Ranking of Illinois Counties By Percentage of the Voting-age Population that Identified as Non-Hispanic from Census 2020

According to the data from the United States 2020 decennial Census, in April 2020, among all of Illinois counties, Greene County had the highest percentange of a county's voting-age population who identified as Non-Hispanic (not hispanic or latino) (99.32%), followed by Jasper County (99.24%), and Shelby County (99.23%).

The chart below shows the top 10 counties, and the table below shows the ranking of all Illinois counties based on the percentage of each county's voting-age population that identified as non-hispanic.

You can see similar ranking information for other states and also for the different racial groups in Illinois.