by Kristen Carney
Updated: June 20, 2024
The most populous counties in Connecticut are Capitol Planning Region with 975,328, Western Connecticut Planning Region at 623,907, South Central Connecticut Planning Region with 568,158, Naugatuck Valley Planning Region at 456,128, and Greater Bridgeport Planning Region with 327,651. You can get the most current Census population data for all 9 Connecticut counties, sorted from the most populous counties in Connecticut to the least, according to the 2023 Population Estimates Program.
Sure, you can copy this list right into your favorite spreadsheet tool. Or save yourself formatting headaches and grab the latest Connecticut counties population data as a ready-to-use Excel™ file below. It's time to stop searching and start digging into data!
Rank | County | Population |
---|---|---|
1 | Capitol Planning Region | 975,328 |
2 | Western Connecticut Planning Region | 623,907 |
3 | South Central Connecticut Planning Region | 568,158 |
4 | Naugatuck Valley Planning Region | 456,128 |
5 | Greater Bridgeport Planning Region | 327,651 |
6 | Southeastern Connecticut Planning Region | 279,634 |
7 | Lower Connecticut River Valley Planning Region | 176,215 |
8 | Northwest Hills Planning Region | 113,463 |
9 | Northeastern Connecticut Planning Region | 96,692 |
United States Census Bureau. Annual Estimates of the Resident Population: April 1, 2020 to July 1, 2023. Population Division. May 2024. |
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