Ranking of Connecticut Counties By Percentage of Population with Northern European Ancestry in 2021

Based on the US Census ACS-5Yrs estimates, in 2021, there were 3.98K people in Connecticut with Northern European ancestry (0.11% of Connecticut population). Among all Connecticut counties, Middlesex County had the highest percentage of its population with Northern European ancestry (0.20%), followed by Litchfield County (0.19%), and New London County (0.16%).

The chart and table below shows the top 8 counties with high percentage of its population having Northern European ancestry.

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