RANKING · 2020 CENSUS · 44 SHOWN OF 44

Largest foreign-born population, Idaho counties · 2020

Idaho counties with the most residents born outside the United States, as of the 2020 American Community Survey. Ranked by number of people, not share. This list covers the 44 counties in Idaho that qualify, ranked against each other statewide.

IdahoAll states All rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPFOREIGN-BORN POPULATIONVS 2010

01Ada County, IDID546,14128,405+24%

02Canyon County, IDID275,12318,193+6%

03Twin Falls County, IDID97,5398,122+36%

04Bonneville County, IDID135,7716,037+14%

05Jerome County, IDID26,3624,053+13%

06Kootenai County, IDID191,8643,930+10%

07Blaine County, IDID25,5173,781+18%

08Minidoka County, IDID22,9113,333+52%

09Bannock County, IDID91,5913,092+28%

10Elmore County, IDID29,4652,978+33%

11Bingham County, IDID51,1532,423−18%

12Madison County, IDID55,1722,414+116%

13Cassia County, IDID26,3972,224−2%

14Gooding County, IDID16,4462,166−4%

15Latah County, IDID41,8421,984+38%

16Payette County, IDID27,8241,693+93%

17Bonner County, IDID54,4201,204+4%

18Power County, IDID8,2461,152+14%

19Jefferson County, IDID35,2971,109−8%

20Owyhee County, IDID12,6611,085−32%

21Teton County, IDID13,254914−2%

22Fremont County, IDID14,208892+3%

23Lincoln County, IDID5,603847+14%

24Nez Perce County, IDID42,905819+20%

25Gem County, IDID21,773817+1%

26Washington County, IDID11,583783−7%

27Boundary County, IDID13,997481+54%

28Clearwater County, IDID9,118362+125%

29Caribou County, IDID7,252329+46%

30Franklin County, IDID15,889326−9%

31Boise County, IDID8,545284+72%

32Clark County, IDID783205−29%

33Idaho County, IDID17,874197−12%

34Oneida County, IDID5,085182+2933%

35Lemhi County, IDID8,474168+79%

36Shoshone County, IDID14,130159−5%

37Bear Lake County, IDID6,727154+633%

38Valley County, IDID12,831125−49%

39Benewah County, IDID10,508115−1%

40Lewis County, IDID3,70462−23%

41Adams County, IDID5,01341+3%

42Camas County, IDID1,31633−67%

43Custer County, IDID4,63618−65%

44Butte County, IDID2,7834−93%

SHOWING 1–44 OF 44

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS