Post Offices List in Garfield County, Montana:
| Brusett Post Office | 2198 Brusett Rd, Brusett, MT 59318 |
| Cohagen Post Office | 5928 Highway 59 N Ste 1, Cohagen, MT 59322 |
| Jordan Post Office | 547 Main St, Jordan, MT 59337 |
| Sand Springs Post Office | 3198 Highway 200 W, Sand Springs, MT 59077 |