RANKING · 2024 ACS · 42 SHOWN OF 42

Highest British population share, Idaho counties

Idaho counties ranked by the share of all residents who are British ancestry (2024 American Community Survey). A concentration measure: British residents as a percentage of total population. This list covers the 42 counties in Idaho that qualify, ranked against each other statewide. The median across all 42 is 0.4%. Biggest climber in the top 100 since 2020: Nez Perce County, ID, up 25 places to #8.

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IdahoAll states All rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPBRITISH SHAREVS 2010

01Madison County, IDID55,1721.3%−0.5 pts

02▲7Bonneville County, IDID135,7711.0%+0.3 pts

03▲24Valley County, IDID12,8311.0%+0.4 pts

04▲4Bingham County, IDID51,1531.0%+0.7 pts

05▲2Bonner County, IDID54,4200.9%+0.2 pts

06▲9Bannock County, IDID91,5910.8%+0.1 pts

07▲9Ada County, IDID546,1410.7%0.0 pts

08▲25Nez Perce County, IDID42,9050.6%+0.3 pts

09▲13Boundary County, IDID13,9970.6%+0.5 pts

10▼6Teton County, IDID13,2540.6%−0.2 pts

11▲21Blaine County, IDID25,5170.6%−0.7 pts

12▲19Oneida County, IDID5,0850.5%−0.7 pts

13▲12Clearwater County, IDID9,1180.5%0.0 pts

14▼9Custer County, IDID4,6360.5%+0.2 pts

15▲11Elmore County, IDID29,4650.5%−0.2 pts

16▲13Canyon County, IDID275,1230.5%0.0 pts

17Clark County, IDID7830.5%–

18▼4Cassia County, IDID26,3970.4%+0.1 pts

19▼13Gem County, IDID21,7730.4%−0.2 pts

20▲14Twin Falls County, IDID97,5390.4%−0.1 pts

21▼18Franklin County, IDID15,8890.4%−0.9 pts

22▼9Kootenai County, IDID191,8640.4%+0.1 pts

23▼13Shoshone County, IDID14,1300.4%+0.4 pts

24▼1Minidoka County, IDID22,9110.4%−0.1 pts

25▼1Jefferson County, IDID35,2970.4%−0.4 pts

26▲15Camas County, IDID1,3160.4%–

27▼9Latah County, IDID41,8420.4%−0.4 pts

28Fremont County, IDID14,2080.3%0.0 pts

29▲10Boise County, IDID8,5450.3%−1.3 pts

30▲13Butte County, IDID2,7830.3%−0.7 pts

31▼1Jerome County, IDID26,3620.3%−0.5 pts

32▼20Caribou County, IDID7,2520.3%0.0 pts

33▼12Lincoln County, IDID5,6030.3%–

34▼17Idaho County, IDID17,8740.2%+0.1 pts

35▼33Lemhi County, IDID8,4740.2%−0.2 pts

36▲2Lewis County, IDID3,7040.2%0.0 pts

37▼26Owyhee County, IDID12,6610.2%−0.5 pts

38▼1Washington County, IDID11,5830.1%–

39▼19Payette County, IDID27,8240.1%−0.1 pts

40▼4Gooding County, IDID16,4460.1%−0.7 pts

41▼6Benewah County, IDID10,5080.1%−0.3 pts

42▼23Bear Lake County, IDID6,7270.1%−0.4 pts

SHOWING 1–42 OF 42

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