RANKING · 2020 CENSUS · 28 SHOWN OF 28

Highest South American population share, Idaho counties · 2020

Idaho counties ranked by the share of all residents who are South American origin (2020 American Community Survey). A concentration measure: South American residents as a percentage of total population. This list covers the 28 counties in Idaho that qualify, ranked against each other statewide.

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 SHAREVS 2010

01Teton County, IDID13,2541.8%+1.5 pts

02Franklin County, IDID15,8891.4%+0.7 pts

03Blaine County, IDID25,5171.4%+0.1 pts

04Jerome County, IDID26,3621.3%+0.6 pts

05Gem County, IDID21,7731.2%+1.1 pts

06Boise County, IDID8,5451.2%–

07Madison County, IDID55,1721.0%+0.6 pts

08Gooding County, IDID16,4460.8%−1.0 pts

09Bingham County, IDID51,1530.7%+0.5 pts

10Clearwater County, IDID9,1180.5%–

11Ada County, IDID546,1410.5%+0.2 pts

12Canyon County, IDID275,1230.3%+0.1 pts

13Bonner County, IDID54,4200.3%–

14Elmore County, IDID29,4650.3%+0.2 pts

15Latah County, IDID41,8420.3%+0.0 pts

16Lemhi County, IDID8,4740.3%–

17Bonneville County, IDID135,7710.3%+0.1 pts

18Boundary County, IDID13,9970.2%+0.1 pts

19Minidoka County, IDID22,9110.2%–

20Jefferson County, IDID35,2970.2%+0.1 pts

21Twin Falls County, IDID97,5390.1%−0.1 pts

22Bear Lake County, IDID6,7270.1%+0.0 pts

23Bannock County, IDID91,5910.1%−0.0 pts

24Kootenai County, IDID191,8640.1%+0.0 pts

25Idaho County, IDID17,8740.1%–

26Cassia County, IDID26,3970.1%+0.1 pts

27Fremont County, IDID14,2080.1%−0.0 pts

28Lewis County, IDID3,7040.1%−0.1 pts

SHOWING 1–28 OF 28

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS