RANKING · 2020 CENSUS · 28 SHOWN OF 28

Largest South American population, Idaho counties · 2020

Idaho counties ranked by the number of residents who are South American 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 28 counties in Idaho that qualify, ranked against each other statewide. The median across all 28 is 118.

South Americans: full group profile →

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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 POPULATIONVS 2010

01Ada County, IDID546,1412,263+101%

02Canyon County, IDID275,123763+93%

03Madison County, IDID55,172391+162%

04Bingham County, IDID51,153337+212%

05Blaine County, IDID25,517313+13%

06Bonneville County, IDID135,771313+62%

07Jerome County, IDID26,362309+106%

08Gem County, IDID21,773218+1111%

09Teton County, IDID13,254216+620%

10Franklin County, IDID15,889195+127%

11Kootenai County, IDID191,864189+52%

12Bonner County, IDID54,420149–

13Latah County, IDID41,842126+29%

14Gooding County, IDID16,446118−56%

15Twin Falls County, IDID97,539116−42%

16Bannock County, IDID91,591109−13%

17Boise County, IDID8,54590–

18Elmore County, IDID29,46586+353%

19Jefferson County, IDID35,29744+780%

20Clearwater County, IDID9,11843–

21Minidoka County, IDID22,91137–

22Boundary County, IDID13,99730+173%

23Cassia County, IDID26,39723+130%

24Lemhi County, IDID8,47423–

25Idaho County, IDID17,87416–

26Fremont County, IDID14,20811−31%

27Bear Lake County, IDID6,7278+14%

28Lewis County, IDID3,7043−57%

SHOWING 1–28 OF 28

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