RANKING · 2020 CENSUS · 39 SHOWN OF 39

Largest Mexican population, Washington counties · 2020

Washington counties ranked by the number of residents who are Mexican origin, 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.

Mexican Americans: full group profile →

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SAME RANKING BYCities States Metros

RELATEDHighest Mexican population share Largest Puerto Rican population Highest Puerto Rican population share Largest Cuban population Highest Cuban population share Largest Dominican population

YEAR2010 2020 2024

RANKPLACESTATEPOPMEXICAN POPULATIONVS 2010

01King County, WAWA2,344,939148,596+29%

02Yakima County, WAWA259,185119,405+22%

03Pierce County, WAWA946,28870,041+52%

04Snohomish County, WAWA870,65659,707+31%

05Franklin County, WAWA102,61245,924+35%

06Benton County, WAWA221,72240,702+57%

07Grant County, WAWA105,72738,341+33%

08Clark County, WAWA532,11938,113+72%

09Spokane County, WAWA558,34421,613+58%

10Skagit County, WAWA132,97521,035+32%

11Chelan County, WAWA81,94118,771+19%

12Thurston County, WAWA304,26116,861+58%

13Whatcom County, WAWA236,39216,225+49%

14Kitsap County, WAWA283,37414,013+36%

15Douglas County, WAWA46,47312,645+36%

16Adams County, WAWA21,48811,995+24%

17Walla Walla County, WAWA62,36111,160+15%

18Cowlitz County, WAWA114,8858,155+41%

19Okanogan County, WAWA45,2307,665+21%

20Lewis County, WAWA88,0627,058+40%

21Grays Harbor County, WAWA78,1445,230+8%

22Island County, WAWA85,6574,991+97%

23Clallam County, WAWA78,2023,655+40%

24Kittitas County, WAWA48,8033,452+45%

25Mason County, WAWA71,1653,445+6%

26Klickitat County, WAWA24,3312,323+26%

27Whitman County, WAWA48,5122,119+74%

28Pacific County, WAWA24,3571,872+28%

29Stevens County, WAWA49,6681,269+54%

30Jefferson County, WAWA33,970793+30%

31Asotin County, WAWA22,545792+62%

32San Juan County, WAWA18,577791+40%

33Skamania County, WAWA12,669726+37%

34Columbia County, WAWA4,141326+113%

35Lincoln County, WAWA11,982292+95%

36Pend Oreille County, WAWA14,457292−12%

37Ferry County, WAWA7,517148+37%

38Wahkiakum County, WAWA4,87394−22%

39Garfield County, WAWA2,41628−69%

SHOWING 1–39 OF 39

Download CSV (full list, 39 rows)

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS