Lake Mills city, Wisconsin
Official LSAD Designation: Lake Mills city • Census GEOID: 5541675
• Jefferson County
Demographics & Population Profile
Population and demographics for Lake Mills city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 6,655 | — | 2025 | Census |
| Median Age | 40.3 yrs | ±2.8 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 2,581 | ±262 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).