7 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 57262 | Sisseton | 5,043 |
| 57260 | Rosholt | 1,107 |
| 57279 | Wilmot | 981 |
| 57227 | Corona | 600 |
| 57255 | New Effington | 538 |
| 57257 | Peever | 531 |
| 57224 | Claire City | 176 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 7 ZCTAs in Roberts County, South Dakota (US Census).