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Washington counties

Quick answer

Washington has 39 counties and county equivalents holding 7,740,984 residents. The statewide sales tax base rate is 6.5%, before county and city add-ons.

All 39 counties

Ranked by population, Census 2019-2023 ACS 5-year estimates.

CountyPopulationMedian incomeMedian home valueMedian rent
King County2,262,713$122,148$811,200$2,035
Pierce County924,106$96,632$484,400$1,722
Snohomish County834,648$107,982$644,600$1,866
Spokane County544,323$73,513$370,500$1,200
Clark County510,516$94,948$487,900$1,668
Thurston County296,640$93,985$451,500$1,634
Kitsap County276,581$98,546$505,700$1,741
Yakima County256,605$68,015$281,100$1,068
Whatcom County228,432$80,989$536,100$1,465
Benton County210,224$87,316$369,400$1,256
Skagit County130,407$85,474$486,200$1,439
Cowlitz County111,539$72,932$367,400$1,169
Grant County100,428$71,115$275,700$1,059
Franklin County97,676$82,755$345,700$1,171
Island County86,747$88,358$535,300$1,631
Lewis County83,925$69,690$341,500$1,044
Chelan County79,518$78,306$454,900$1,182
Clallam County77,593$67,999$385,600$1,110
Grays Harbor County76,397$63,539$279,500$1,018
Mason County66,968$78,359$377,400$1,205
Walla Walla County62,102$72,212$375,600$1,113
Stevens County47,470$67,405$308,000$864
Whitman County47,042$52,893$323,300$1,002
Kittitas County44,736$69,928$459,900$1,253
Douglas County43,733$80,374$402,900$1,234
Okanogan County42,811$60,293$284,200$868
Jefferson County33,313$71,143$495,100$1,291
Pacific County23,750$62,350$274,000$962
Klickitat County23,082$70,400$388,700$1,119
Asotin County22,424$69,107$286,200$994
Adams County20,690$65,042$251,300$901
San Juan County18,266$83,682$726,500$1,413
Pend Oreille County13,811$63,750$307,800$786
Skamania County12,276$90,085$472,600$1,024
Lincoln County11,271$71,227$272,300$872
Ferry County7,326$54,650$274,500$703
Wahkiakum County4,573$57,091$344,500$1,086
Columbia County3,996$71,528$256,100$944
Garfield County2,326$62,411$214,200$768

Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year

More Washington data.