RANKING · 2024 ACS · 37 SHOWN OF 37

Highest Czech population share, Idaho counties

Idaho counties ranked by the share of all residents who are Czech ancestry (2024 American Community Survey). A concentration measure: Czech residents as a percentage of total population. This list covers the 37 counties in Idaho that qualify, ranked against each other statewide. The median across all 37 is 0.2%. Biggest climber in the top 100 since 2020: Gem County, ID, up 19 places to #15.

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SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPCZECH SHAREVS 2010

01▲2Power County, IDID8,2461.5%+1.3 pts

02▲16Idaho County, IDID17,8740.9%+0.3 pts

03▲18Payette County, IDID27,8240.8%+0.5 pts

04▲15Clearwater County, IDID9,1180.8%0.0 pts

05Oneida County, IDID5,0850.8%+0.7 pts

06▼4Blaine County, IDID25,5170.6%−0.7 pts

07▲15Nez Perce County, IDID42,9050.6%+0.1 pts

08Madison County, IDID55,1720.5%+0.4 pts

09▲16Bonner County, IDID54,4200.5%+0.1 pts

10▲4Ada County, IDID546,1410.4%−0.3 pts

11▲4Twin Falls County, IDID97,5390.4%−0.3 pts

12▲16Lincoln County, IDID5,6030.4%+0.3 pts

13▼12Teton County, IDID13,2540.3%+0.3 pts

14▼2Latah County, IDID41,8420.3%−0.5 pts

15▲19Gem County, IDID21,7730.3%+0.2 pts

16▼8Canyon County, IDID275,1230.3%−0.1 pts

17▼7Kootenai County, IDID191,8640.2%−0.5 pts

18▲12Bannock County, IDID91,5910.2%−0.3 pts

19▲10Lemhi County, IDID8,4740.2%+0.1 pts

20▼15Shoshone County, IDID14,1300.2%−0.4 pts

21▼5Lewis County, IDID3,7040.2%−0.6 pts

22▼13Jerome County, IDID26,3620.2%+0.1 pts

23▲13Minidoka County, IDID22,9110.1%−1.2 pts

24Adams County, IDID5,0130.1%+0.1 pts

25▲13Caribou County, IDID7,2520.1%−0.1 pts

26▼13Benewah County, IDID10,5080.1%+0.1 pts

27▼10Bonneville County, IDID135,7710.1%−0.2 pts

28▼1Elmore County, IDID29,4650.1%−0.4 pts

29▼25Boise County, IDID8,5450.1%0.0 pts

30▼23Valley County, IDID12,8310.1%−0.2 pts

31▼20Owyhee County, IDID12,6610.1%−0.2 pts

32Franklin County, IDID15,8890.1%0.0 pts

33▼7Cassia County, IDID26,3970.1%−0.4 pts

34▼3Jefferson County, IDID35,2970.1%−0.2 pts

35Bingham County, IDID51,1530.0%−0.5 pts

36▲1Washington County, IDID11,5830.0%–

37▼17Gooding County, IDID16,4460.0%−0.7 pts

SHOWING 1–37 OF 37

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