RANKING · 2024 ACS · 44 SHOWN OF 44

Highest American population share, Idaho counties

Idaho counties ranked by the share of all residents who are American ancestry (2024 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. The median across all 44 is 5.9%. Biggest climber in the top 100 since 2020: Blaine County, ID, up 41 places to #3.

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SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPAMERICAN SHAREVS 2010

01▲25Camas County, IDID1,31616.8%−3.4 pts

02Clark County, IDID78313.9%+7.4 pts

03▲41Blaine County, IDID25,51710.7%+2.8 pts

04▲15Lincoln County, IDID5,6039.9%+3.8 pts

05▲3Franklin County, IDID15,8899.6%+1.6 pts

06▼2Minidoka County, IDID22,9118.7%−1.5 pts

07▲5Bingham County, IDID51,1538.1%+2.2 pts

08▲6Butte County, IDID2,7837.5%−3.1 pts

09▲25Gooding County, IDID16,4467.2%+1.6 pts

10▲1Cassia County, IDID26,3977.0%−3.6 pts

11▲7Fremont County, IDID14,2086.9%+0.9 pts

12▼6Jerome County, IDID26,3626.8%−2.0 pts

13▼4Bonneville County, IDID135,7716.8%−3.1 pts

14▲21Boise County, IDID8,5456.6%−1.9 pts

15▼14Boundary County, IDID13,9976.6%−0.9 pts

16▼9Twin Falls County, IDID97,5396.5%−0.4 pts

17▲20Valley County, IDID12,8316.5%−1.0 pts

18▲10Madison County, IDID55,1726.5%+0.8 pts

19▼16Gem County, IDID21,7736.2%−9.6 pts

20▲1Washington County, IDID11,5836.1%−3.5 pts

21▲22Teton County, IDID13,2546.1%+1.9 pts

22▼9Idaho County, IDID17,8745.9%+3.0 pts

23▲13Benewah County, IDID10,5085.9%+2.4 pts

24▲7Owyhee County, IDID12,6615.7%−13.9 pts

25▼2Bannock County, IDID91,5915.7%−1.3 pts

26▼21Jefferson County, IDID35,2975.5%−2.7 pts

27▲2Payette County, IDID27,8245.2%−13.7 pts

28▼4Lemhi County, IDID8,4745.1%−4.8 pts

29▲12Shoshone County, IDID14,1305.1%+0.6 pts

30▲3Canyon County, IDID275,1235.0%−13.8 pts

31▼21Caribou County, IDID7,2524.8%+0.5 pts

32▲8Custer County, IDID4,6364.6%+1.8 pts

33▼3Bear Lake County, IDID6,7274.6%−3.4 pts

34▼12Bonner County, IDID54,4204.5%−0.4 pts

35▼10Clearwater County, IDID9,1184.5%−2.2 pts

36▼20Power County, IDID8,2464.4%−2.8 pts

37▼17Elmore County, IDID29,4654.3%−4.7 pts

38▲1Ada County, IDID546,1414.3%−4.4 pts

39▼24Oneida County, IDID5,0854.0%−8.8 pts

40▲2Kootenai County, IDID191,8644.0%−8.6 pts

41▼3Latah County, IDID41,8423.8%+0.8 pts

42▼15Nez Perce County, IDID42,9053.7%−4.0 pts

43▼11Lewis County, IDID3,7043.3%+0.3 pts

44▼27Adams County, IDID5,0133.0%−1.9 pts

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES