Post Offices List in Franklin County, Idaho:
| Clifton Post Office | 30 S Main Hwy, Clifton, ID 83228 |
| Dayton Post Office | 816 N Westside Hwy, Dayton, ID 83232 |
| Franklin Post Office | 45 S 1st E, Franklin, ID 83237 |
| Preston Post Office | 55 E Oneida St, Preston, ID 83263 |
| Weston Post Office | 77 W Depot St, Weston, ID 83286 |