<SEC-DOCUMENT>0000912938-17-000450-index.html : 20170727
<SEC-HEADER>0000912938-17-000450.hdr.sgml : 20170727
<ACCEPTANCE-DATETIME>20170727121329
ACCESSION NUMBER:		0000912938-17-000450
CONFORMED SUBMISSION TYPE:	NSAR-A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170531
FILED AS OF DATE:		20170727
DATE AS OF CHANGE:		20170727
EFFECTIVENESS DATE:		20170727

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:		NSAR-A
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-09537
		FILM NUMBER:		17985248

	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>NSAR-A
<SEQUENCE>1
<FILENAME>answer.fil
<TEXT>
Document 1 - file: answer.fil

</DOCUMENT>
</SEC-DOCUMENT>