Resident Population in Clear Creek County, CO was 9.07600 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Clear Creek County, CO reached a record high of 9.59800 in January of 2019 and a record low of 4.81900 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Clear Creek County, CO - last updated from the United States Federal Reserve on April of 2026.