| Place Name | Millbury |
| Place Type | Town |
| ZIP Code(s) | 01527 |
| County | Worcester County |
| Area Code(s) | 508,774 |
| Timezone | Eastern Standard Time (EST) |
| Population (2021) | 13,827 |
| Majority Ethnicity | White 92.19% |
| Metro/Micro Stats Area | Worcester, MA-CT |
| US Congressional District(s) | Massachusetts 2nd |
| State House Districts | 7th Worcester |
| State Senate Districts | Second Worcester |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 92.19% |
| African American | 1.44% |
| Hispanic | 0.17% |
| Asian | 4.01% |
| Native American | 0.25% |
| Hawaiin/Pacific Islander | 1.94% |