11 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Ada | 1 | 16,697 | 16,482 | 0.26% | 861 | 19.39 | City |
| Latta | 2 | 1,608 | 1,021 | 7.2% | 638 | 2.52 | CDP |
| Byng | 3 | 1,412 | 1,397 | 0.21% | 216 | 6.52 | Town |
| Pickett | 4 | 1,235 | 822 | 7.11% | 382 | 3.23 | CDP |
| Allen | 5 | 809 | 803 | 0.12% | 861 | 0.94 | Town |
| Roff | 6 | 630 | 635 | -0.16% | 683 | 0.92 | Town |
| Stonewall | 7 | 421 | 415 | 0.24% | 886 | 0.47 | Town |
| Francis | 8 | 253 | 247 | 0.4% | 439 | 0.58 | Town |
| Fitzhugh | 9 | 186 | 183 | 0.54% | 25 | 7.50 | Town |
| Vanoss | 10 | 68 | 50 | 7.94% | 56 | 1.21 | CDP |
| Fittstown | 11 | 59 | 80 | 7.27% | 55 | 1.07 | CDP |
Ada is the largest city in Pontotoc County, with a population of 16,697.
Fittstown is the smallest city in Pontotoc County.
There are 11 cities in Pontotoc County, Oklahoma.