Ranking of Connecticut Counties By Percentage of Population with Celtic Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 499 people in Connecticut with Celtic ancestry (0.01% of Connecticut population). Among all Connecticut counties, Litchfield County had the highest percentage of its population with Celtic ancestry (0.04%), followed by New London County (0.03%), and Fairfield County (0.02%).
The chart and table below shows the top 8 counties with high percentage of its population having Celtic 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 Celtic Ancestry in 2021
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| Rank | County | Percentage of Pop. (%) |
|---|---|---|
| 1 | Litchfield County | 0.04 |
| 2 | New London County | 0.03 |
| 3 | Fairfield County | 0.02 |
| 3 | Windham County | 0.02 |
| 4 | Hartford County | 0.01 |
| 4 | Middlesex County | 0.01 |
| 4 | New Haven County | 0.01 |
| 4 | Tolland County | 0.01 |