| Place Name | St. Clair Township (Butler County) |
| Place Type | Township |
| ZIP Code(s) | 45011 45013 45014 45067 |
| County | Butler County |
| Area Code(s) | 283,513 |
| Timezone | Eastern Standard Time (EST) |
| Population (2021) | 6,726 |
| Majority Ethnicity | White 96.44% |
| Metro/Micro Stats Area | Cincinnati, OH-KY-IN |
| US Congressional District(s) | Ohio 8th |
| State House Districts | 51,53 |
| State Senate Districts | 4 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 96.44% |
| African American | 1.71% |
| Hispanic | 0.05% |
| Asian | 0.03% |
| Native American | 0.03% |
| Hawaiin/Pacific Islander | 1.74% |