Washington County Map

List of Counties in Washington

CountyFIPS CodeCounty SeatEstablished inPopulation (2019)Land Area (sq mi)Land Area (km2)
Adams County1Ritzville188319,9831,9254,986
Asotin County3Asotin188322,5826361,647
Benton County5Prosser1905204,3901,7004,403
Chelan County7Wenatchee189977,2002,9207,563
Clallam County9Port Angeles185477,3311,7384,501
Clark County11Vancouver1845488,2416291,629
Columbia County13Dayton18753,9858692,251
Cowlitz County15Kelso1854110,5931,1392,950
Douglas County17Waterville188343,4291,8194,711
Ferry County19Republic18997,6272,2045,708
Franklin County21Pasco188395,2221,2423,217
Garfield County23Pomeroy18812,2257101,839
Grant County25Ephrata190997,7332,6806,941
Grays Harbor County27Montesano185475,0611,9024,926
Island County29Coupeville185285,141209541
Jefferson County31Port Townsend185232,2211,8044,672
King County33Seattle18522,252,7822,1155,478
Kitsap County35Port Orchard1857271,4733951,023
Kittitas County37Ellensburg188347,9352,2975,949
Klickitat County39Goldendale185922,4251,8724,848
Lewis County41Chehalis184580,7072,4036,224
Lincoln County43Davenport188310,9392,3115,985
Mason County45Shelton185466,7689592,484
Okanogan County47Okanogan188842,2435,26813,644
Pacific County49South Bend185122,4719332,416
Pend Oreille County51Newport191113,7241,4003,626
Pierce County53Tacoma1852904,9801,6704,325
San Juan County55Friday Harbor187317,582174451
Skagit County57Mount Vernon1883129,2051,7314,483
Skamania County59Stevenson185412,0831,6564,289
Snohomish County61Everett1861822,0832,0875,405
Spokane County63Spokane1879522,7981,7644,569
Stevens County65Colville186345,7232,4786,418
Thurston County67Olympia1852290,5367221,870
Wahkiakum County69Cathlamet18544,488264684
Walla Walla County71Walla Walla185460,7601,2703,289
Whatcom County73Bellingham1854229,2472,1075,457
Whitman County75Colfax187150,1042,1595,592
Yakima County77Yakima1865250,8734,29611,127