El Dorado Hills was originally founded by a wealthy ranch owner by the name of Michael Beckwithe. El Dorado Hills is a census-designated place located in El Dorado County, California. As of the 2000 census, the CDP had a total population of 18,016. Rapid development in recent years has made it the county's largest community, although it is still unincorporated. Population estimates from various government agencies range from about 35,276 in January 2006 to 40,929 at the end of 2006, depending mainly on each agency's choice of boundaries to define El Dorado Hills. El Dorado Hills apartments for rent comparison page shows most up to date rent information on El Dorado Hills apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.