Alamosa East is an unincorporated community and a census-designated place (CDP) located in and governed by Alamosa County, Colorado, United States. The population of the Alamosa East CDP was 1,453 at the 2020 United States census. The Alamosa post office (Zip code 81101) serves the area.
The Alamosa East CDP has an area of , all land.
The United States Census Bureau initially defined the for the