RANKING · 2024 ACS · 39 SHOWN OF 39

Largest Scotch-Irish population, Washington counties

Washington counties ranked by the number of residents who are Scotch-Irish ancestry, from the 2024 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.

Scotch-Irish Americans: full group profile →

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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 2010

01King County, WAWA2,344,93920,537−52%

02Pierce County, WAWA946,2888,159−56%

03Snohomish County, WAWA870,6567,829−58%

04Spokane County, WAWA558,3445,579−54%

05Clark County, WAWA532,1195,437−53%

06Thurston County, WAWA304,2613,862−41%

07Kitsap County, WAWA283,3743,771−53%

08Whatcom County, WAWA236,3922,531−55%

09Benton County, WAWA221,7222,095−32%

10Skagit County, WAWA132,9751,724−34%

11Cowlitz County, WAWA114,8851,530−49%

12Clallam County, WAWA78,2021,165−51%

13Island County, WAWA85,6571,139−43%

14Yakima County, WAWA259,1851,065−67%

15Mason County, WAWA71,1651,015−39%

16Stevens County, WAWA49,668865−31%

17Lewis County, WAWA88,062756−68%

18Jefferson County, WAWA33,970618−53%

19Whitman County, WAWA48,512545−50%

20Chelan County, WAWA81,941530−64%

21Grays Harbor County, WAWA78,144503−72%

22Kittitas County, WAWA48,803466−59%

23Walla Walla County, WAWA62,361446−65%

24Franklin County, WAWA102,612400−60%

25Grant County, WAWA105,727363−78%

26San Juan County, WAWA18,577336−30%

27Skamania County, WAWA12,669326+38%

28Asotin County, WAWA22,545301−36%

29Okanogan County, WAWA45,230275−78%

30Douglas County, WAWA46,473253−76%

31Pacific County, WAWA24,357237−63%

32Klickitat County, WAWA24,331137−77%

33Pend Oreille County, WAWA14,457126−65%

34Ferry County, WAWA7,51786−68%

35Lincoln County, WAWA11,98276−86%

36Wahkiakum County, WAWA4,87368−45%

37Adams County, WAWA21,48855−68%

38Columbia County, WAWA4,1418−93%

39Garfield County, WAWA2,4165−93%

SHOWING 1–39 OF 39

Download CSV (full list, 39 rows)

UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES