Ranking of Connecticut Counties By Population with Polish Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 240.39K people in Connecticut with Polish ancestry. Among all Connecticut counties, Hartford County had the highest population with Polish ancestry (78.92K), followed by New Haven County (46.83K), and Fairfield County (44.50K).

The chart and table below shows the top 8 counties with high number of people with Polish 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 Population with Polish Ancestry in 2021
Hartford County
New Haven County
Fairfield County
New London County
Middlesex County
Litchfield County
Tolland County
Windham County
Ranking of Connecticut Counties By Population with Polish Ancestry in 2021
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Rank County Population
1 Hartford County 78923
2 New Haven County 46831
3 Fairfield County 44498
4 New London County 18974
5 Middlesex County 17253
6 Litchfield County 13307
7 Tolland County 12163
8 Windham County 8441