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

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 13.91K people in Connecticut with Canadian ancestry (0.39% of Connecticut population). Among all Connecticut counties, Windham County had the highest percentage of its population with Canadian ancestry (0.53%), followed by Litchfield County (0.51%), and Hartford County (0.45%).

The chart and table below shows the top 8 counties with high percentage of its population having Canadian 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 Canadian Ancestry in 2021
Windham County
Litchfield County
Hartford County
New London County
Middlesex County
New Haven County
Tolland County
Fairfield County
Ranking of Connecticut Counties By Percentage of Population with Canadian Ancestry in 2021
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Rank County Percentage of Pop. (%)
1 Windham County 0.53
2 Litchfield County 0.51
3 Hartford County 0.45
4 New London County 0.44
5 Middlesex County 0.36
6 New Haven County 0.35
6 Tolland County 0.35
7 Fairfield County 0.31