8 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Cataula | 1 | 2,286 | 1,654 | 7.12% | 353 | 6.47 | CDP |
| Hamilton | 2 | 1,814 | 1,686 | 1.45% | 531 | 3.41 | City |
| Pine Mountain | 3 | 1,319 | 1,224 | 1.46% | 421 | 3.13 | Town |
| Ellerslie | 4 | 1,296 | 1,273 | 7.11% | 521 | 2.49 | CDP |
| Antioch | 5 | 756 | 284 | 7.08% | 296 | 2.56 | CDP |
| Waverly Hall | 6 | 683 | 643 | 1.19% | 205 | 3.34 | Town |
| Piney Grove | 7 | 476 | 691 | 7.21% | 174 | 2.74 | CDP |
| Shiloh | 8 | 434 | 403 | 1.4% | 198 | 2.19 | City |
Cataula is the largest city in Harris County, with a population of 2,286.
Shiloh is the smallest city in Harris County.
There are 8 cities in Harris County, Georgia.