RANKING · 2020 CENSUS · 39 SHOWN OF 39

Largest Welsh population, Washington counties · 2020

Washington counties ranked by the number of residents who are Welsh ancestry, from the 2020 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 39 counties in Washington that qualify, ranked against each other statewide.

Welsh Americans: full group profile →

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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 POPULATIONVS 2010

01King County, WAWA2,344,93919,949−4%

02Snohomish County, WAWA870,6567,890+5%

03Pierce County, WAWA946,2887,461−5%

04Spokane County, WAWA558,3445,731+13%

05Clark County, WAWA532,1194,294−12%

06Kitsap County, WAWA283,3743,298+27%

07Benton County, WAWA221,7222,317−2%

08Thurston County, WAWA304,2612,307−23%

09Whatcom County, WAWA236,3922,034+11%

10Skagit County, WAWA132,9751,629+11%

11Lewis County, WAWA88,0621,068+22%

12Island County, WAWA85,6571,064−17%

13Cowlitz County, WAWA114,885960−14%

14Yakima County, WAWA259,185947+4%

15Clallam County, WAWA78,202945−14%

16Kittitas County, WAWA48,803774+36%

17Walla Walla County, WAWA62,361704+39%

18Mason County, WAWA71,165667+0%

19Douglas County, WAWA46,473581+122%

20Stevens County, WAWA49,668544+91%

21Grays Harbor County, WAWA78,144535+0%

22Franklin County, WAWA102,612515+12%

23Grant County, WAWA105,727480−29%

24Chelan County, WAWA81,941468−29%

25Okanogan County, WAWA45,230468+50%

26Jefferson County, WAWA33,970427−3%

27Whitman County, WAWA48,512425−17%

28Klickitat County, WAWA24,331366−30%

29San Juan County, WAWA18,577288−13%

30Pacific County, WAWA24,357205−19%

31Pend Oreille County, WAWA14,457176+28%

32Asotin County, WAWA22,545154−57%

33Wahkiakum County, WAWA4,873146+317%

34Ferry County, WAWA7,517145+32%

35Skamania County, WAWA12,669115−28%

36Lincoln County, WAWA11,98288−61%

37Adams County, WAWA21,48833−41%

38Columbia County, WAWA4,14113−62%

39Garfield County, WAWA2,4164−71%

SHOWING 1–39 OF 39

Download CSV (full list, 39 rows)

UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS