10 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Bartlett | 1 | 56,226 | 57,671 | -0.43% | 1,723 | 33 | City |
| Oakland | 2 | 11,629 | 9,048 | 3.84% | 1,111 | 10 | Town |
| Somerville | 3 | 3,571 | 3,427 | 0.68% | 263 | 14 | Town |
| Piperton | 4 | 2,997 | 2,303 | 4.03% | 110 | 27 | City |
| Rossville | 5 | 1,244 | 1,060 | 2.56% | 195 | 6 | Town |
| Moscow | 6 | 549 | 567 | -0.54% | 430 | 1 | City |
| Gallaway | 7 | 517 | 529 | -0.39% | 89 | 6 | City |
| Williston | 8 | 330 | 351 | -0.9% | 200 | 2 | City |
| Braden | 9 | 244 | 256 | -0.81% | 66 | 4 | Town |
| La Grange | 10 | 118 | 124 | -0.84% | 59 | 2 | Town |
Bartlett is the largest city in Fayette County, with a population of 56,226.
La Grange is the smallest city in Fayette County, with a population of 118.
There are 10 cities in Fayette County, Tennessee.