Connecticut / Counties by Population
Below are the 8 Connecticut counties sorted by population from 1 to 8 . The population data are from the 2020 American Community Survey. You can copy and paste this list directly into your favorite spreadsheet program. Don't you just adore lovely numbers listed nicely in columns & rows? We do!
Looking for a list of cities, counties or zips in Connecticut?
Get a spreadsheet with the most current population, income, housing demographics and more for all cities, counties or zips in Connecticut. Learn more.
Rank | County | Population |
---|---|---|
1 | Fairfield County | 944,306 |
2 | Hartford County | 892,153 |
3 | New Haven County | 855,733 |
4 | New London County | 266,868 |
5 | Litchfield County | 181,143 |
6 | Middlesex County | 162,742 |
7 | Tolland County | 150,947 |
8 | Windham County | 116,657 |
United States Census Bureau. B01001 SEX BY AGE, 2020 American Community Survey 5-Year Estimates. U.S. Census Bureau, American Community Survey Office. Web. 17 March 2022. http://www.census.gov/. |