RANKING · 2010 CENSUS · 39 SHOWN OF 39

Highest Scotch-Irish population share, Washington counties · 2010

Washington counties ranked by the share of all residents who are Scotch-Irish ancestry (2010 American Community Survey). A concentration measure: Scotch-Irish residents as a percentage of total population. This list covers the 39 counties in Washington that qualify, ranked against each other statewide. The median across all 39 is 2.8%.

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 SHAREVS –

01Lincoln County, WAWA11,9825.3%–

02Jefferson County, WAWA33,9704.4%–

03Ferry County, WAWA7,5173.6%–

04Clallam County, WAWA78,2023.3%–

05Kitsap County, WAWA283,3743.2%–

06Garfield County, WAWA2,4163.2%–

07Lewis County, WAWA88,0623.2%–

08Okanogan County, WAWA45,2303.2%–

09San Juan County, WAWA18,5773.1%–

10Wahkiakum County, WAWA4,8733.1%–

11Pacific County, WAWA24,3573.0%–

12Klickitat County, WAWA24,3313.0%–

13Cowlitz County, WAWA114,8853.0%–

14Whatcom County, WAWA236,3922.9%–

15Stevens County, WAWA49,6682.9%–

16Douglas County, WAWA46,4732.9%–

17Mason County, WAWA71,1652.8%–

18Kittitas County, WAWA48,8032.8%–

19Pend Oreille County, WAWA14,4572.8%–

20Clark County, WAWA532,1192.8%–

21Columbia County, WAWA4,1412.7%–

22Snohomish County, WAWA870,6562.7%–

23Thurston County, WAWA304,2612.7%–

24Spokane County, WAWA558,3442.6%–

25Island County, WAWA85,6572.5%–

26Grays Harbor County, WAWA78,1442.5%–

27Whitman County, WAWA48,5122.5%–

28Pierce County, WAWA946,2882.4%–

29King County, WAWA2,344,9392.3%–

30Skagit County, WAWA132,9752.3%–

31Walla Walla County, WAWA62,3612.2%–

32Asotin County, WAWA22,5452.2%–

33Skamania County, WAWA12,6692.2%–

34Chelan County, WAWA81,9412.1%–

35Grant County, WAWA105,7271.9%–

36Benton County, WAWA221,7221.8%–

37Franklin County, WAWA102,6121.4%–

38Yakima County, WAWA259,1851.4%–

39Adams County, WAWA21,4881.0%–

SHOWING 1–39 OF 39

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS