Resident Population in Jefferson County, CO

Resident Population in Jefferson County, CO was 578.53300 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Jefferson County, CO reached a record high of 583.16900 in January of 2020 and a record low of 235.36800 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Jefferson County, CO - last updated from the United States Federal Reserve on April of 2026.



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