| Place Name | St. Leon |
| Place Type | Town |
| ZIP Code(s) | 47012 47060 |
| County | Dearborn County |
| Area Code(s) | 812,930 |
| Timezone | (UTC) |
| Population (2022) | 782 |
| Population Growth Rate (2010-19) | -2.65% |
| Majority Ethnicity | White 100% |
| Metro/Micro Stats Area | Cincinnati, OH-KY-IN |
| US Congressional District(s) | Indiana 6th |
| State House Districts | 68 |
| State Senate Districts | 27 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 100% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |