| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Carrizo Springs | 1 | 4,425 | 4,872 | -1.47% | 1,432 | 3 | City |
| Asherton | 2 | 649 | 714 | -1.52% | 794 | 1 | City |
| Big Wells | 3 | 442 | 480 | -1.34% | 796 | 1 | City |
Carrizo Springs is the largest city in Dimmit County, with a population of 4,425.
Big Wells is the smallest city in Dimmit County, with a population of 442.
There are 3 cities in Dimmit County, Texas.