RANKING · 2024 ACS · 37 SHOWN OF 37

Highest South American population share, Washington counties

Washington counties ranked by the share of all residents who are South American origin (2023 American Community Survey). A concentration measure: South American residents as a percentage of total population. This list covers the 37 counties in Washington that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

RELATEDLargest Mexican population Highest Mexican population share Largest Puerto Rican population Highest Puerto Rican population share Largest Cuban population Highest Cuban population share

YEAR2010 2020 2024

RANKPLACESTATEPOPSOUTH AMERICAN SHAREVS 2000

01Columbia County, WAWA4,1411.4%–

02Snohomish County, WAWA870,6561.1%–

03King County, WAWA2,344,9391.0%–

04Whitman County, WAWA48,5120.8%–

05Chelan County, WAWA81,9410.6%–

06Kitsap County, WAWA283,3740.5%–

07Pierce County, WAWA946,2880.5%–

08Lewis County, WAWA88,0620.5%–

09Thurston County, WAWA304,2610.5%–

10Whatcom County, WAWA236,3920.5%–

11Walla Walla County, WAWA62,3610.5%–

12Island County, WAWA85,6570.4%–

13Benton County, WAWA221,7220.4%–

14Lincoln County, WAWA11,9820.4%–

15Clark County, WAWA532,1190.4%–

16Mason County, WAWA71,1650.4%–

17Skagit County, WAWA132,9750.4%–

18San Juan County, WAWA18,5770.4%–

19Jefferson County, WAWA33,9700.3%–

20Garfield County, WAWA2,4160.3%–

21Kittitas County, WAWA48,8030.3%–

22Cowlitz County, WAWA114,8850.3%–

23Spokane County, WAWA558,3440.3%–

24Adams County, WAWA21,4880.3%–

25Clallam County, WAWA78,2020.2%–

26Grant County, WAWA105,7270.2%–

27Skamania County, WAWA12,6690.2%–

28Klickitat County, WAWA24,3310.2%–

29Franklin County, WAWA102,6120.2%–

30Yakima County, WAWA259,1850.2%–

31Asotin County, WAWA22,5450.1%–

32Pend Oreille County, WAWA14,4570.1%–

33Stevens County, WAWA49,6680.1%–

34Okanogan County, WAWA45,2300.0%–

35Grays Harbor County, WAWA78,1440.0%–

36Douglas County, WAWA46,4730.0%–

37Ferry County, WAWA7,5170.0%–

SHOWING 1–37 OF 37

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