12 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| McAlester | 1 | 18,095 | 18,159 | -0.07% | 1,017 | 18 | City |
| Krebs | 2 | 2,064 | 2,083 | -0.19% | 426 | 5 | City |
| Hartshorne | 3 | 1,871 | 1,945 | -0.8% | 575 | 3 | City |
| Quinton | 4 | 843 | 866 | -0.59% | 943 | 1 | Town |
| Haileyville | 5 | 693 | 715 | -0.72% | 670 | 1 | City |
| Savanna | 6 | 612 | 624 | -0.49% | 420 | 1 | Town |
| Kiowa | 7 | 610 | 595 | 0.49% | 491 | 1 | Town |
| Crowder | 8 | 295 | 303 | -0.67% | 144 | 2 | Town |
| Alderson | 9 | 216 | 219 | -0.46% | 370 | 1 | Town |
| Pittsburg | 10 | 177 | 181 | -0.56% | 371 | 0 | Town |
| Indianola | 11 | 143 | 148 | -0.69% | 448 | 0 | Town |
| Canadian | 12 | 142 | 147 | -0.7% | 188 | 1 | Town |
McAlester is the largest city in Pittsburg County, with a population of 18,095.
Canadian is the smallest city in Pittsburg County, with a population of 142.
There are 12 cities in Pittsburg County, Oklahoma.