Ranking of Idaho Counties By Population with English Ancestry in 2021

Based on the US Census ACS-5Yrs estimates, in 2021, there were 321.04K people in Idaho with English ancestry. Among all Idaho counties, Ada County had the highest population with English ancestry (94.12K), followed by Canyon County (32.90K), and Bonneville County (26.29K).

The chart and table below shows the top 10 counties with high number of people with English ancestry.

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