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| County |
FIPS Code [3] |
County seat [4] |
Established [4] |
Origin [2] |
Etymology [2] |
Population [4] |
Area [4] |
Map |
|---|---|---|---|---|---|---|---|---|
| Adams County | 001 | Ritzville | 1883 | Whitman County | John Adams (1735-1826), second President of the United States | 16,428 | 1,925 sq mi (4,986 km²) |
 |
| Asotin County | 003 | Asotin | 1883 | Garfield County | The Nez Percé name for Eel Creek | 20,551 | 636 sq mi (1,647 km²) |
 |
| Benton County | 005 | Prosser | 1905 | Yakima and Klickitat Counties | Thomas Hart Benton (1782 – 1858), a Missouri U.S. Senator | 142,475 | 1,703 sq mi (4,411 km²) |
 |
| Chelan County | 007 | Wenatchee | 1899 | Okanogan and Kittitas Counties | A Native American word meaning deep water, likely referring to Lake Chelan | 66,616 | 2,922 sq mi (7,568 km²) |
 |
| Clallam County | 009 | Port Angeles | 1854 | Jefferson County | A Klallam word meaning "the strong people" | 64,525 | 1,745 sq mi (4,520 km²) |
 |
| Clark County | 011 | Vancouver | 1845 | Original county | William Clark (1770 – 1838), the co-captain of the Lewis and Clark Expedition | 345,238 | 628 sq mi (1,627 km²) |
 |
| Columbia County | 013 | Dayton | 1875 | Walla Walla County | The Columbia River | 4,064 | 869 sq mi (2,251 km²) |
 |
| Cowlitz County | 015 | Kelso | 1854 | Original county | Cowlitz, an Indian tribe | 92,948 | 1,139 sq mi (2,950 km²) |
 |
| Douglas County | 017 | Waterville | 1883 | Lincoln County | Stephen A. Douglas (1813 - 1861), American statesman. | 32,603 | 1,821 sq mi (4,716 km²) |
 |
| Ferry County | 019 | Republic | 1899 | Stevens County | Elisha P. Ferry (1825 - 1895), first Governor of Washington State | 7,260 | 2,204 sq mi (5,708 km²) |
 |
| Franklin County | 021 | Pasco | 1883 | Whitman County | Benjamin Franklin | 49,347 | 1,242 sq mi (3,217 km²) |
 |
| Garfield County | 023 | Pomeroy | 1881 | Columbia County | James A. Garfield | 2,397 | 710 sq mi (1,839 km²) |
 |
| Grant County | 025 | Ephrata | 1909 | Douglas County | Ulysses S. Grant | 74,698 | 2,681 sq mi (6,944 km²) |
 |
| Grays Harbor County | 027 | Montesano | 1854 | Thurston County | Grays Harbor, a body of water named after Robert Gray | 67,194 | 1,917 sq mi (4,965 km²) |
 |
| Island County | 029 | Coupeville | 1853 | Thurston County | Whidbey, Camano, and the San Juan Islands | 71,558 | 209 sq mi (541 km²) |
 |
| Jefferson County | 031 | Port Townsend | 1852 | Thurston County | Thomas Jefferson | 25,953 | 1,809 sq mi (4,685 km²) |
 |
| King County | 033 | Seattle | 1852 | Thurston County | William Rufus King, vice president of the United States under Franklin Pierce; "renamed" in 1986 after Martin Luther King, Jr. | 1,737,034 | 2,126 sq mi (5,506 km²) |
 |
| Kitsap County | 035 | Port Orchard | 1857 | King and Jefferson Counties | Chief Kitsap | 231,969 | 396 sq mi (1,026 km²) |
 |
| Kittitas County | 037 | Ellensburg | 1883 | Klickitat County | Kittitas tribe word of uncertain meaning | 33,362 | 2,297 sq mi (5,949 km²) |
 |
| Klickitat County | 039 | Goldendale | 1859 | Walla Walla County | Klickitat Tribe | 19,161 | 1,872 sq mi (4,848 km²) |
 |
| Lewis County | 041 | Chehalis | 1845 | Original county | Meriwether Lewis (1774 – 1809), the co-captain of the Lewis and Clark Expedition | 68,600 | 2,408 sq mi (6,237 km²) |
 |
| Lincoln County | 043 | Davenport | 1883 | Whitman County | Abraham Lincoln | 10,184 | 2,311 sq mi (5,985 km²) |
 |
| Mason County | 045 | Shelton | 1854 | King County | C.H. Mason, first Secretary of Washington Territory | 49,405 | 961 sq mi (2,489 km²) |
 |
| Okanogan County | 047 | Okanogan | 1888 | Stevens County | A Salish Native American word meaning rendezvous | 39,564 | 5,268 sq mi (13,644 km²) |
 |
| Pacific County | 049 | South Bend | 1851 | Lewis County | The Pacific Ocean | 20,984 | 975 sq mi (2,525 km²) |
 |
| Pend Oreille County | 051 | Newport | 1911 | Stevens County | The Pend d'Oreille Native American tribe | 11,732 | 1,400 sq mi (3,626 km²) |
 |
| Pierce County | 053 | Tacoma | 1852 | Thurston County | Franklin Pierce, 14th President of the United States | 700,820 | 1,676 sq mi (4,341 km²) |
 |
| San Juan County | 055 | Friday Harbor | 1873 | Whatcom County | San Juan Island | 14,077 | 175 sq mi (453 km²) |
 |
| Skagit County | 057 | Mount Vernon | 1883 | Whatcom County | The Skagit Native American tribe | 102,979 | 1,735 sq mi (4,494 km²) |
 |
| Skamania County | 059 | Stevenson | 1854 | Clark County | A Chinookan word meaning "swift water" | 9,872 | 1,656 sq mi (4,289 km²) |
 |
| Snohomish County | 061 | Everett | 1861 | Island County | The Snohomish tribe | 606,024 | 2,090 sq mi (5,413 km²) |
 |
| Spokane County | 063 | Spokane | 1879 | Stevens County | The Spokane Native American tribe | 417,939 | 1,764 sq mi (4,569 km²) |
 |
| Stevens County | 065 | Colville | 1863 | Walla Walla County | Isaac Ingalls Stevens, the first governor of the Washington Territory. | 40,066 | 2,478 sq mi (6,418 km²) |
 |
| Thurston County | 067 | Olympia | 1852 | Lewis County | Samuel R. Thurston, the Oregon Territory's first delegate to Congress | 207,355 | 727 sq mi (1,883 km²) |
 |
| Wahkiakum County | 069 | Cathlamet | 1854 | Cowlitz County | Leader of Wahkiakum ("Tall Timber"), Native American tribe | 3,824 | 264 sq mi (684 km²) |
 |
| Walla Walla County | 071 | Walla Walla | 1854 | Skamania County | The Walla Walla Native American tribe | 55,180 | 1,270 sq mi (3,289 km²) |
 |
| Whatcom County | 073 | Bellingham | 1854 | Island County | Nooksack word meaning "noisy water" | 166,814 | 2,120 sq mi (5,491 km²) |
 |
| Whitman County | 075 | Colfax | 1871 | Stevens County | Marcus Whitman, a Presbyterian missionary killed by Cayuse 1847. | 40,740 | 2,159 sq mi (5,592 km²) |
 |
| Yakima County | 077 | Yakima | 1865 | Ferguson County (defunct) | The Yakima Native American tribe | 222,581 | 4,296 sq mi (11,127 km²) |
 |
References
- ^ "Historical Timeline of Events Leading to the formation of Washington State". Retrieved on 2008-08-09.
- ^ a b c "Washington Counties". Online Encyclopedia of Washington State History. HistoryLink.org. Retrieved on 2008-05-06.
- ^ "EPA County FIPS Code Listing". US Environmental Protection Agency. Retrieved on 2008-05-06.
- ^ a b c d National Association of Counties. "NACo - Find a county". Retrieved on 2008-05-06.
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