| County Name | Sully County |
| FIPS Code | 46119 |
| Population | 1373 |
| Unemployment Rate | 2.5% |
| Time Zone: | Central Daylight Time |
| List of Counties that Border Sully County, South Dakota |
|---|
| Dewey, SD |
| Hughes, SD |
| Hyde, SD |
| Potter, SD |
| Stanley, SD |
| Sully, SD |
| List of Cities/Towns in Sully County, South Dakota |
|---|
| Agar, SD |
| Cow Creek, SD |
| Onida, SD |