<SEC-DOCUMENT>0001104659-22-039472-index.html : 20220329
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<ACCEPTANCE-DATETIME>20220329162841
ACCESSION NUMBER:		0001104659-22-039472
CONFORMED SUBMISSION TYPE:	DEF 14C
PUBLIC DOCUMENT COUNT:		12
CONFORMED PERIOD OF REPORT:	20220512
FILED AS OF DATE:		20220329
DATE AS OF CHANGE:		20220329

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Ameren Illinois Co
		CENTRAL INDEX KEY:			0000018654
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC & OTHER SERVICES COMBINED [4931]
		IRS NUMBER:				370211380
		STATE OF INCORPORATION:			IL
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEF 14C
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-03672
		FILM NUMBER:		22781269

	BUSINESS ADDRESS:	
		STREET 1:		10 EXECUTIVE DRIVE
		CITY:			COLLINSVILLE
		STATE:			IL
		ZIP:			62234
		BUSINESS PHONE:		618-343-8150

	MAIL ADDRESS:	
		STREET 1:		10 EXECUTIVE DRIVE
		CITY:			COLLINSVILLE
		STATE:			IL
		ZIP:			62234

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CENTRAL ILLINOIS PUBLIC SERVICE CO
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
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<TYPE>DEF 14C
<SEQUENCE>1
<FILENAME>tm224574-1_def14c.htm
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Document 1 - file: tm224574-1_def14c.htm

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Document 2 - file: lg_amerenillinois-4c.jpg

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Document 3 - file: sg_chondajnwamu-bw.jpg

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Document 4 - file: tm216176d1-icon_tick4c.jpg

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Document 5 - file: tm216176d1-icon_crossbw.jpg

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Document 6 - file: tm224574d1-fc_compens4c.jpg

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Document 7 - file: tm216254d2-pc_fixed4c.jpg

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<TEXT>
Document 8 - file: tm224574d1-pc_cash4c.jpg

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Document 9 - file: tm224574d1-fc_stipwork4c.jpg

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Document 10 - file: tm224574d1-ph_perform4clr.jpg

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Document 11 - file: tm224574d1-fc_annual4c.jpg

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Document 12 - file: tm216254d2-icon_arrow4c.jpg

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