3 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Alamosa | 1 | 9,928 | 9,815 | 0.23% | 1,246 | 7.96 | City |
| Alamosa East | 2 | 1,284 | 987 | -0.93% | 395 | 3.25 | CDP |
| Hooper | 3 | 79 | 79 | 0% | 313 | 0.25 | Town |
Alamosa is the largest city in Alamosa County, with a population of 9,928.
Hooper is the smallest city in Alamosa County.
There are 3 cities in Alamosa County, Colorado.