Ranking of Idaho Counties By Percentage of Population that are Non-Hispanic White in 2018

Updated on June 18, 2025.

Based on the US Census Vintage data estimates, in 2018, among all Idaho counties, Lemhi County had the highest percentage of its population who identified their ethnicity as Non-Hispanic White (93.48%), followed by Oneida County (93.39%), and Bear Lake County (93.3%).

The chart below shows the top 10 counties, and the table below shows the ranking of all Idaho counties.

You can see similar ranking information for other racial and ethnicity groups in the United States.

You can also see similar information for other states, and also the ranking of all counties in the United States.

See this for other years:
Ranking of Idaho Counties By Percentage of Pop. that are Non-Hispanic White in 2018
Lemhi
Oneida
Bear Lake
Bonner
Valley
Caribou
Custer
Shoshone
Butte
Franklin
Ranking of Idaho Counties By Percentage of Pop. that are Non-Hispanic White in 2018
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Rank County % of County Population
1 Lemhi County 93.48
2 Oneida County 93.39
3 Bear Lake County 93.3
4 Bonner County 92.82
5 Valley County 92.1
6 Caribou County 91.67
7 Custer County 91.51
8 Shoshone County 91.24
9 Butte County 91.2
10 Franklin County 91.16
11 Adams County 91.01
12 Idaho County 90.94
13 Kootenai County 90.55
14 Boise County 90.19
15 Boundary County 90.13
16 Clearwater County 89.83
17 Latah County 88.67
18 Madison County 88.4
19 Camas County 88.25
20 Gem County 87.72
21 Jefferson County 86.88
22 Nez Perce County 86.82
23 Fremont County 85.35
24 Benewah County 84.75
25 Ada County 84.56
26 Lewis County 83.96
27 Bannock County 83.41
28 Bonneville County 82.91
29 Teton County 81.34
30 Washington County 79.25
31 Twin Falls County 78.6
32 Payette County 78.48
33 Blaine County 74.19
34 Bingham County 73.76
35 Elmore County 72.55
36 Canyon County 70.4
37 Cassia County 69.83
38 Owyhee County 68.77
39 Gooding County 67.2
40 Lincoln County 65.84
41 Minidoka County 62.33
42 Power County 61.34
43 Jerome County 60.86
44 Clark County 51.48