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County · Connecticut
Naugatuck Valley Planning Region
462,220Population
2.7 %Change since 2020
3,744Net migration
4.5 %Unemployment rate
Facts
- Population
- 462,220 (2024)
- Change since 2020
- 2.7 %
- Net migration
- 3,744 (2023)
- Unemployment rate
- 4.5 % (2025)
- State
- Connecticut
- Population base, April 2020
- 450,166 (2020)
- Births
- 4,392 (2023)
- Births per 1,000 residents, 2023
- 9.5
- Deaths
- 4,246 (2023)
- Deaths per 1,000 residents, 2023
- 9.2
- Natural change, 2023
- 146
- International migration
- 2,822 (2023)
- Domestic migration
- 922 (2023)
- Net migration per 1,000, 2023
- 8.1
- Postal code
- CT
- FIPS code
- 09140
Sources: US Census Bureau — Population Estimates, Bureau of Labor Statistics — LAUS
Unemployment rate, annual average
| Period | Value |
|---|---|
| 2025 | 4.5 % |
| 2024 | 3.8 % |
| 2023 | 3.7 % |
| 2022 | 4.5 % |
| 2021 | 7.0 % |
| 2020 | 8.5 % |
| 2019 | 4.0 % |
| 2018 | 4.4 % |
| 2017 | 4.9 % |
| 2016 | 5.4 % |
| 2015 | 6.4 % |
| 2014 | 7.5 % |
Population estimates, 2020–2024
| Period | Value |
|---|---|
| 2024 | 462,220 |
| 2023 | 457,609 |
| 2022 | 453,868 |
| 2021 | 452,095 |
| 2020 | 449,055 |