    <SEC-DOCUMENT>0000352541-17-000043-index.html : 20170418
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    <ACCEPTANCE-DATETIME>20170417183143
    ACCESSION NUMBER:		0000352541-17-000043
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		27
    CONFORMED PERIOD OF REPORT:	20170523
    FILED AS OF DATE:		20170418
    DATE AS OF CHANGE:		20170417
    EFFECTIVENESS DATE:		20170418

    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

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    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-09894
    		FILM NUMBER:		17765591

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

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

    	FORMER COMPANY:
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    		DATE OF NAME CHANGE:	19980427

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	WPL HOLDINGS INC
    		DATE OF NAME CHANGE:	19920703
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    <DOCUMENT>
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    <FILENAME>lnt2017def14a.htm
    <DESCRIPTION>DEF 14A
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    Document 1 - file: lnt2017def14a.htm

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    <FILENAME>lnt2017def14a_aeclogo.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: lnt2017def14a_aeclogo.jpg

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    <FILENAME>lnt2017def14a_allen.jpg
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    Document 3 - file: lnt2017def14a_allen.jpg

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    Document 4 - file: lnt2017def14a_bennett.jpg

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    <FILENAME>lnt2017def14a_bodsnapshot.jpg
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    Document 5 - file: lnt2017def14a_bodsnapshot.jpg

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    <FILENAME>lnt2017def14a_ceotargetpay.jpg
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    Document 6 - file: lnt2017def14a_ceotargetpay.jpg

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    <FILENAME>lnt2017def14a_dunie.jpg
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    Document 7 - file: lnt2017def14a_dunie.jpg

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    <FILENAME>lnt2017def14a_executivecomp.jpg
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    Document 8 - file: lnt2017def14a_executivecomp.jpg

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    Document 9 - file: lnt2017def14a_gallegos.jpg

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    Document 11 - file: lnt2017def14a_internet.jpg

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    Document 12 - file: lnt2017def14a_kampling.jpg

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    Document 13 - file: lnt2017def14a_mail.jpg

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    Document 14 - file: lnt2017def14a_mcallister.jpg

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    <FILENAME>lnt2017def14a_neotargetpay.jpg
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    Document 15 - file: lnt2017def14a_neotargetpay.jpg

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    Document 16 - file: lnt2017def14a_oestreich.jpg

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    <FILENAME>lnt2017def14a_otoole.jpg
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    Document 17 - file: lnt2017def14a_otoole.jpg

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    Document 18 - file: lnt2017def14a_performance.jpg

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    Document 19 - file: lnt2017def14a_phone.jpg

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    <FILENAME>lnt2017def14a_plkampling.jpg
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    Document 20 - file: lnt2017def14a_plkampling.jpg

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    Document 21 - file: lnt2017def14a_proxybackcover.jpg

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    Document 22 - file: lnt2017def14a_proxycard.jpg

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    Document 23 - file: lnt2017def14a_proxycover.jpg

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    <FILENAME>lnt2017def14a_proxyvoting.jpg
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    Document 24 - file: lnt2017def14a_proxyvoting.jpg

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    <SEQUENCE>25
    <FILENAME>lnt2017def14a_sanders.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 25 - file: lnt2017def14a_sanders.jpg

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    <FILENAME>lnt2017def14a_tsrbarcharts.jpg
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    <TEXT>
    Document 26 - file: lnt2017def14a_tsrbarcharts.jpg

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    <FILENAME>lnt2017def14a_whiting.jpg
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    <TEXT>
    Document 27 - file: lnt2017def14a_whiting.jpg

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