6 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Royston | 1 | 2,669 | 2,649 | 0.15% | 814 | 3 | City |
| Lavonia | 2 | 2,173 | 2,132 | 0.37% | 482 | 5 | City |
| Franklin Springs | 3 | 1,187 | 1,154 | 0.51% | 545 | 2 | City |
| Carnesville | 4 | 785 | 714 | 1.82% | 223 | 4 | City |
| Canon | 5 | 719 | 648 | 1.99% | 230 | 3 | City |
| Avalon | 6 | 244 | 232 | 0.83% | 138 | 2 | Town |
Royston is the largest city in Franklin County, with a population of 2,669.
Avalon is the smallest city in Franklin County, with a population of 244.
There are 6 cities in Franklin County, Georgia.