Connecticut Citizen Population By County in 2023 (ACS-5Yrs)
Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2023, the citizen population for Connecticut was 3,351,135 and represented 93.13% of the total Connecticut population.
Among all Connecticut counties, Capitol Planning Region had the highest citizen population (910.04K), followed by Western Connecticut Planning Region (550.63K), and South Central Connecticut Planning Region (530.71K).
In terms of percentages, Northeastern Connecticut Planning Region had the highest percentage of its population being citizens (97.97%), followed by Lower Connecticut River Valley Planning Region (97.13%), and Northwest Hills Planning Region (96.50%).
The chart and table below shows the citizen population of each county and the percentage of each county's population that were citizens.
You can see similar information for other states and by state for the United States.
| County | Citizen Population | % of County Population |
|---|---|---|
| Capitol Planning Region | 910040 | 93.91 |
| Western Connecticut Planning Region | 550625 | 88.64 |
| South Central Connecticut Planning Region | 530705 | 93.63 |
| Naugatuck Valley Planning Region | 427550 | 94.53 |
| Greater Bridgeport Planning Region | 290885 | 89.15 |
| Southeastern Connecticut Planning Region | 268570 | 96.25 |
| Lower Connecticut River Valley Planning Region | 169965 | 97.13 |
| Northwest Hills Planning Region | 108905 | 96.50 |
| Northeastern Connecticut Planning Region | 93885 | 97.97 |
