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

Based on the US Census ACS-5Yrs estimates, in 2021, there were 21.74K people in Idaho with Polish ancestry (1.20% of Idaho population). Among all Idaho counties, Boise County had the highest percentage of its population with Polish ancestry (2.40%), followed by Adams County (1.97%), and Latah County (1.88%).

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

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