| Place Name | Watertown Town |
| Place Type | City |
| ZIP Code(s) | 02135 02453 02458 02472 02478 |
| County | Middlesex County |
| Area Code(s) | 617,857 |
| Timezone | Eastern Standard Time (EST) |
| Population (2022) | 32,073 |
| Population Growth Rate (2010-19) | 10.70% |
| Majority Ethnicity | White 76.57% |
| Metro/Micro Stats Area | Boston-Cambridge-Newton, MA-NH |
| US Congressional District(s) | Massachusetts 5th |
| State House Districts | 10th Middlesex,29th Middlesex |
| State Senate Districts | Second Suffolk and Middlesex |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 76.57% |
| African American | 3.71% |
| Hispanic | 0.35% |
| Asian | 11.95% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 7.41% |