Founded in 1883, Roberts County is one of 66 counties in the state of South Dakota. Historically, Roberts County was formed from Grant County. The city of Sisseton is the county seat. With FIPS code of 109, Roberts County has a population of 10,163 and area of 1,101 square miles (2,852 km2).
List of all cities in Roberts County, SD alphabetically
| City/Town | Postal Code | Area Code |
| Agency Village, SD | 57262 | 605 |
| Claire City, SD | 57224 | 605 |
| Corona, SD | 57227 | 605 |
| Dry Wood Lake, SD | 57262 | 605 |
| Hammer, SD | 57255 | 605 |
| Linden Beach, SD | 57227 | 605 |
| Madsen Beach, SD | 57279 | 605 |
| New Effington, SD | 57255 | 605 |
| Ortley, SD | 57256 | 605 |
| Peever, SD | 57257 | 605 |
| Rosholt, SD | 57260 | 605 |
| Shady Beach, SD | 57227 | 605 |
| Sisseton, SD | 57262 | 605 |
| Sodak Park, SD | 57279 | 605 |
| Summit, SD | 57266 | 605 |
| Tekakwitha, SD | 57262 | 605 |
| Victor, SD | 57260 | 605 |
| Wilmot, SD | 57279 | 605 |