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 (2024 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. The median across all 39 is 10.6%. Biggest climber in the top 100 since 2020: Whitman County, WA, up 24 places to #9.

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WashingtonAll states All rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPIRISH SHAREVS 2010

01▲1Jefferson County, WAWA33,97015.9%+2.0 pts

02▲5San Juan County, WAWA18,57713.3%−0.8 pts

03▲19Pend Oreille County, WAWA14,45713.1%−2.7 pts

04▲19Kittitas County, WAWA48,80313.1%−2.3 pts

05▲10Skamania County, WAWA12,66913.1%−2.6 pts

06▼1Spokane County, WAWA558,34412.9%−2.5 pts

07▼3Kitsap County, WAWA283,37412.9%−1.6 pts

08▲2Island County, WAWA85,65712.8%−1.5 pts

09▲24Whitman County, WAWA48,51212.7%−0.7 pts

10▲7Stevens County, WAWA49,66811.9%−2.3 pts

11▲14Asotin County, WAWA22,54511.7%−3.1 pts

12Mason County, WAWA71,16511.7%−1.8 pts

13▼2Thurston County, WAWA304,26111.7%−1.5 pts

14▼13Ferry County, WAWA7,51711.6%−0.7 pts

15▼6Grays Harbor County, WAWA78,14411.6%−2.0 pts

16▼2Garfield County, WAWA2,41611.3%−8.5 pts

17▲4Skagit County, WAWA132,97511.3%−0.1 pts

18▲12Columbia County, WAWA4,14111.2%−1.1 pts

19▼16Cowlitz County, WAWA114,88511.0%−4.0 pts

20▼7Clallam County, WAWA78,20210.6%−2.0 pts

21▼13Lewis County, WAWA88,06210.5%−4.4 pts

22▼3Clark County, WAWA532,11910.2%−2.9 pts

23▲1Pierce County, WAWA946,28810.2%−2.9 pts

24▲4Walla Walla County, WAWA62,36110.2%−2.5 pts

25▲10Lincoln County, WAWA11,98210.1%−4.5 pts

26▼20Klickitat County, WAWA24,33110.0%−2.7 pts

27▲2Whatcom County, WAWA236,39210.0%−2.8 pts

28▼8Benton County, WAWA221,7229.6%−2.9 pts

29▼11Pacific County, WAWA24,3579.4%−2.5 pts

30▼3Snohomish County, WAWA870,6569.2%−3.4 pts

31▼15Okanogan County, WAWA45,2308.7%−3.7 pts

32King County, WAWA2,344,9398.6%−2.5 pts

33▼7Douglas County, WAWA46,4738.5%−0.9 pts

34Chelan County, WAWA81,9418.3%0.0 pts

35▼4Wahkiakum County, WAWA4,8738.2%+1.4 pts

36Grant County, WAWA105,7276.2%−0.9 pts

37▲1Yakima County, WAWA259,1855.4%−2.0 pts

38▲1Adams County, WAWA21,4884.8%−1.9 pts

39▼2Franklin County, WAWA102,6124.8%−1.7 pts

SHOWING 1–39 OF 39

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