Resident Population in Gilpin County, CO was 5.92600 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Gilpin County, CO reached a record high of 6.23200 in January of 2019 and a record low of 1.27200 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Gilpin County, CO - last updated from the United States Federal Reserve on May of 2024.