2 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Thomaston | 1 | 9,856 | 9,824 | 0.06% | 1,033 | 10 | City |
| Yatesville | 2 | 538 | 393 | 5.7% | 578 | 1 | Town |
Thomaston is the largest city in Upson County, with a population of 9,856.
Yatesville is the smallest city in Upson County, with a population of 538.
There are 2 cities in Upson County, Georgia.