Weldon Spring city, Missouri
Official LSAD Designation: Weldon Spring city • Census GEOID: 2978314
• St. Charles County
Demographics & Population Profile
Population and demographics for Weldon Spring city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 5,301 | — | 2025 | Census |
| Median Age | 52.2 yrs | ±5.3 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 2,038 | ±119 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).