Founded on 1913/3/8, Alamosa County is one of 64 counties in the state of Colorado. Historically, Alamosa County was split from Costilla County and Conejos County. The city of Alamosa is the county seat. With FIPS code of 3, Alamosa County has a population of 16,547 and area of 723.21 square miles (1,873 km2).
List of all cities in Alamosa County, CO alphabetically
| City/Town | Postal Code | Area Code |
| Adams State College, CO | 81102 | 719 |
| Alamosa, CO | 81101 | 719 |
| 81102 | 719 | |
| Carmel, CO | 81101 | 719 |
| East Alamosa, CO | 81101 | 719 |
| Estrella, CO | 81101 | 719 |
| Great Sand Dunes National Mo, CO | 81101 | 719 |
| Henry, CO | 81101 | 719 |
| Hooper, CO | 81136 | 719 |
| Mosca, CO | 81146 | 719 |
| Sand Dunes Mo, CO | 81101 | 719 |
| Stanley, CO | 81101 | 719 |
| Washington, CO | 81101 | 719 |
| Waverly, CO | 81101 | 719 |
Map of Cities in Alamosa County, CO
