Ranking of Idaho Counties By 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. Among all Idaho counties, Ada County had the highest population with Czech ancestry (1.85K), followed by Canyon County (653), and Kootenai County (481).

The chart and table below shows the top 10 counties with high number of people with 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 Population with Czech Ancestry in 2021
Ada County
Canyon County
Kootenai County
Bonneville County
Twin Falls County
Latah County
Bonner County
Blaine County
Idaho County
Jerome County
Ranking of Idaho Counties By Population with Czech Ancestry in 2021
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Rank County Population
1 Ada County 1847
2 Canyon County 653
3 Kootenai County 481
4 Bonneville County 384
5 Twin Falls County 354
6 Latah County 172
7 Bonner County 145
8 Blaine County 134
9 Idaho County 115
10 Jerome County 106
11 Teton County 104
12 Nez Perce County 102
13 Payette County 85
14 Jefferson County 70
14 Shoshone County 70
15 Bannock County 64
16 Power County 54
17 Valley County 41
18 Gooding County 36
19 Madison County 32
19 Owyhee County 32
20 Gem County 30
21 Benewah County 28
22 Bingham County 25
22 Cassia County 25
23 Elmore County 20
24 Adams County 15
25 Lincoln County 14
26 Clearwater County 11
26 Lewis County 11
27 Caribou County 7
28 Boundary County 4
28 Custer County 4
28 Franklin County 4
29 Minidoka County 2
30 Camas County 1
30 Lemhi County 1
30 Washington County 1