| Place Name | Belmont |
| Place Type | Census Designated Place |
| ZIP Code(s) | 02478 |
| County | Middlesex County |
| Area Code(s) | 617,857 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 24,759 |
| Population Growth Rate (2010-19) | 10.38% |
| Majority Ethnicity | White 76.08% |
| Metro/Micro Stats Area | Boston-Cambridge-Newton, MA-NH |
| US Congressional District(s) | Massachusetts 5th |
| State House Districts | 24th Middlesex |
| State Senate Districts | Second Suffolk and Middlesex |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 76.08% |
| African American | 1.19% |
| Hispanic | 0.07% |
| Asian | 18.44% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 4.22% |