RANKING · 2020 CENSUS · 35 SHOWN OF 35

Highest South American population share, Washington counties · 2020

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 35 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

01Wahkiakum County, WAWA4,8733.5%–

02Chelan County, WAWA81,9410.8%–

03Snohomish County, WAWA870,6560.8%–

04King County, WAWA2,344,9390.7%–

05Whitman County, WAWA48,5120.6%–

06Walla Walla County, WAWA62,3610.5%–

07Thurston County, WAWA304,2610.4%–

08Clark County, WAWA532,1190.4%–

09San Juan County, WAWA18,5770.4%–

10Whatcom County, WAWA236,3920.4%–

11Pierce County, WAWA946,2880.4%–

12Skagit County, WAWA132,9750.4%–

13Franklin County, WAWA102,6120.4%–

14Benton County, WAWA221,7220.4%–

15Jefferson County, WAWA33,9700.3%–

16Kitsap County, WAWA283,3740.3%–

17Adams County, WAWA21,4880.3%–

18Stevens County, WAWA49,6680.3%–

19Klickitat County, WAWA24,3310.3%–

20Spokane County, WAWA558,3440.2%–

21Island County, WAWA85,6570.2%–

22Yakima County, WAWA259,1850.2%–

23Pacific County, WAWA24,3570.2%–

24Clallam County, WAWA78,2020.2%–

25Okanogan County, WAWA45,2300.2%–

26Kittitas County, WAWA48,8030.1%–

27Garfield County, WAWA2,4160.1%–

28Grays Harbor County, WAWA78,1440.1%–

29Grant County, WAWA105,7270.1%–

30Ferry County, WAWA7,5170.1%–

31Lewis County, WAWA88,0620.1%–

32Douglas County, WAWA46,4730.1%–

33Mason County, WAWA71,1650.0%–

34Skamania County, WAWA12,6690.0%–

35Pend Oreille County, WAWA14,4570.0%–

SHOWING 1–35 OF 35

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