RANKING · 2020 CENSUS · 44 SHOWN OF 44

Highest American population share, Idaho counties · 2020

Idaho counties ranked by the share of all residents who are American ancestry (2023 American Community Survey). A concentration measure: American residents as a percentage of total population. This list covers the 44 counties in Idaho that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

RELATEDLargest American population Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share Largest Iraqi population

YEAR2010 2020 2024

RANKPLACESTATEPOPAMERICAN SHAREVS 2000

01Boundary County, IDID13,99714.9%–

02Clark County, IDID78313.4%–

03Gem County, IDID21,77310.8%–

04Minidoka County, IDID22,91110.3%–

05Jefferson County, IDID35,29710.2%–

06Jerome County, IDID26,36210.1%–

07Twin Falls County, IDID97,5399.7%–

08Franklin County, IDID15,8899.7%–

09Bonneville County, IDID135,7719.3%–

10Caribou County, IDID7,2529.2%–

11Cassia County, IDID26,3979.1%–

12Bingham County, IDID51,1538.4%–

13Idaho County, IDID17,8748.0%–

14Butte County, IDID2,7837.6%–

15Oneida County, IDID5,0857.6%–

16Power County, IDID8,2467.5%–

17Adams County, IDID5,0137.1%–

18Fremont County, IDID14,2086.8%–

19Lincoln County, IDID5,6036.7%–

20Elmore County, IDID29,4656.6%–

21Washington County, IDID11,5836.5%–

22Bonner County, IDID54,4206.4%–

23Bannock County, IDID91,5916.3%–

24Lemhi County, IDID8,4746.2%–

25Clearwater County, IDID9,1186.2%–

26Camas County, IDID1,3165.9%–

27Nez Perce County, IDID42,9055.8%–

28Madison County, IDID55,1725.8%–

29Payette County, IDID27,8245.6%–

30Bear Lake County, IDID6,7275.6%–

31Owyhee County, IDID12,6615.5%–

32Lewis County, IDID3,7045.5%–

33Canyon County, IDID275,1235.5%–

34Gooding County, IDID16,4465.3%–

35Boise County, IDID8,5455.1%–

36Benewah County, IDID10,5085.0%–

37Valley County, IDID12,8314.9%–

38Latah County, IDID41,8424.8%–

39Ada County, IDID546,1414.5%–

40Custer County, IDID4,6364.5%–

41Shoshone County, IDID14,1304.3%–

42Kootenai County, IDID191,8644.3%–

43Teton County, IDID13,2543.5%–

44Blaine County, IDID25,5172.6%–

SHOWING 1–44 OF 44

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