Ranking of Idaho Counties By Percentage of Population with Czech Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 5.28K people in Idaho with Czech ancestry (0.29% of Idaho population). Among all Idaho counties, Teton County had the highest percentage of its population with Czech ancestry (0.91%), followed by Idaho County (0.70%), and Power County (0.69%).

The chart and table below shows the top 10 counties with high percentage of its population having Czech ancestry.

You can see similar information for other states and for other ancestry groups in Idaho.

Data Source: US Census Bureau.
Ranking of Idaho Counties By Percentage of Population with Czech Ancestry in 2021
Teton County
Idaho County
Power County
Blaine County
Shoshone County
Jerome County
Latah County
Twin Falls County
Ada County
Valley County
Ranking of Idaho Counties By Percentage of Population with Czech Ancestry in 2021
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Rank County Percentage of Pop. (%)
1 Teton County 0.91
2 Idaho County 0.70
3 Power County 0.69
4 Blaine County 0.56
5 Shoshone County 0.53
6 Jerome County 0.44
6 Latah County 0.44
7 Twin Falls County 0.40
8 Ada County 0.38
9 Valley County 0.36
10 Adams County 0.35
11 Payette County 0.34
12 Bonneville County 0.32
13 Bonner County 0.31
14 Lewis County 0.30
15 Benewah County 0.29
15 Canyon County 0.29
15 Kootenai County 0.29
16 Lincoln County 0.27
16 Owyhee County 0.27
17 Nez Perce County 0.24
18 Gooding County 0.23
18 Jefferson County 0.23
19 Gem County 0.16
20 Clearwater County 0.13
21 Camas County 0.10
21 Caribou County 0.10
21 Cassia County 0.10
22 Custer County 0.09
23 Bannock County 0.07
23 Elmore County 0.07
24 Madison County 0.06
25 Bingham County 0.05
26 Boundary County 0.03
26 Franklin County 0.03
27 Lemhi County 0.01
27 Minidoka County 0.01
27 Washington County 0.01