| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Thomasville | 1 | 18,631 | 18,869 | -0.19% | 1,241 | 15 | City |
| Boston | 2 | 1,258 | 1,210 | 0.56% | 558 | 2 | City |
| Meigs | 3 | 961 | 927 | 0.52% | 618 | 2 | City |
| Ochlocknee | 4 | 688 | 665 | 0.44% | 743 | 1 | Town |
| Pavo | 5 | 598 | 614 | -0.5% | 340 | 2 | City |
| Coolidge | 6 | 562 | 535 | 0.72% | 688 | 1 | City |
Thomasville is the largest city in Thomas County, with a population of 18,631.
Coolidge is the smallest city in Thomas County, with a population of 562.
There are 6 cities in Thomas County, Georgia.