Archuleta County is a county located in the U.S. state of Colorado. As of the 2020 census, the population was 13,359. The county seat and the only incorporated municipality in the county is Pagosa Springs.

Pagosa Springs is a home rule municipality that is the county seat, the most populous community, and the only incorporated municipality in Archuleta County, Colorado, United States. The population was 1,571 at the 2020 census. Approximately 65 percent of the land in Archuleta County is either San Juan National Forest, Weminuche and South San Juan wilderness areas, or Southern Ute Indian reservation land.