5 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Fort Stockton | 1 | 7,876 | 8,468 | -1.48% | 1,419 | 5.55 | City |
| Iraan | 2 | 955 | 1,055 | -2.05% | 1,548 | 0.62 | City |
| Imperial | 3 | 253 | 312 | -0.78% | 60 | 4.22 | CDP |
| Coyanosa | 4 | 62 | 205 | -8.82% | 288 | 0.21 | CDP |
| Sheffield | 5 | 39 | 200 | 8.33% | 44 | 0.89 | CDP |
Fort Stockton is the largest city in Pecos County, with a population of 7,876.
Sheffield is the smallest city in Pecos County.
There are 5 cities in Pecos County, Texas.