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Total Population in Connecticut, by County

Total Population for every county in Connecticut, ranked. The highest is Capitol Planning Region at 977,290 and the lowest is Northeastern Connecticut Planning Region at 96,312.

Connecticut: 3,624,508 · United States: 334,922,499 · median county in Connecticut: 329,259

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#County Total Population
1Capitol Planning Region977,290
2Western Connecticut Planning Region627,071
3South Central Connecticut Planning Region570,598
4Naugatuck Valley Planning Region454,969
5Greater Bridgeport Planning Region329,259
6Southeastern Connecticut Planning Region279,971
7Lower Connecticut River Valley Planning Region175,822
8Northwest Hills Planning Region113,216
9Northeastern Connecticut Planning Region96,312

Everyone living in the area, from the 5-year American Community Survey.

Source: ACS 2020-2024 5-Year Estimates, 2024.

Connecticut ranks 29th of 52 states for total population.

Total Population in other states

Other statistics for Connecticut by county