6 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| South Fulton | 1 | 113,884 | 108,241 | 0.83% | 1,225 | 93 | City |
| Peachtree City | 2 | 41,952 | 38,369 | 1.44% | 1,669 | 25 | City |
| Fayetteville | 3 | 21,121 | 19,015 | 1.69% | 1,629 | 13 | City |
| Tyrone | 4 | 8,194 | 7,726 | 0.96% | 655 | 13 | Town |
| Chattahoochee Hills | 5 | 3,691 | 2,971 | 3.36% | 63 | 58 | City |
| Brooks | 6 | 591 | 570 | 0.68% | 137 | 4 | Town |
South Fulton is the largest city in Fayette County, with a population of 113,884.
Brooks is the smallest city in Fayette County, with a population of 591.
There are 6 cities in Fayette County, Georgia.