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

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 306.53K people in Connecticut with English ancestry (8.50% of Connecticut population). Among all Connecticut counties, Litchfield County had the highest percentage of its population with English ancestry (12.74%), followed by New London County (12.54%), and Windham County (11.81%).

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

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

Data Source: US Census Bureau.
Ranking of Connecticut Counties By Percentage of Population with English Ancestry in 2021
Litchfield County
New London County
Windham County
Tolland County
Middlesex County
Hartford County
Fairfield County
New Haven County
Ranking of Connecticut Counties By Percentage of Population with English Ancestry in 2021
0 of 0
Rank County Percentage of Pop. (%)
1 Litchfield County 12.74
2 New London County 12.54
3 Windham County 11.81
4 Tolland County 11.46
5 Middlesex County 11.43
6 Hartford County 7.52
7 Fairfield County 7.41
8 New Haven County 7.05