| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Celina | 1 | 1,409 | 1,424 | -0.21% | 765 | 2 | City |
Celina is the largest city in Clay County, with a population of 1,409.
Celina is the smallest city in Clay County, with a population of 1,409.
There is 1 city in Clay County, Tennessee.