RANKING · 2020 CENSUS · 39 SHOWN OF 39

Largest Scotch-Irish population, Washington counties · 2020

Washington counties ranked by the number of residents who are Scotch-Irish ancestry, from the 2023 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 39 counties in Washington that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

RELATEDLargest American population Highest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share

YEAR2010 2020 2024

RANKPLACESTATEPOPSCOTCH-IRISH POPULATIONVS 2000

01King County, WAWA2,344,93923,836–

02Snohomish County, WAWA870,65610,110–

03Pierce County, WAWA946,2887,705–

04Spokane County, WAWA558,3446,923–

05Clark County, WAWA532,1196,216–

06Kitsap County, WAWA283,3744,057–

07Thurston County, WAWA304,2613,288–

08Whatcom County, WAWA236,3923,004–

09Benton County, WAWA221,7222,268–

10Skagit County, WAWA132,9751,845–

11Yakima County, WAWA259,1851,827–

12Mason County, WAWA71,1651,230–

13Cowlitz County, WAWA114,8851,172–

14Island County, WAWA85,6571,119–

15Clallam County, WAWA78,2021,066–

16Lewis County, WAWA88,062930–

17Chelan County, WAWA81,941859–

18Walla Walla County, WAWA62,361834–

19Grays Harbor County, WAWA78,144715–

20Stevens County, WAWA49,668631–

21Grant County, WAWA105,727581–

22Kittitas County, WAWA48,803526–

23Jefferson County, WAWA33,970485–

24Okanogan County, WAWA45,230480–

25Klickitat County, WAWA24,331404–

26Whitman County, WAWA48,512390–

27Franklin County, WAWA102,612390–

28Pacific County, WAWA24,357321–

29San Juan County, WAWA18,577320–

30Douglas County, WAWA46,473246–

31Pend Oreille County, WAWA14,457186–

32Ferry County, WAWA7,517140–

33Asotin County, WAWA22,545119–

34Adams County, WAWA21,488111–

35Wahkiakum County, WAWA4,87377–

36Lincoln County, WAWA11,98277–

37Skamania County, WAWA12,66977–

38Columbia County, WAWA4,14159–

39Garfield County, WAWA2,41626–

SHOWING 1–39 OF 39

Download CSV (full list, 39 rows)

UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES