Ansonia city, Connecticut
Official LSAD Designation: Ansonia city • Census GEOID: 0901150
• Naugatuck Valley Planning Region
Demographics & Population Profile
Population and demographics for Ansonia city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 19,216 | — | 2025 | Census |
| Median Age | 40.1 yrs | ±1.6 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 7,212 | ±480 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).