Post Offices List in Sherman County, Oregon:
| Grass Valley Post Office | 114 N MIll St, Grass Valley, OR 97029 |
| Kent Post Office | 95097 Dobie Point Ln, Kent, OR 97033 |
| Moro Post Office | 109 1st St, Moro, OR 97039 |
| Rufus Post Office | 308 Fowler St, Rufus, OR 97050 |
| Wasco Post Office | 1024 Clark St, Wasco, OR 97065 |