Resident Population in Archuleta County, CO was 14.11200 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Archuleta County, CO reached a record high of 14.16700 in January of 2023 and a record low of 2.40000 in January of 1972. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Archuleta County, CO - last updated from the United States Federal Reserve on April of 2026.