Member
Population
Miles
Size
WashingtonWashington has 39 Counties.
|
Washington Data Sets Washington Links |
Washington Association of County Officials 206 10th Avenue, SE Suite 307 Olympia, WA 98501-1333 Phone: (360) 753-7319 Fax: (360)664-2812 http://www.wacounties.org/waco/
Washington State Association of Counties
|
| County | NACo Member |
2010 Population |
Square Miles |
County Seat | Board Size |
Founded |
|---|---|---|---|---|---|---|
| Adams | 18,728 | 1,925 | Ritzville | 3 | 1883 | |
| Asotin | |
21,623 | 636 | Asotin | 3 | 1883 |
| Benton | |
175,177 | 1,700 | Prosser | 3 | 1905 |
| Chelan | |
72,453 | 2,921 | Wenatchee | 3 | 1899 |
| Clallam | |
71,404 | 1,738 | Port Angeles | 3 | 1854 |
| Clark | |
425,363 | 629 | Vancouver | 3 | 1845 |
| Columbia | |
4,078 | 869 | Dayton | 3 | 1875 |
| Cowlitz | |
102,410 | 1,140 | Kelso | 3 | 1854 |
| Douglas | 38,431 | 1,819 | Waterville | 3 | 1883 | |
| Ferry | |
7,551 | 2,203 | Republic | 3 | 1899 |
| Franklin | |
78,163 | 1,242 | Pasco | 3 | 1883 |
| Garfield | |
2,266 | 711 | Pomeroy | 3 | 1881 |
| Grant | |
89,120 | 2,680 | Ephrata | 3 | 1909 |
| Grays Harbor | 72,797 | 1,902 | Montesano | 3 | 1855 | |
| Island | |
78,506 | 208 | Coupeville | 3 | 1854 |
| Jefferson | |
29,872 | 1,804 | Port Townsend | 3 | 1854 |
| King | |
1,931,249 | 2,116 | Seattle | 9 | 1852 |
| Kitsap | |
251,133 | 395 | Port Orchard | 3 | 1857 |
| Kittitas | |
40,915 | 2,297 | Ellensburg | 3 | 1883 |
| Klickitat | |
20,318 | 1,871 | Goldendale | 3 | 1859 |
| Lewis | |
75,455 | 2,403 | Chehalis | 3 | 1845 |
| Lincoln | |
10,570 | 2,310 | Davenport | 3 | 1883 |
| Mason | |
60,699 | 959 | Shelton | 3 | 1854 |
| Okanogan | |
41,120 | 5,268 | Okanogan | 3 | 1888 |
| Pacific | |
20,920 | 933 | South Bend | 3 | 1854 |
| Pend Oreille | |
13,001 | 1,400 | Newport | 3 | 1911 |
| Pierce | 795,225 | 1,670 | Tacoma | 7 | 1853 | |
| San Juan | |
15,769 | 174 | Friday Harbor | 6 | 1873 |
| Skagit | |
116,901 | 1,731 | Mount Vernon | 3 | 1883 |
| Skamania | |
11,066 | 1,656 | Stevenson | 3 | 1854 |
| Snohomish | |
713,335 | 2,087 | Everett | 5 | 1861 |
| Spokane | |
471,221 | 1,764 | Spokane | 3 | 1858 |
| Stevens | |
43,531 | 2,478 | Colville | 3 | 1854 |
| Thurston | |
252,264 | 722 | Olympia | 3 | 1852 |
| Wahkiakum | |
3,978 | 263 | Cathlamet | 3 | 1854 |
| Walla Walla | |
58,781 | 1,270 | Walla Walla | 3 | 1854 |
| Whatcom | |
201,140 | 2,107 | Bellingham | 7 | 1854 |
| Whitman | |
44,776 | 2,159 | Colfax | 3 | 1871 |
| Yakima | |
243,231 | 4,295 | Yakima | 3 | 1865 |