5 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Fort Stockton | 1 | 8,066 | 8,471 | -0.99% | 1,454 | 6 | City |
| Iraan | 2 | 1,003 | 1,057 | -1.08% | 1,626 | 1 | City |
| Imperial | 3 | 253 | 312 | -0.78% | 60 | 4 | CDP |
| Coyanosa | 4 | 62 | 205 | -8.82% | 288 | 0 | CDP |
| Sheffield | 5 | 39 | 200 | 8.33% | 44 | 1 | CDP |
Fort Stockton is the largest city in Pecos County, with a population of 8,066.
Sheffield is the smallest city in Pecos County, with a population of 39.
There are 5 cities in Pecos County, Texas.