Chesterfield city, Missouri
Official LSAD Designation: Chesterfield city • Census GEOID: 2913600
• St. Louis County
Demographics & Population Profile
Population and demographics for Chesterfield city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 49,309 | — | 2025 | Census |
| Median Age | 47.2 yrs | ±1.3 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 20,811 | ±517 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).