| Place Name | Williamstown |
| Place Type | City |
| ZIP Code(s) | 41097 |
| County | Grant County |
| Area Code(s) | 859 |
| Timezone | Eastern Standard Time (EST) |
| Population (2022) | 3,996 |
| Population Growth Rate (2010-19) | -0.79% |
| Majority Ethnicity | White 99.34% |
| Metro/Micro Stats Area | Cincinnati, OH-KY-IN |
| US Congressional District(s) | Kentucky 4th |
| State House Districts | 61 |
| State Senate Districts | 17 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 99.34% |
| African American | 0.66% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |