2 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Manchester | 1 | 1,369 | 1,516 | -2.07% | 468 | 2.93 | City |
| Oneida | 2 | 234 | 370 | -4.88% | 115 | 2.04 | CDP |
Manchester is the largest city in Clay County, with a population of 1,369.
Oneida is the smallest city in Clay County.
There are 2 cities in Clay County, Kentucky.