RANKING · 2024 ACS · 39 SHOWN OF 39

Highest Irish population share, Washington counties

Washington counties ranked by the share of all residents who are Irish ancestry (2023 American Community Survey). A concentration measure: 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

RANKPLACESTATEPOPIRISH SHAREVS 2000

01Jefferson County, WAWA33,97015.9%–

02San Juan County, WAWA18,57713.3%–

03Pend Oreille County, WAWA14,45713.1%–

04Kittitas County, WAWA48,80313.1%–

05Skamania County, WAWA12,66913.1%–

06Spokane County, WAWA558,34412.9%–

07Kitsap County, WAWA283,37412.9%–

08Island County, WAWA85,65712.8%–

09Whitman County, WAWA48,51212.7%–

10Stevens County, WAWA49,66811.9%–

11Asotin County, WAWA22,54511.7%–

12Mason County, WAWA71,16511.7%–

13Thurston County, WAWA304,26111.7%–

14Ferry County, WAWA7,51711.6%–

15Grays Harbor County, WAWA78,14411.6%–

16Garfield County, WAWA2,41611.3%–

17Skagit County, WAWA132,97511.3%–

18Columbia County, WAWA4,14111.2%–

19Cowlitz County, WAWA114,88511.0%–

20Clallam County, WAWA78,20210.6%–

21Lewis County, WAWA88,06210.5%–

22Clark County, WAWA532,11910.2%–

23Pierce County, WAWA946,28810.2%–

24Walla Walla County, WAWA62,36110.2%–

25Lincoln County, WAWA11,98210.1%–

26Klickitat County, WAWA24,33110.0%–

27Whatcom County, WAWA236,39210.0%–

28Benton County, WAWA221,7229.6%–

29Pacific County, WAWA24,3579.4%–

30Snohomish County, WAWA870,6569.2%–

31Okanogan County, WAWA45,2308.7%–

32King County, WAWA2,344,9398.6%–

33Douglas County, WAWA46,4738.5%–

34Chelan County, WAWA81,9418.3%–

35Wahkiakum County, WAWA4,8738.2%–

36Grant County, WAWA105,7276.2%–

37Yakima County, WAWA259,1855.4%–

38Adams County, WAWA21,4884.8%–

39Franklin County, WAWA102,6124.8%–

SHOWING 1–39 OF 39

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