RANKING · 2010 CENSUS · 39 SHOWN OF 39

Highest Irish population share, Washington counties · 2010

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

01Garfield County, WAWA2,41619.9%–

02Pend Oreille County, WAWA14,45715.8%–

03Skamania County, WAWA12,66915.7%–

04Spokane County, WAWA558,34415.4%–

05Kittitas County, WAWA48,80315.4%–

06Cowlitz County, WAWA114,88515.0%–

07Lewis County, WAWA88,06214.9%–

08Asotin County, WAWA22,54514.8%–

09Lincoln County, WAWA11,98214.6%–

10Kitsap County, WAWA283,37414.4%–

11Island County, WAWA85,65714.3%–

12Stevens County, WAWA49,66814.2%–

13San Juan County, WAWA18,57714.1%–

14Jefferson County, WAWA33,97013.9%–

15Grays Harbor County, WAWA78,14413.5%–

16Mason County, WAWA71,16513.5%–

17Whitman County, WAWA48,51213.4%–

18Thurston County, WAWA304,26113.2%–

19Clark County, WAWA532,11913.1%–

20Pierce County, WAWA946,28813.1%–

21Whatcom County, WAWA236,39212.8%–

22Klickitat County, WAWA24,33112.7%–

23Walla Walla County, WAWA62,36112.7%–

24Clallam County, WAWA78,20212.6%–

25Snohomish County, WAWA870,65612.6%–

26Benton County, WAWA221,72212.5%–

27Okanogan County, WAWA45,23012.4%–

28Ferry County, WAWA7,51712.3%–

29Columbia County, WAWA4,14112.3%–

30Pacific County, WAWA24,35711.9%–

31Skagit County, WAWA132,97511.4%–

32King County, WAWA2,344,93911.1%–

33Douglas County, WAWA46,4739.4%–

34Chelan County, WAWA81,9418.3%–

35Yakima County, WAWA259,1857.3%–

36Grant County, WAWA105,7277.1%–

37Wahkiakum County, WAWA4,8736.8%–

38Adams County, WAWA21,4886.8%–

39Franklin County, WAWA102,6126.5%–

SHOWING 1–39 OF 39

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