<SEC-DOCUMENT>0000891804-17-000431-index.html : 20170602
<SEC-HEADER>0000891804-17-000431.hdr.sgml : 20170602
<ACCEPTANCE-DATETIME>20170602111953
ACCESSION NUMBER:		0000891804-17-000431
CONFORMED SUBMISSION TYPE:	N-CSR
PUBLIC DOCUMENT COUNT:		14
CONFORMED PERIOD OF REPORT:	20170331
FILED AS OF DATE:		20170602
DATE AS OF CHANGE:		20170602
EFFECTIVENESS DATE:		20170602

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-CSR
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-06623
		FILM NUMBER:		17886799

	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-CSR
<SEQUENCE>1
<FILENAME>ncsr.htm
<DESCRIPTION>NXC
<TEXT>
Document 1 - file: ncsr.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.CERT
<SEQUENCE>2
<FILENAME>ex99cert.htm
<DESCRIPTION>CERTIFICATIONS
<TEXT>
Document 2 - file: ex99cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.906 CERT
<SEQUENCE>3
<FILENAME>ex99906cert.htm
<DESCRIPTION>CERTIFICATION
<TEXT>
Document 3 - file: ex99906cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.PROXYPOLICY
<SEQUENCE>4
<FILENAME>ex99proxypolicy.htm
<DESCRIPTION>PROXY POLICY
<TEXT>
Document 4 - file: ex99proxypolicy.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>cover.jpg
<TEXT>
Document 5 - file: cover.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>fsc.jpg
<TEXT>
Document 6 - file: fsc.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>logo.jpg
<TEXT>
Document 7 - file: logo.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>nxc.jpg
<TEXT>
Document 8 - file: nxc.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>nxn.jpg
<TEXT>
Document 9 - file: nxn.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>nxp.jpg
<TEXT>
Document 10 - file: nxp.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>nxq.jpg
<TEXT>
Document 11 - file: nxq.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>nxr.jpg
<TEXT>
Document 12 - file: nxr.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>sign.jpg
<TEXT>
Document 13 - file: sign.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>william.jpg
<TEXT>
Document 14 - file: william.jpg

</DOCUMENT>
</SEC-DOCUMENT>