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

Based on the US Census ACS-5Yrs estimates, in 2021, there were 36.64K people in Connecticut with European ancestry (1.02% of Connecticut population). Among all Connecticut counties, Tolland County had the highest percentage of its population with European ancestry (1.52%), followed by Litchfield County (1.50%), and Middlesex County (1.30%).

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

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