| Place Name | Casstown |
| Place Type | Village |
| ZIP Code(s) | 45312 |
| County | Miami County |
| Area Code(s) | 326,937 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 342 |
| Population Growth Rate (2010-19) | 1.12% |
| Majority Ethnicity | White 99.65% |
| Metro/Micro Stats Area | Dayton-Kettering, OH |
| US Congressional District(s) | Ohio 8th |
| State House Districts | 80 |
| State Senate Districts | 5 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 99.65% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0.35% |