14 cities
| City | County | 2025 Pop. ↓ |
|---|---|---|
| Johns Creek | Forsyth County | 80,123 |
| Jefferson | Jackson County | 17,340 |
| Jesup | Wayne County | 10,235 |
| Jonesboro | Clayton County | 6,236 |
| Jackson | Butts County | 6,058 |
| Jasper | Pickens County | 5,545 |
| Jekyll Island | Glynn County | 1,182 |
| Jeffersonville | Twiggs County | 893 |
| Jenkinsburg | Butts County | 432 |
| Juliette | Monroe County | 303 |
| Jersey | Walton County | 155 |
| Junction City | Talbot County | 137 |
| Jakin | Early County | 126 |
| Jacksonville | Telfair County | 104 |