RANKING · 2024 ACS · 39 SHOWN OF 39

Highest Scotch-Irish population share, Washington counties

Washington counties ranked by the share of all residents who are Scotch-Irish ancestry (2023 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.

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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 2000

01Skamania County, WAWA12,6692.6%–

02Jefferson County, WAWA33,9701.8%–

03San Juan County, WAWA18,5771.8%–

04Stevens County, WAWA49,6681.8%–

05Clallam County, WAWA78,2021.5%–

06Mason County, WAWA71,1651.5%–

07Wahkiakum County, WAWA4,8731.5%–

08Cowlitz County, WAWA114,8851.4%–

09Kitsap County, WAWA283,3741.4%–

10Asotin County, WAWA22,5451.3%–

11Skagit County, WAWA132,9751.3%–

12Island County, WAWA85,6571.3%–

13Thurston County, WAWA304,2611.3%–

14Ferry County, WAWA7,5171.2%–

15Whitman County, WAWA48,5121.2%–

16Whatcom County, WAWA236,3921.1%–

17Clark County, WAWA532,1191.1%–

18Spokane County, WAWA558,3441.0%–

19Kittitas County, WAWA48,8031.0%–

20Pacific County, WAWA24,3571.0%–

21Benton County, WAWA221,7221.0%–

22Snohomish County, WAWA870,6560.9%–

23King County, WAWA2,344,9390.9%–

24Pend Oreille County, WAWA14,4570.9%–

25Lewis County, WAWA88,0620.9%–

26Pierce County, WAWA946,2880.9%–

27Walla Walla County, WAWA62,3610.7%–

28Lincoln County, WAWA11,9820.7%–

29Chelan County, WAWA81,9410.7%–

30Grays Harbor County, WAWA78,1440.7%–

31Okanogan County, WAWA45,2300.6%–

32Klickitat County, WAWA24,3310.6%–

33Douglas County, WAWA46,4730.6%–

34Yakima County, WAWA259,1850.4%–

35Franklin County, WAWA102,6120.4%–

36Grant County, WAWA105,7270.4%–

37Adams County, WAWA21,4880.3%–

38Garfield County, WAWA2,4160.2%–

39Columbia County, WAWA4,1410.2%–

SHOWING 1–39 OF 39

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