| Place Name | Mount Summit |
| Place Type | Town |
| ZIP Code(s) | 47362 |
| County | Henry County |
| Area Code(s) | 765 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 390 |
| Population Growth Rate (2010-19) | -2.84% |
| Majority Ethnicity | White 98.14% |
| Metro/Micro Stats Area | New Castle, IN |
| US Congressional District(s) | Indiana 6th |
| State House Districts | 54 |
| State Senate Districts | 26 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 98.14% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.86% |