		DATE OF NAME CHANGE:	19980427

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	WPL HOLDINGS INC
    		DATE OF NAME CHANGE:	19920703
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