RANKING · 2024 ACS · 44 SHOWN OF 44

Largest Scotch-Irish population, Idaho counties

Idaho counties ranked by the number of residents who are Scotch-Irish 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 44 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

RANKPLACESTATEPOPSCOTCH-IRISH POPULATIONVS 2000

01Ada County, IDID546,1414,507–

02Kootenai County, IDID191,8642,265–

03Canyon County, IDID275,1231,702–

04Bonneville County, IDID135,771959–

05Bannock County, IDID91,591776–

06Bonner County, IDID54,420643–

07Latah County, IDID41,842530–

08Twin Falls County, IDID97,539481–

09Blaine County, IDID25,517445–

10Gem County, IDID21,773373–

11Idaho County, IDID17,874344–

12Jefferson County, IDID35,297317–

13Bingham County, IDID51,153256–

14Elmore County, IDID29,465217–

15Nez Perce County, IDID42,905214–

16Jerome County, IDID26,362212–

17Shoshone County, IDID14,130205–

18Lemhi County, IDID8,474177–

19Madison County, IDID55,172172–

20Owyhee County, IDID12,661156–

21Cassia County, IDID26,397137–

22Teton County, IDID13,254128–

23Benewah County, IDID10,508119–

24Payette County, IDID27,824119–

25Minidoka County, IDID22,911113–

26Washington County, IDID11,583101–

27Gooding County, IDID16,44688–

28Clearwater County, IDID9,11884–

29Boundary County, IDID13,99784–

30Custer County, IDID4,63682–

31Fremont County, IDID14,20879–

32Boise County, IDID8,54572–

33Bear Lake County, IDID6,72769–

34Lincoln County, IDID5,60369–

35Valley County, IDID12,83157–

36Franklin County, IDID15,88941–

37Adams County, IDID5,01335–

38Caribou County, IDID7,25230–

39Lewis County, IDID3,70425–

40Clark County, IDID78320–

41Camas County, IDID1,31613–

42Oneida County, IDID5,0859–

43Butte County, IDID2,7836–

44Power County, IDID8,2464–

SHOWING 1–44 OF 44

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