St. Louis city, Missouri
Official LSAD Designation: St. Louis city • Census GEOID: 2965000
• St. Louis city
Demographics & Population Profile
Population and demographics for St. Louis city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 278,144 | — | 2025 | Census |
| Median Age | 36.8 yrs | ±0.2 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 144,891 | ±1,211 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).