RANKING · 2020 CENSUS · 43 SHOWN OF 43

Highest British population share, Idaho counties · 2020

Idaho counties ranked by the share of all residents who are British ancestry (2020 American Community Survey). A concentration measure: British residents as a percentage of total population. This list covers the 43 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 SHAREVS 2010

01Madison County, IDID55,1722.5%+0.6 pts

02Lemhi County, IDID8,4741.9%+1.5 pts

03Franklin County, IDID15,8891.9%+0.6 pts

04Teton County, IDID13,2541.9%+1.1 pts

05Custer County, IDID4,6361.8%+1.5 pts

06Gem County, IDID21,7731.5%+0.9 pts

07Bonner County, IDID54,4201.4%+0.8 pts

08Bingham County, IDID51,1531.3%+1.0 pts

09Bonneville County, IDID135,7711.3%+0.6 pts

10Shoshone County, IDID14,1301.2%+1.2 pts

11Owyhee County, IDID12,6611.2%+0.5 pts

12Caribou County, IDID7,2521.2%+1.0 pts

13Kootenai County, IDID191,8641.2%+0.9 pts

14Cassia County, IDID26,3971.1%+0.7 pts

15Bannock County, IDID91,5911.1%+0.4 pts

16Ada County, IDID546,1411.1%+0.3 pts

17Idaho County, IDID17,8741.0%+1.0 pts

18Latah County, IDID41,8420.9%+0.2 pts

19Bear Lake County, IDID6,7270.9%+0.5 pts

20Payette County, IDID27,8240.8%+0.6 pts

21Lincoln County, IDID5,6030.8%–

22Boundary County, IDID13,9970.8%+0.7 pts

23Minidoka County, IDID22,9110.8%+0.3 pts

24Jefferson County, IDID35,2970.7%−0.1 pts

25Clearwater County, IDID9,1180.7%+0.2 pts

26Elmore County, IDID29,4650.6%−0.1 pts

27Valley County, IDID12,8310.6%−0.0 pts

28Fremont County, IDID14,2080.5%+0.2 pts

29Canyon County, IDID275,1230.5%+0.1 pts

30Jerome County, IDID26,3620.5%−0.2 pts

31Oneida County, IDID5,0850.5%−0.8 pts

32Blaine County, IDID25,5170.5%−0.7 pts

33Nez Perce County, IDID42,9050.4%+0.1 pts

34Twin Falls County, IDID97,5390.4%−0.1 pts

35Benewah County, IDID10,5080.3%−0.0 pts

36Gooding County, IDID16,4460.3%−0.6 pts

37Washington County, IDID11,5830.3%–

38Lewis County, IDID3,7040.2%+0.0 pts

39Boise County, IDID8,5450.1%−1.5 pts

40Adams County, IDID5,0130.1%−0.3 pts

41Camas County, IDID1,3160.1%–

42Power County, IDID8,2460.1%−0.2 pts

43Butte County, IDID2,7830.0%−1.0 pts

SHOWING 1–43 OF 43

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS