10 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 59254 | Plentywood | 1,822 |
| 59275 | Westby | 436 |
| 59247 | Medicine Lake | 310 |
| 59211 | Antelope | 298 |
| 59256 | Raymond | 258 |
| 59258 | Reserve | 184 |
| 59219 | Dagmar | 144 |
| 59257 | Redstone | 132 |
| 59252 | Outlook | 70 |
| 59242 | Homestead | 55 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 10 ZCTAs in Sheridan County, Montana (US Census).