| Place Name | Markleville |
| Place Type | Town |
| ZIP Code(s) | 46056 |
| County | Madison County |
| Area Code(s) | 765 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 488 |
| Population Growth Rate (2010-19) | -8.33% |
| Majority Ethnicity | White 95.41% |
| Metro/Micro Stats Area | Indianapolis-Carmel-Anderson, IN |
| US Congressional District(s) | Indiana 5th |
| State House Districts | 53 |
| State Senate Districts | 26 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 95.41% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 4.59% |