<SEC-DOCUMENT>0001821268-22-000315-index.html : 20221104
<SEC-HEADER>0001821268-22-000315.hdr.sgml : 20221104
<ACCEPTANCE-DATETIME>20221104150022
ACCESSION NUMBER:		0001821268-22-000315
CONFORMED SUBMISSION TYPE:	N-CSRS
PUBLIC DOCUMENT COUNT:		13
CONFORMED PERIOD OF REPORT:	20220831
FILED AS OF DATE:		20221104
DATE AS OF CHANGE:		20221104
EFFECTIVENESS DATE:		20221104

FILER:

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

	FILING VALUES:
		FORM TYPE:		N-CSRS
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-06623
		FILM NUMBER:		221361981

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>N-CSRS
<SEQUENCE>1
<FILENAME>nxc.htm
<DESCRIPTION>NXC
<TEXT>
Document 1 - file: nxc.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.CERT
<SEQUENCE>2
<FILENAME>nxc_ex99cert.htm
<DESCRIPTION>CERTIFICATIONS
<TEXT>
Document 2 - file: nxc_ex99cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.906 CERT
<SEQUENCE>3
<FILENAME>nxc_ex99cert906.htm
<DESCRIPTION>CERTIFICATION
<TEXT>
Document 3 - file: nxc_ex99cert906.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>nacx1x1.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: nacx1x1.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>nacx2x1.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: nacx2x1.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>nacx4x1.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: nacx4x1.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>nacx4x2.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: nacx4x2.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>nacx10x1.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: nacx10x1.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>nacx12x1.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: nacx12x1.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>nacx14x1.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: nacx14x1.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>nacx16x1.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 11 - file: nacx16x1.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>nacx96x1.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 12 - file: nacx96x1.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>nacx96x2.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 13 - file: nacx96x2.gif

</DOCUMENT>
</SEC-DOCUMENT>