Ranking of Connecticut Counties By Total Population from Census 2020
Updated on February 7, 2023.
According to the data from the US 2020 Census, the most populated Connecticut county as at April 2020 was Fairfield County (957.42K), followed by Hartford County (899.50K), and New Haven County (864.84K).
The chart below shows the top 8 most populated counties, and the table below shows the ranking of all the counties in the state of Connecticut.
You can also see the ranking of counties by population for other states as well as for the whole United States.
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Related Topics: Connecticut Census 2020 Topic List.
Data Source: US Census Bureau, 2020 Census.
Ranking of Connecticut Counties By Total Population from Census 2020
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| Rank | County | Population |
|---|---|---|
| 1 | Fairfield County | 957419 |
| 2 | Hartford County | 899498 |
| 3 | New Haven County | 864835 |
| 4 | New London County | 268555 |
| 5 | Litchfield County | 185186 |
| 6 | Middlesex County | 164245 |
| 7 | Tolland County | 149788 |
| 8 | Windham County | 116418 |