| Place Name | St. Clair Township (Columbiana County) |
| Place Type | Township |
| ZIP Code(s) | 43920 44441 |
| County | Columbiana County |
| Area Code(s) | 234,330 |
| Timezone | Eastern Standard Time (EST) |
| Population (2021) | 7,797 |
| Majority Ethnicity | White 94.03% |
| Metro/Micro Stats Area | Salem, OH |
| US Congressional District(s) | Ohio 6th |
| State House Districts | 5 |
| State Senate Districts | 33 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 94.03% |
| African American | 5.97% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |