2 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Thomaston | 1 | 9,863 | 9,824 | 0.07% | 1,034 | 10 | City |
| Yatesville | 2 | 567 | 393 | 5.39% | 609 | 1 | Town |
Thomaston is the largest city in Upson County, with a population of 9,863.
Yatesville is the smallest city in Upson County, with a population of 567.
There are 2 cities in Upson County, Georgia.