Washington

Washington has 39 Counties.

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Washington Association of County Officials
206 10Th Ave Se
Olympia, WA 98501-1333
Phone: (360)753-7319
Fax: (360)664-2812
http://www.wacounties.org/waco/

Washington State Association of Counties
206 10Th Ave., SE
Olympia, WA 98501-1333
Phone: (360)753-1886
Fax: (360)753-2842
http://wacounties.org/wsac/

County NACo
Member
2010
Population
Square
Miles
County Seat Board
Size
Founded
Adams   18,728 1,925 Ritzville   1883 
Asotin 21,623 636 Asotin   1883 
Benton 175,177 1,700 Prosser   1905 
Chelan 72,453 2,921 Wenatchee   1899 
Clallam 71,404 1,738 Port Angeles   1854 
Clark 425,363 629 Vancouver   1845 
Columbia 4,078 869 Dayton   1875 
Cowlitz 102,410 1,140 Kelso   1854 
Douglas 38,431 1,819 Waterville   1883 
Ferry 7,551 2,203 Republic   1899 
Franklin 78,163 1,242 Pasco   1883 
Garfield 2,266 711 Pomeroy   1881 
Grant 89,120 2,680 Ephrata   1909 
Grays Harbor 72,797 1,902 Montesano   1855 
Island 78,506 208 Coupeville   1854 
Jefferson 29,872 1,804 Port Townsend   1854 
King 1,931,249 2,116 Seattle   1852 
Kitsap 251,133 395 Port Orchard   1857 
Kittitas 40,915 2,297 Ellensburg   1883 
Klickitat 20,318 1,871 Goldendale   1859 
Lewis 75,455 2,403 Chehalis   1845 
Lincoln 10,570 2,310 Davenport   1883 
Mason 60,699 959 Shelton   1854 
Okanogan 41,120 5,268 Okanogan   1888 
Pacific 20,920 933 South Bend  1854 
Pend Oreille 13,001 1,400 Newport   1911 
Pierce 795,225 1,670 Tacoma  1853 
San Juan 15,769 174 Friday Harbor   1873 
Skagit 116,901 1,731 Mount Vernon   1883 
Skamania 11,066 1,656 Stevenson   1854 
Snohomish 713,335 2,087 Everett   1861 
Spokane 471,221 1,764 Spokane   1858 
Stevens 43,531 2,478 Colville   1854 
Thurston 252,264 722 Olympia  1852 
Wahkiakum 3,978 263 Cathlamet   1854 
Walla Walla 58,781 1,270 Walla Walla   1854 
Whatcom 201,140 2,107 Bellingham   1854 
Whitman 44,776 2,159 Colfax   1871 
Yakima 243,231 4,295 Yakima   1865