RANKING · 2020 CENSUS · 39 SHOWN OF 39

Highest Czech population share, Idaho counties · 2020

Idaho counties ranked by the share of all residents who are Czech ancestry (2020 American Community Survey). A concentration measure: Czech residents as a percentage of total population. This list covers the 39 counties in Idaho that qualify, ranked against each other statewide. The median across all 39 is 0.3%.

Czech Americans: full group profile →

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SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPCZECH SHAREVS 2010

01Teton County, IDID13,2541.3%+1.3 pts

02Blaine County, IDID25,5171.0%−0.3 pts

03Power County, IDID8,2460.7%+0.4 pts

04Boise County, IDID8,5450.6%+0.5 pts

05Shoshone County, IDID14,1300.6%0.0 pts

06Boundary County, IDID13,9970.5%−0.5 pts

07Valley County, IDID12,8310.5%+0.3 pts

08Canyon County, IDID275,1230.5%+0.1 pts

09Jerome County, IDID26,3620.5%+0.5 pts

10Kootenai County, IDID191,8640.4%−0.3 pts

11Owyhee County, IDID12,6610.4%+0.1 pts

12Latah County, IDID41,8420.4%−0.4 pts

13Benewah County, IDID10,5080.4%+0.4 pts

14Ada County, IDID546,1410.4%−0.3 pts

15Twin Falls County, IDID97,5390.3%−0.3 pts

16Lewis County, IDID3,7040.3%−0.4 pts

17Bonneville County, IDID135,7710.3%+0.1 pts

18Idaho County, IDID17,8740.3%−0.2 pts

19Clearwater County, IDID9,1180.3%−0.5 pts

20Gooding County, IDID16,4460.3%−0.4 pts

21Payette County, IDID27,8240.3%−0.1 pts

22Nez Perce County, IDID42,9050.3%−0.2 pts

23Bear Lake County, IDID6,7270.3%−0.3 pts

24Adams County, IDID5,0130.2%+0.2 pts

25Bonner County, IDID54,4200.2%−0.1 pts

26Cassia County, IDID26,3970.2%−0.2 pts

27Elmore County, IDID29,4650.2%−0.4 pts

28Lincoln County, IDID5,6030.2%+0.1 pts

29Lemhi County, IDID8,4740.2%0.0 pts

30Bannock County, IDID91,5910.1%−0.4 pts

31Jefferson County, IDID35,2970.1%−0.1 pts

32Camas County, IDID1,3160.1%–

33Custer County, IDID4,6360.1%−1.2 pts

34Gem County, IDID21,7730.1%0.0 pts

35Bingham County, IDID51,1530.1%−0.5 pts

36Minidoka County, IDID22,9110.1%−1.3 pts

37Washington County, IDID11,5830.0%–

38Caribou County, IDID7,2520.0%−0.2 pts

39Fremont County, IDID14,2080.0%−0.1 pts

SHOWING 1–39 OF 39

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS