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

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 845 people in Idaho with Icelander ancestry (0.05% of Idaho population). Among all Idaho counties, Teton County had the highest percentage of its population with Icelander ancestry (0.21%), followed by Boise County (0.20%), and Cassia County (0.18%).

The chart and table below shows the top 10 counties with high percentage of its population having Icelander 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 Icelander Ancestry in 2021
Teton County
Boise County
Cassia County
Bear Lake County
Canyon County
Ada County
Bonner County
Fremont County
Benewah County
Latah County
Ranking of Idaho Counties By Percentage of Population with Icelander Ancestry in 2021
0 of 0
Rank County Percentage of Pop. (%)
1 Teton County 0.21
2 Boise County 0.20
3 Cassia County 0.18
4 Bear Lake County 0.16
5 Canyon County 0.08
6 Ada County 0.07
6 Bonner County 0.07
7 Fremont County 0.05
8 Benewah County 0.04
8 Latah County 0.04
8 Madison County 0.04
9 Bannock County 0.03
9 Bonneville County 0.03
9 Jefferson County 0.03
9 Kootenai County 0.03
9 Lewis County 0.03
10 Bingham County 0.02
10 Idaho County 0.02
10 Shoshone County 0.02
10 Twin Falls County 0.02
11 Payette County 0.004