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<ACCEPTANCE-DATETIME>20240503104414
ACCESSION NUMBER:		0001193125-24-130254
CONFORMED SUBMISSION TYPE:	N-CSR
PUBLIC DOCUMENT COUNT:		30
CONFORMED PERIOD OF REPORT:	20240229
FILED AS OF DATE:		20240503
DATE AS OF CHANGE:		20240503
EFFECTIVENESS DATE:		20240503

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NUVEEN CALIFORNIA SELECT TAX FREE INCOME PORTFOLIO
		CENTRAL INDEX KEY:			0000885732
		ORGANIZATION NAME:           	
		IRS NUMBER:				363828111
		STATE OF INCORPORATION:			MA

	FILING VALUES:
		FORM TYPE:		N-CSR
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-06623
		FILM NUMBER:		24911380

	BUSINESS ADDRESS:	
		STREET 1:		333 W WACKER DR
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		3129178200

	MAIL ADDRESS:	
		STREET 1:		333 W WACKER DRIVE
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NUVEEN INSURED CALIFORNIA SELECT TAX FREE INCOME PORTFOLIO
		DATE OF NAME CHANGE:	19920929

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NUVEEN CALIFORNIA SELECT TAX FREE INCOME PORTFOLIO
		DATE OF NAME CHANGE:	19600201
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<FILENAME>d804833dncsr.htm
<DESCRIPTION>NUVEEN CALIFORNIA SELECT TAX FREE INCOME PORTFOLIO
<TEXT>
Document 1 - file: d804833dncsr.htm

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<TYPE>EX-99.CERT
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<FILENAME>d804833dex99cert.htm
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