Post Offices List in Sheridan County, Montana:
| Antelope Post Office | 104 Main St, Antelope, MT 59211 |
| Dagmar Post Office | 205 W Central Ave, Dagmar, MT 59219 |
| Medicine Lake Post Office | 107 2nd Ave N, Medicine Lake, MT 59247 |
| Plentywood Post Office | 302 N Main St, Plentywood, MT 59254 |
| Raymond Post Office | 310 Raymond Rd, Raymond, MT 59256 |
| Reserve Post Office | 400 E Central Ave, Reserve, MT 59258 |
| Westby Post Office | 201 Main St, Westby, MT 59275 |
| Outlook Post Office | 202 Main St, Outlook, MT 59252 |