Millstadt village, Illinois
Official LSAD Designation: Millstadt village • Census GEOID: 1749386
• St. Clair County
Demographics & Population Profile
Population and demographics for Millstadt village.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 3,950 | — | 2025 | Census |
| Median Age | 47.1 yrs | ±2.7 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 1,619 | ±166 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).