Ranking of Connecticut Counties By Percentage of Population with British Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 19.47K people in Connecticut with British ancestry (0.54% of Connecticut population). Among all Connecticut counties, Fairfield County had the highest percentage of its population with British ancestry (0.71%), followed by Litchfield County (0.71%), and New London County (0.61%).
The chart and table below shows the top 8 counties with high percentage of its population having British ancestry.
You can see similar information for other states and for other ancestry groups in Connecticut.
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Related Topics: Connecticut ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census Bureau.
Ranking of Connecticut Counties By Percentage of Population with British Ancestry in 2021
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| Rank | County | Percentage of Pop. (%) |
|---|---|---|
| 1 | Fairfield County | 0.71 |
| 1 | Litchfield County | 0.71 |
| 2 | New London County | 0.61 |
| 3 | Middlesex County | 0.58 |
| 4 | Windham County | 0.54 |
| 5 | Tolland County | 0.52 |
| 6 | Hartford County | 0.46 |
| 7 | New Haven County | 0.37 |