Byrnes Mill city, Missouri
Official LSAD Designation: Byrnes Mill city • Census GEOID: 2910240
• Jefferson County
Demographics & Population Profile
Population and demographics for Byrnes Mill city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 3,183 | — | 2025 | Census |
| Median Age | 37.9 yrs | ±4.6 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 1,200 | ±131 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).