<SEC-DOCUMENT>0001209191-15-008415-index.html : 20150202
<SEC-HEADER>0001209191-15-008415.hdr.sgml : 20150202
<ACCEPTANCE-DATETIME>20150202185511
ACCESSION NUMBER:		0001209191-15-008415
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20150123
FILED AS OF DATE:		20150202
DATE AS OF CHANGE:		20150202

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			COLUMBIA BANKING SYSTEM INC
		CENTRAL INDEX KEY:			0000887343
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				911422237
		STATE OF INCORPORATION:			WA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1301 A STREET
		CITY:			TACOMA
		STATE:			WA
		ZIP:			98402
		BUSINESS PHONE:		2533051900

	MAIL ADDRESS:	
		STREET 1:		1301 A STREET
		CITY:			TACOMA
		STATE:			WA
		ZIP:			98402

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Ray Barry
		CENTRAL INDEX KEY:			0001632460

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-20288
		FILM NUMBER:		15568777

	MAIL ADDRESS:	
		STREET 1:		1301 A STREET
		CITY:			TACOMA
		STATE:			WA
		ZIP:			98402
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>doc3.xml
<DESCRIPTION>FORM 3 SUBMISSION
<TEXT>
Document 1 - file: doc3.html

Document 1 - RAW XML: doc3.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>attachment1.htm
<DESCRIPTION>EX-24 DOCUMENT
<TEXT>
Document 2 - file: attachment1.htm

</DOCUMENT>
</SEC-DOCUMENT>