Lancaster city, Ohio
Official LSAD Designation: Lancaster city • Census GEOID: 3941720
• Fairfield County
Demographics & Population Profile
Population and demographics for Lancaster city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 41,956 | — | 2025 | Census |
| Median Age | 37.4 yrs | ±1.7 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 16,857 | ±485 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).