6 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Pleasanton | 1 | 11,772 | 10,683 | 1.57% | 1,311 | 9 | City |
| Jourdanton | 2 | 4,732 | 4,242 | 1.76% | 1,301 | 4 | City |
| Lytle | 3 | 3,531 | 2,912 | 3% | 718 | 5 | City |
| Poteet | 4 | 3,105 | 2,805 | 1.64% | 1,556 | 2 | City |
| Charlotte | 5 | 1,664 | 1,532 | 1.34% | 816 | 2 | City |
| Christine | 6 | 378 | 338 | 1.89% | 220 | 2 | Town |
Pleasanton is the largest city in Atascosa County, with a population of 11,772.
Christine is the smallest city in Atascosa County, with a population of 378.
There are 6 cities in Atascosa County, Texas.