| Place Name | Leominster |
| Place Type | City |
| ZIP Code(s) | 01453 |
| County | Worcester County |
| Area Code(s) | 351,978 |
| Timezone | Eastern Standard Time (EST) |
| Population (2022) | 40,879 |
| Population Growth Rate (2010-19) | 7.42% |
| Majority Ethnicity | White 75.02% |
| Metro/Micro Stats Area | Worcester, MA-CT |
| US Congressional District(s) | Massachusetts 2nd |
| State House Districts | 4th Worcester |
| State Senate Districts | Worcester and Middlesex |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 75.02% |
| African American | 6.39% |
| Hispanic | 0.12% |
| Asian | 3.4% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 15.06% |