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

Based on the US Census ACS-5Yrs estimates, in 2021, there were 55.40K people in Idaho with European ancestry (3.06% of Idaho population). Among all Idaho counties, Butte County had the highest percentage of its population with European ancestry (7.93%), followed by Madison County (5.97%), and Jefferson County (4.92%).

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

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