Resident Population in Dolores County, CO was 2.51300 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Dolores County, CO reached a record high of 2.51300 in January of 2023 and a record low of 1.38300 in January of 1992. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Dolores County, CO - last updated from the United States Federal Reserve on May of 2024.