| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Flatwoods | 1 | 7,423 | 7,495 | -0.22% | 1,566 | 5 | City |
| Russell | 2 | 3,603 | 3,737 | -0.69% | 946 | 4 | City |
| Raceland | 3 | 2,293 | 2,336 | -0.39% | 924 | 2 | City |
| Worthington | 4 | 1,436 | 1,498 | -0.76% | 1,264 | 1 | City |
| Greenup | 5 | 1,062 | 1,097 | -0.65% | 504 | 2 | City |
| South Shore | 6 | 1,028 | 1,066 | -0.68% | 1,460 | 1 | City |
| Wurtland | 7 | 964 | 983 | -0.41% | 546 | 2 | City |
Flatwoods is the largest city in Greenup County, with a population of 7,423.
Wurtland is the smallest city in Greenup County, with a population of 964.
There are 7 cities in Greenup County, Kentucky.