<SEC-DOCUMENT>0001193125-16-657880-index.html : 20160726
<SEC-HEADER>0001193125-16-657880.hdr.sgml : 20160726
<ACCEPTANCE-DATETIME>20160726134405
ACCESSION NUMBER:		0001193125-16-657880
CONFORMED SUBMISSION TYPE:	N-CSRS
PUBLIC DOCUMENT COUNT:		9
CONFORMED PERIOD OF REPORT:	20160531
FILED AS OF DATE:		20160726
DATE AS OF CHANGE:		20160726
EFFECTIVENESS DATE:		20160726

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MFS CALIFORNIA MUNICIPAL FUND
		CENTRAL INDEX KEY:			0001092896
		IRS NUMBER:				043483817
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1130

	FILING VALUES:
		FORM TYPE:		N-CSRS
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-09537
		FILM NUMBER:		161783950

	BUSINESS ADDRESS:	
		STREET 1:		111 HUNTINGTON AVENUE
		STREET 2:		24TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199
		BUSINESS PHONE:		6179545000

	MAIL ADDRESS:	
		STREET 1:		111 HUNTINGTON AVENUE
		STREET 2:		24TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MFS CALIFORNIA INSURED MUNICIPAL FUND
		DATE OF NAME CHANGE:	20070629

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COLONIAL CALIFORNIA INSURED MUNICIPAL FUND
		DATE OF NAME CHANGE:	19990927

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PREMIER CALIFORNIA MUNICIPAL INCOME FUND
		DATE OF NAME CHANGE:	19990809
</SEC-HEADER>
<DOCUMENT>
<TYPE>N-CSRS
<SEQUENCE>1
<FILENAME>d170913dncsrs.htm
<DESCRIPTION>MFS CALIFORNIA MUNICIPAL FUND N-CSRS
<TEXT>
Document 1 - file: d170913dncsrs.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.CERT
<SEQUENCE>2
<FILENAME>d170913dex99cert.htm
<DESCRIPTION>SECTION 302 CERTIFICATIONS
<TEXT>
Document 2 - file: d170913dex99cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.906CERT
<SEQUENCE>3
<FILENAME>d170913dex99906cert.htm
<DESCRIPTION>SECTION 906 CERTIFICATIONS
<TEXT>
Document 3 - file: d170913dex99906cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g170913art_03.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g170913art_03.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g170913ernst_youngllp.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g170913ernst_youngllp.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g170913g69v38.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g170913g69v38.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g170913logo_05.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g170913logo_05.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>g170913manning_photo.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: g170913manning_photo.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>g170913manning_sig.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: g170913manning_sig.jpg

</DOCUMENT>
</SEC-DOCUMENT>