| Place Name | St. Clairsville |
| Place Type | City |
| ZIP Code(s) | 43950 |
| County | Belmont County |
| Area Code(s) | 220,740 |
| Timezone | Eastern Standard Time (EST) |
| Population (2022) | 5,169 |
| Population Growth Rate (2010-19) | -1.70% |
| Majority Ethnicity | White 94.75% |
| Metro/Micro Stats Area | Wheeling, WV-OH |
| US Congressional District(s) | Ohio 6th |
| State House Districts | 95 |
| State Senate Districts | 30 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 94.75% |
| African American | 2.65% |
| Hispanic | 0% |
| Asian | 0.57% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 2.04% |