| Place Name | Williamstown |
| Place Type | City |
| ZIP Code(s) | 26187 |
| County | Wood County |
| Area Code(s) | 304,681 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 2,911 |
| Population Growth Rate (2010-19) | 3.06% |
| Majority Ethnicity | White 99.33% |
| Metro/Micro Stats Area | Parkersburg-Vienna, WV |
| US Congressional District(s) | West Virginia 1st |
| House of Delegates Districts | 8 |
| State Senate Districts | 3 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 99.33% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0.67% |