12 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Thomasville | 1 | 18,538 | 18,874 | -0.35% | 1,235 | 15 | City |
| Thomasville | 2 | 18,538 | 18,867 | -0.35% | 1,235 | 15 | City |
| Boston | 3 | 1,241 | 1,210 | 0.49% | 551 | 2 | City |
| Boston | 4 | 1,241 | 1,211 | 0.49% | 551 | 2 | City |
| Meigs | 5 | 948 | 928 | 0.42% | 609 | 2 | City |
| Meigs | 6 | 948 | 927 | 0.42% | 609 | 2 | City |
| Ochlocknee | 7 | 685 | 666 | 0.59% | 740 | 1 | Town |
| Ochlocknee | 8 | 685 | 665 | 0.59% | 740 | 1 | Town |
| Pavo | 9 | 601 | 613 | -0.33% | 341 | 2 | City |
| Pavo | 10 | 601 | 611 | -0.33% | 341 | 2 | City |
| Coolidge | 11 | 548 | 529 | 0.74% | 671 | 1 | City |
| Coolidge | 12 | 548 | 528 | 0.74% | 671 | 1 | City |
Thomasville is the largest city in Thomas County, with a population of 18,538.
Coolidge is the smallest city in Thomas County, with a population of 548.
There are 12 cities in Thomas County, Georgia.