Post Offices List in Grainger County, Tennessee:
| Bean Station Post Office | 340 Main St, Bean Station, TN 37708 |
| Blaine Post Office | 1006 Rutledge Pike, Blaine, TN 37709 |
| Rutledge Post Office | 7841 Rutledge Pike, Rutledge, TN 37861 |
| Thorn Hill Post Office | 108 Old Mountain Rd, Thorn Hill, TN 37881 |
| Washburn Post Office | 8110 Highway 131, Washburn, TN 37888 |