| Place Name | Greenback |
| Place Type | City |
| ZIP Code(s) | 37742 |
| County | Loudon County |
| Area Code(s) | 865 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 1,076 |
| Population Growth Rate (2010-19) | 3.57% |
| Majority Ethnicity | White 97.85% |
| Metro/Micro Stats Area | Knoxville, TN |
| US Congressional District(s) | Tennessee 2nd |
| State House Districts | 21 |
| State Senate Districts | 5 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 97.85% |
| African American | 0.28% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.87% |