Williamson village, Illinois
Official LSAD Designation: Williamson village • Census GEOID: 1781815
• Madison County
Demographics & Population Profile
Population and demographics for Williamson village.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 175 | — | 2025 | Census |
| Median Age | 51 yrs | ±11.3 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 81 | ±26 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).