<SEC-DOCUMENT>0000932471-15-000166-index.html : 20150127
<SEC-HEADER>0000932471-15-000166.hdr.sgml : 20150127
<ACCEPTANCE-DATETIME>20150127064128
ACCESSION NUMBER:		0000932471-15-000166
CONFORMED SUBMISSION TYPE:	497K
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20150127
DATE AS OF CHANGE:		20150127
EFFECTIVENESS DATE:		20150127

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			VANGUARD CHESTER FUNDS
		CENTRAL INDEX KEY:			0000752177
		IRS NUMBER:				232311358
		FISCAL YEAR END:			0930

	FILING VALUES:
		FORM TYPE:		497K
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	002-92948
		FILM NUMBER:		15550260

	BUSINESS ADDRESS:	
		STREET 1:		PO BOX 2600
		STREET 2:		V26
		CITY:			VALLEY FORGE
		STATE:			PA
		ZIP:			19482
		BUSINESS PHONE:		6106691000

	MAIL ADDRESS:	
		STREET 1:		P.O. BOX 2600
		STREET 2:		V26
		CITY:			VALLEY FORGE
		STATE:			PA
		ZIP:			19482

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	VANGUARD PRIMECAP FUND/
		DATE OF NAME CHANGE:	20011121

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	VANGUARD/PRIMECAP FUND INC
		DATE OF NAME CHANGE:	19940608

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PRIMECAP FUND INC
		DATE OF NAME CHANGE:	19920703
<SERIES-AND-CLASSES-CONTRACTS-DATA>
<EXISTING-SERIES-AND-CLASSES-CONTRACTS>
<SERIES>
<OWNER-CIK>0000752177
<SERIES-ID>S000002568
<SERIES-NAME>Vanguard PRIMECAP Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000007070
<CLASS-CONTRACT-NAME>Investor Shares
<CLASS-CONTRACT-TICKER-SYMBOL>VPMCX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000007071
<CLASS-CONTRACT-NAME>Admiral Shares
<CLASS-CONTRACT-TICKER-SYMBOL>VPMAX
</CLASS-CONTRACT>
</SERIES>
</EXISTING-SERIES-AND-CLASSES-CONTRACTS>
</SERIES-AND-CLASSES-CONTRACTS-DATA>
</SEC-HEADER>
<DOCUMENT>
<TYPE>497K
<SEQUENCE>1
<FILENAME>sp59012015.htm
<DESCRIPTION>VANGUARD PRIMECAP FUND SUMMARY PROSPECTUS FOR INVESTOR SHARES & ADMIRAL SHARES
<TEXT>
Document 1 - file: sp59012015.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>sp59012015x1x1.jpg
<TEXT>
Document 3 - file: sp59012015x1x1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>sp59012015x4x1.jpg
<TEXT>
Document 4 - file: sp59012015x4x1.jpg

</DOCUMENT>
</SEC-DOCUMENT>