RANKING · 2010 CENSUS · 40 SHOWN OF 40

Largest British population, Idaho counties · 2010

Idaho counties ranked by the number of residents who are British ancestry, from the 2023 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 40 counties in Idaho that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

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

YEAR2010 2020 2024

RANKPLACESTATEPOPBRITISH POPULATIONVS 2000

01Ada County, IDID546,1412,828–

02Canyon County, IDID275,123851–

03Bonneville County, IDID135,771696–

04Madison County, IDID55,172661–

05Bannock County, IDID91,591549–

06Kootenai County, IDID191,864405–

07Twin Falls County, IDID97,539360–

08Latah County, IDID41,842277–

09Bonner County, IDID54,420261–

10Blaine County, IDID25,517257–

11Jefferson County, IDID35,297204–

12Elmore County, IDID29,465198–

13Franklin County, IDID15,889162–

14Jerome County, IDID26,362157–

15Bingham County, IDID51,153129–

16Gooding County, IDID16,446129–

17Nez Perce County, IDID42,905117–

18Boise County, IDID8,545114–

19Gem County, IDID21,773106–

20Minidoka County, IDID22,91189–

21Cassia County, IDID26,39780–

22Owyhee County, IDID12,66179–

23Teton County, IDID13,25471–

24Valley County, IDID12,83156–

25Payette County, IDID27,82455–

26Oneida County, IDID5,08554–

27Clearwater County, IDID9,11844–

28Fremont County, IDID14,20839–

29Lemhi County, IDID8,47434–

30Benewah County, IDID10,50831–

31Butte County, IDID2,78329–

32Bear Lake County, IDID6,72726–

33Power County, IDID8,24626–

34Adams County, IDID5,01318–

35Caribou County, IDID7,25216–

36Custer County, IDID4,63615–

37Idaho County, IDID17,87412–

38Boundary County, IDID13,99710–

39Lewis County, IDID3,7047–

40Shoshone County, IDID14,1304–

SHOWING 1–40 OF 40

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