Founded in 1803, Greenup County is one of 120 counties in the state of Kentucky. Historically, Greenup County was formed from Mason County. The city of Greenup is the county seat. With FIPS code of 89, Greenup County has a population of 35,649 and area of 346 square miles (896 km2).
List of all cities in Greenup County, KY alphabetically
| City/Town | Postal Code | Area Code |
| Argillite, KY | 41121 | 606 |
| Firebrick, KY | 41174 | 606 |
| Flatwoods, KY | 41139 | 606 |
| Greenup, KY | 41144 | 606 |
| Lloyd, KY | 41144 | 606 |
| Load, KY | 41144 | 606 |
| Oldtown, KY | 41144 | 606 |
| Raceland, KY | 41169 | 606 |
| Russell, KY | 41169 | 606 |
| South Portsmouth, KY | 41174 | 606 |
| South Shore, KY | 41175 | 606 |
| Worthington, KY | 41183 | 606 |
| Wurtland, KY | 41144 | 606 |