Resident Population in Bent County, CO was 5.77900 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Bent County, CO reached a record high of 6.60500 in January of 2009 and a record low of 4.92800 in January of 1991. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Bent County, CO - last updated from the United States Federal Reserve on April of 2026.