Leominster city, Massachusetts
Official LSAD Designation: Leominster city • Census GEOID: 2535075
• Worcester County
Demographics & Population Profile
Population and demographics for Leominster city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 44,194 | — | 2025 | Census |
| Median Age | 43.3 yrs | ±2.2 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 18,483 | ±672 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).