RANKING · 2010 CENSUS · 39 SHOWN OF 39

Highest Welsh population share, Washington counties · 2010

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

RANKPLACESTATEPOPWELSH SHAREVS 2000

01Klickitat County, WAWA24,3312.6%–

02Lincoln County, WAWA11,9822.2%–

03San Juan County, WAWA18,5772.1%–

04Asotin County, WAWA22,5451.7%–

05Island County, WAWA85,6571.6%–

06Clallam County, WAWA78,2021.5%–

07Jefferson County, WAWA33,9701.5%–

08Skamania County, WAWA12,6691.5%–

09Ferry County, WAWA7,5171.5%–

10Kittitas County, WAWA48,8031.4%–

11Benton County, WAWA221,7221.4%–

12Skagit County, WAWA132,9751.3%–

13Thurston County, WAWA304,2611.2%–

14Pacific County, WAWA24,3571.2%–

15Clark County, WAWA532,1191.2%–

16Lewis County, WAWA88,0621.2%–

17Whitman County, WAWA48,5121.2%–

18Mason County, WAWA71,1651.1%–

19King County, WAWA2,344,9391.1%–

20Cowlitz County, WAWA114,8851.1%–

21Spokane County, WAWA558,3441.1%–

22Snohomish County, WAWA870,6561.1%–

23Pend Oreille County, WAWA14,4571.1%–

24Kitsap County, WAWA283,3741.1%–

25Pierce County, WAWA946,2881.0%–

26Whatcom County, WAWA236,3920.9%–

27Chelan County, WAWA81,9410.9%–

28Wahkiakum County, WAWA4,8730.9%–

29Walla Walla County, WAWA62,3610.9%–

30Columbia County, WAWA4,1410.9%–

31Grant County, WAWA105,7270.8%–

32Okanogan County, WAWA45,2300.8%–

33Grays Harbor County, WAWA78,1440.7%–

34Douglas County, WAWA46,4730.7%–

35Stevens County, WAWA49,6680.7%–

36Franklin County, WAWA102,6120.6%–

37Garfield County, WAWA2,4160.6%–

38Yakima County, WAWA259,1850.4%–

39Adams County, WAWA21,4880.3%–

SHOWING 1–39 OF 39

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