    <SEC-DOCUMENT>0000939057-18-000302-index.html : 20180523
    <SEC-HEADER>0000939057-18-000302.hdr.sgml : 20180523
    <ACCEPTANCE-DATETIME>20180523094028
    ACCESSION NUMBER:		0000939057-18-000302
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		12
    CONFORMED PERIOD OF REPORT:	20180522
    ITEM INFORMATION:		Other Events
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20180523
    DATE AS OF CHANGE:		20180523

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			TIMBERLAND BANCORP INC
    		CENTRAL INDEX KEY:			0001046050
    		STANDARD INDUSTRIAL CLASSIFICATION:	SAVINGS INSTITUTIONS, NOT FEDERALLY CHARTERED [6036]
    		IRS NUMBER:				911863696
    		STATE OF INCORPORATION:			WA
    		FISCAL YEAR END:			0930

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-23333
    		FILM NUMBER:		18854195

    	BUSINESS ADDRESS:
    		STREET 1:		624 SIMPSON AVE
    		CITY:			HOQUIAM
    		STATE:			WA
    		ZIP:			98550
    		BUSINESS PHONE:		3605334747

    	MAIL ADDRESS:
    		STREET 1:		624 SIMPSON AVE
    		CITY:			HOQUIAM
    		STATE:			WA
    		ZIP:			98550
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>timb8k52218.htm
    <DESCRIPTION>FORM 8-K
    <TEXT>
    Document 1 - file: timb8k52218.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-2.1
    <SEQUENCE>2
    <FILENAME>timb8k52218exh21.htm
    <DESCRIPTION>EXHIBIT 2.1
    <TEXT>
    Document 2 - file: timb8k52218exh21.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>3
    <FILENAME>timb8k52218exh991.htm
    <DESCRIPTION>EXHIBIT 99.1
    <TEXT>
    Document 3 - file: timb8k52218exh991.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.2
    <SEQUENCE>4
    <FILENAME>timb8k52218exh992.htm
    <DESCRIPTION>EXHIBIT 99.2
    <TEXT>
    Document 4 - file: timb8k52218exh992.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>image1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: image1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>slide0.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: slide0.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>slide1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: slide1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>slide2.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: slide2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>slide3.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: slide3.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>slide4.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: slide4.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>slide5.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: slide5.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>timb8k72616exh9911.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 12 - file: timb8k72616exh9911.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>