RANKING · 2024 ACS · 44 SHOWN OF 44

Highest Irish population share, Idaho counties

Idaho counties ranked by the share of all residents who are Irish ancestry (2024 American Community Survey). A concentration measure: Irish 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 8.9%. Biggest climber in the top 100 since 2020: Camas County, ID, up 37 places to #1.

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SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPIRISH SHAREVS 2010

01▲37Camas County, IDID1,31617.1%+8.3 pts

02▼1Valley County, IDID12,83117.1%+4.2 pts

03▲9Lewis County, IDID3,70415.6%−0.9 pts

04▼1Adams County, IDID5,01313.9%−0.7 pts

05▲8Lemhi County, IDID8,47413.9%+0.9 pts

06▼4Shoshone County, IDID14,13013.3%−4.3 pts

07▼3Bonner County, IDID54,42013.2%−2.1 pts

08▲1Benewah County, IDID10,50813.0%−4.5 pts

09▼1Washington County, IDID11,58312.6%−2.2 pts

10▲5Boise County, IDID8,54512.2%+1.3 pts

11Idaho County, IDID17,87412.1%−4.5 pts

12▼2Latah County, IDID41,84212.0%−3.3 pts

13▼7Kootenai County, IDID191,86412.0%−3.3 pts

14Ada County, IDID546,14111.4%−0.4 pts

15▼10Clearwater County, IDID9,11811.2%−6.6 pts

16▲4Nez Perce County, IDID42,90510.9%−3.6 pts

17▲6Boundary County, IDID13,99710.7%−0.5 pts

18▼11Custer County, IDID4,63610.4%−9.0 pts

19▲2Payette County, IDID27,82410.0%−0.5 pts

20▼4Elmore County, IDID29,4659.3%−3.0 pts

21▲4Fremont County, IDID14,2089.1%+1.5 pts

22▼3Bannock County, IDID91,5918.9%−0.3 pts

23▲1Twin Falls County, IDID97,5398.8%−2.0 pts

24▲5Blaine County, IDID25,5178.8%−2.6 pts

25▼7Gem County, IDID21,7738.5%−3.8 pts

26Canyon County, IDID275,1238.3%−0.5 pts

27▲3Power County, IDID8,2467.4%+2.9 pts

28▼11Teton County, IDID13,2547.2%−5.8 pts

29▼2Owyhee County, IDID12,6617.2%−2.2 pts

30▼8Gooding County, IDID16,4466.8%−4.5 pts

31▼3Jerome County, IDID26,3626.3%−0.7 pts

32▼1Bonneville County, IDID135,7716.1%−1.8 pts

33▲2Lincoln County, IDID5,6035.4%−1.5 pts

34▲8Caribou County, IDID7,2525.2%+0.2 pts

35▼1Jefferson County, IDID35,2975.0%−0.3 pts

36▲1Bear Lake County, IDID6,7275.0%+0.6 pts

37▼1Minidoka County, IDID22,9114.7%−1.9 pts

38▲6Franklin County, IDID15,8894.5%+1.3 pts

39▲1Madison County, IDID55,1724.3%−1.2 pts

40▲3Oneida County, IDID5,0854.1%−0.3 pts

41▼2Bingham County, IDID51,1534.1%−0.9 pts

42▼9Butte County, IDID2,7833.9%−5.2 pts

43▼2Cassia County, IDID26,3973.7%−1.4 pts

44▼12Clark County, IDID7833.4%+1.1 pts

SHOWING 1–44 OF 44

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