4 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Alpine | 1 | 6,039 | 6,036 | 0% | 1,253 | 5 | City |
| Marathon | 2 | 236 | 365 | -5.22% | 45 | 5 | CDP |
| Terlingua | 3 | 193 | 110 | 7.22% | 18 | 11 | CDP |
| Study Butte | 4 | 164 | 149 | -2.96% | 34 | 5 | CDP |
Alpine is the largest city in Brewster County, with a population of 6,039.
Study Butte is the smallest city in Brewster County, with a population of 164.
There are 4 cities in Brewster County, Texas.