14 cities
| City | County | 2025 Pop. ↓ |
|---|---|---|
| Johns Creek | Forsyth County | 80,812 |
| Jefferson | Jackson County | 17,229 |
| Jesup | Wayne County | 10,341 |
| Jonesboro | Clayton County | 6,114 |
| Jackson | Butts County | 5,946 |
| Jasper | Pickens County | 5,583 |
| Jekyll Island | Glynn County | 1,182 |
| Jeffersonville | Twiggs County | 914 |
| Jenkinsburg | Butts County | 426 |
| Juliette | Monroe County | 303 |
| Jersey | Walton County | 156 |
| Junction City | Talbot County | 140 |
| Jakin | Early County | 130 |
| Jacksonville | Telfair County | 103 |