Ranking of Connecticut Counties By Population with American Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 132.32K people in Connecticut with American ancestry. Among all Connecticut counties, Fairfield County had the highest population with American ancestry (41.51K), followed by Hartford County (33.87K), and New Haven County (25.06K).
The chart and table below shows the top 8 counties with high number of people with American 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 Population with American Ancestry in 2021
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| Rank | County | Population |
|---|---|---|
| 1 | Fairfield County | 41508 |
| 2 | Hartford County | 33873 |
| 3 | New Haven County | 25062 |
| 4 | New London County | 9152 |
| 5 | Litchfield County | 7580 |
| 6 | Middlesex County | 7465 |
| 7 | Tolland County | 4576 |
| 8 | Windham County | 3107 |
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