Post Offices List in Big Stone County, Minnesota:
| Beardsley Post Office | 116 Main St N, Beardsley, MN 56211 |
| Clinton Post Office | 200 Main St, Clinton, MN 56225 |
| Correll Post Office | 110 County Road 25 N, Correll, MN 56227 |
| Graceville Post Office | 327 Studdart Ave, Graceville, MN 56240 |
| Odessa Post Office | 106 County Road 28 E, Odessa, MN 56276 |
| Ortonville Post Office | 104 Jackson Ave, Ortonville, MN 56278 |