| Place Name | Greentop |
| Place Type | City |
| ZIP Code(s) | 63546 |
| County | Schuyler County |
| Area Code(s) | 660 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 365 |
| Population Growth Rate (2010-19) | -12.22% |
| Majority Ethnicity | White 99.13% |
| Metro/Micro Stats Area | Kirksville, MO |
| US Congressional District(s) | Missouri 6th |
| State House Districts | 4 |
| State Senate Districts | 18 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 99.13% |
| African American | 0.17% |
| Hispanic | 0.69% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |