6 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Thomasville | 1 | 18,472 | 18,867 | -0.36% | 1,230 | 15 | City |
| Boston | 2 | 1,247 | 1,211 | 0.48% | 553 | 2 | City |
| Meigs | 3 | 952 | 927 | 0.42% | 612 | 2 | City |
| Ochlocknee | 4 | 689 | 665 | 0.58% | 744 | 1 | Town |
| Pavo | 5 | 599 | 611 | -0.33% | 340 | 2 | City |
| Coolidge | 6 | 552 | 528 | 0.73% | 676 | 1 | City |
Thomasville is the largest city in Thomas County, with a population of 18,472.
Coolidge is the smallest city in Thomas County, with a population of 552.
There are 6 cities in Thomas County, Georgia.