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    PUBLIC DOCUMENT COUNT:		21
    CONFORMED PERIOD OF REPORT:	20210604
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Financial Statements and Exhibits
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    DATE AS OF CHANGE:		20210604

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    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			PACKAGING CORP OF AMERICA
    		CENTRAL INDEX KEY:			0000075677
    		STANDARD INDUSTRIAL CLASSIFICATION:	PAPERBOARD CONTAINERS & BOXES [2650]
    		IRS NUMBER:				364277050
    		FISCAL YEAR END:			1231

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    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-15399
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    	BUSINESS ADDRESS:
    		STREET 1:		1955 W FIELD CT
    		CITY:			LAKE FOREST
    		STATE:			IL
    		ZIP:			60045
    		BUSINESS PHONE:		8474823000

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    		STREET 1:		1955 W FIELD CT
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