Post Offices List in Greenup County, Kentucky:
| Argillite Post Office | 5470 State Route 1, Argillite, KY 41121 |
| Flatwoods Post Office | 2125 Argillite Rd, Flatwoods, KY 41139 |
| Greenup Post Office | 1312 Ashland Rd, Greenup, KY 41144 |
| Russell Post Office | 517 Boyd St, Russell, KY 41169 |
| South Portsmouth Post Office | 2246 State Route 8, South Portsmouth, KY 41174 |
| South Shore Post Office | 11 Narco Dr, South Shore, KY 41175 |
| Worthington Post Office | 605 Ferry Ave, Worthington, KY 41183 |
| Wurtland Post Office | 500 Wurtland Ave, Greenup, KY 41144 |