11 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Coalgate | 1 | 1,726 | 1,659 | 0.64% | 950 | 2 | City |
| Coalgate | 2 | 1,726 | 1,668 | 0.64% | 950 | 2 | City |
| Tupelo | 3 | 333 | 324 | 0.3% | 802 | 0 | City |
| Tupelo | 4 | 333 | 325 | 0.3% | 802 | 0 | City |
| Lehigh | 5 | 280 | 272 | 0.36% | 178 | 2 | City |
| Lehigh | 6 | 280 | 272 | 0.36% | 178 | 2 | City |
| Clarita | 7 | 224 | 144 | 7.18% | 28 | 8 | CDP |
| Gerty | 8 | 92 | 94 | -1.08% | 364 | 0 | Town |
| Gerty | 9 | 92 | 94 | -1.08% | 364 | 0 | Town |
| Centrahoma | 10 | 86 | 83 | 0% | 343 | 0 | City |
| Centrahoma | 11 | 86 | 83 | 0% | 343 | 0 | City |
Coalgate is the largest city in Coal County, with a population of 1,726.
Centrahoma is the smallest city in Coal County, with a population of 86.
There are 11 cities in Coal County, Oklahoma.