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 (2024 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 1.0%. Biggest climber in the top 100 since 2020: Skamania County, WA, up 33 places to #1.

Scotch-Irish Americans: full group profile →

WashingtonAll states All rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPSCOTCH-IRISH SHAREVS 2010

01▲33Skamania County, WAWA12,6692.6%+0.5 pts

02▲4Jefferson County, WAWA33,9701.8%−2.6 pts

03▼2San Juan County, WAWA18,5771.8%−1.3 pts

04▲7Stevens County, WAWA49,6681.8%−1.1 pts

05▲7Clallam County, WAWA78,2021.5%−1.8 pts

06▼4Mason County, WAWA71,1651.5%−1.3 pts

07▼2Wahkiakum County, WAWA4,8731.5%−1.6 pts

08▲19Cowlitz County, WAWA114,8851.4%−1.6 pts

09▼2Kitsap County, WAWA283,3741.4%−1.9 pts

10▲28Asotin County, WAWA22,5451.3%−0.9 pts

11▼1Skagit County, WAWA132,9751.3%−0.9 pts

12▲5Island County, WAWA85,6571.3%−1.2 pts

13▲8Thurston County, WAWA304,2611.3%−1.4 pts

14▼10Ferry County, WAWA7,5171.2%−2.5 pts

15▲16Whitman County, WAWA48,5121.2%−1.3 pts

16Whatcom County, WAWA236,3921.1%−1.8 pts

17▲1Clark County, WAWA532,1191.1%−1.7 pts

18▼3Spokane County, WAWA558,3441.0%−1.6 pts

19▲7Kittitas County, WAWA48,8031.0%−1.8 pts

20▼11Pacific County, WAWA24,3571.0%−2.0 pts

21▲3Benton County, WAWA221,7221.0%−0.9 pts

22▼3Snohomish County, WAWA870,6560.9%−1.8 pts

23▲5King County, WAWA2,344,9390.9%−1.4 pts

24▼10Pend Oreille County, WAWA14,4570.9%−1.9 pts

25▼5Lewis County, WAWA88,0620.9%−2.3 pts

26▲4Pierce County, WAWA946,2880.9%−1.5 pts

27▼14Walla Walla County, WAWA62,3610.7%−1.5 pts

28▲5Lincoln County, WAWA11,9820.7%−4.6 pts

29▼4Chelan County, WAWA81,9410.7%−1.4 pts

30▼1Grays Harbor County, WAWA78,1440.7%−1.9 pts

31▼8Okanogan County, WAWA45,2300.6%−2.5 pts

32▼29Klickitat County, WAWA24,3310.6%−2.4 pts

33▲3Douglas County, WAWA46,4730.6%−2.3 pts

34▼2Yakima County, WAWA259,1850.4%−0.9 pts

35▲4Franklin County, WAWA102,6120.4%−1.0 pts

36▼1Grant County, WAWA105,7270.4%−1.6 pts

37Adams County, WAWA21,4880.3%−0.7 pts

38▼16Garfield County, WAWA2,4160.2%−3.0 pts

39▼31Columbia County, WAWA4,1410.2%−2.5 pts

SHOWING 1–39 OF 39

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES