| Place Name | Williamstown (town) |
| Place Type | Town |
| ZIP Code(s) | 01247 01267 |
| County | Berkshire County |
| Area Code(s) | 413 |
| Timezone | Eastern Standard Time (EST) |
| Population (2021) | 7,678 |
| Majority Ethnicity | White 85.56% |
| Metro/Micro Stats Area | Pittsfield, MA |
| US Congressional District(s) | Massachusetts 1st |
| State House Districts | 1st Berkshire |
| State Senate Districts | Berkshire, Hampshire, Franklin and Hampden |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 85.56% |
| African American | 3.52% |
| Hispanic | 0.35% |
| Asian | 6.44% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 4.13% |