7 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Pleasanton | 1 | 11,537 | 10,682 | 1.5% | 1,285 | 8.98 | City |
| Jourdanton | 2 | 4,450 | 4,085 | 1.67% | 1,224 | 3.64 | City |
| Lytle | 3 | 3,349 | 2,921 | 2.64% | 703 | 4.76 | City |
| Poteet | 4 | 3,116 | 2,806 | 2.03% | 1,798 | 1.73 | City |
| Charlotte | 5 | 1,640 | 1,529 | 1.36% | 804 | 2.04 | City |
| Leming | 6 | 1,224 | 599 | 1.58% | 254 | 4.83 | CDP |
| Christine | 7 | 364 | 338 | 1.39% | 212 | 1.72 | Town |
Pleasanton is the largest city in Atascosa County, with a population of 11,537.
Christine is the smallest city in Atascosa County.
There are 7 cities in Atascosa County, Texas.