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 (2023 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.

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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

01Teton County, IDID13,2541.8%–

02Franklin County, IDID15,8891.4%–

03Blaine County, IDID25,5171.4%–

04Jerome County, IDID26,3621.3%–

05Gem County, IDID21,7731.2%–

06Boise County, IDID8,5451.2%–

07Madison County, IDID55,1721.0%–

08Gooding County, IDID16,4460.8%–

09Bingham County, IDID51,1530.7%–

10Clearwater County, IDID9,1180.5%–

11Ada County, IDID546,1410.5%–

12Canyon County, IDID275,1230.3%–

13Bonner County, IDID54,4200.3%–

14Elmore County, IDID29,4650.3%–

15Latah County, IDID41,8420.3%–

16Lemhi County, IDID8,4740.3%–

17Bonneville County, IDID135,7710.3%–

18Boundary County, IDID13,9970.2%–

19Minidoka County, IDID22,9110.2%–

20Jefferson County, IDID35,2970.2%–

21Twin Falls County, IDID97,5390.1%–

22Bear Lake County, IDID6,7270.1%–

23Bannock County, IDID91,5910.1%–

24Kootenai County, IDID191,8640.1%–

25Idaho County, IDID17,8740.1%–

26Cassia County, IDID26,3970.1%–

27Fremont County, IDID14,2080.1%–

28Lewis County, IDID3,7040.1%–

SHOWING 1–28 OF 28

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