Ken Caryl, commonly referred to as Ken Caryl Ranch, is an unincorporated community and a census-designated place (CDP) located in Jefferson County, Colorado, in the United States. It is situated within the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area.
As of the 2020 census, the population of the Ken Caryl CDP was 33,811. The area receives essential services from the Ken Caryl Ranch Water District and the KenCaryl Ranch Metropolitan District, while the Littleton post office serves the community's mail needs.