Resident Population in Colorado was 5877.61000 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Colorado reached a record high of 5877.61000 in January of 2023 and a record low of 543.00000 in January of 1900. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Colorado - last updated from the United States Federal Reserve on March of 2024.