| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Brackettville | 1 | 1,323 | 1,340 | -0.3% | 417 | 3 | City |
| Spofford | 2 | 42 | 44 | -2.33% | 175 | 0 | City |
Brackettville is the largest city in Kinney County, with a population of 1,323.
Spofford is the smallest city in Kinney County, with a population of 42.
There are 2 cities in Kinney County, Texas.