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<ACCEPTANCE-DATETIME>20180822094641
ACCESSION NUMBER:		0001206774-18-002572
CONFORMED SUBMISSION TYPE:	N-CSRS
PUBLIC DOCUMENT COUNT:		59
CONFORMED PERIOD OF REPORT:	20180630
FILED AS OF DATE:		20180822
DATE AS OF CHANGE:		20180822
EFFECTIVENESS DATE:		20180822

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			T. Rowe Price Index Trust, Inc.
		CENTRAL INDEX KEY:			0000858581
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		N-CSRS
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-05986
		FILM NUMBER:		181031601

	BUSINESS ADDRESS:	
		STREET 1:		100 EAST PRATT STREET
		CITY:			BALTIMORE
		STATE:			MD
		ZIP:			21202
		BUSINESS PHONE:		410-345-2000

	MAIL ADDRESS:	
		STREET 1:		100 EAST PRATT STREET
		CITY:			BALTIMORE
		STATE:			MD
		ZIP:			21202

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PRICE T ROWE INDEX TRUST INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PRICE T ROWE INSTITUTIONAL EQUITY FUNDS INC
		DATE OF NAME CHANGE:	19900227
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