Altona,_Colorado
Altona, Colorado
Census Designated Place in Colorado, United States
Altona is an unincorporated community and a census-designated place (CDP) located in and governed by Boulder County, Colorado, United States. The CDP is a part of the Boulder, CO Metropolitan Statistical Area. The population of the Altona CDP was 512 at the United States Census 2020.[3] The Boulder post office (Zip Code 80302) serves the area.[4]