| Zip Code | City | Population ↓ |
|---|---|---|
| 41144 | Greenup | 9,486 |
| 41139 | Flatwoods | 8,184 |
| 41175 | South Shore | 5,515 |
| 41169 | Russell | 5,353 |
| 41121 | Argillite | 1,854 |
| 41183 | Worthington | 1,722 |
| 41174 | South Portsmouth | 843 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 7 ZCTAs in Greenup County, Kentucky (US Census).