Camarillo ( ) is a city in Ventura County in the U.S. state of California. The population was 65,201 at the 2010 census, up from 57,084 at the 2000 census. The Ventura Freeway (U.S. Route 101) is the city's primary thoroughfare. Camarillo is named for Adolfo and Juan Camarillo, two of the few Californios (pre-1848 California natives of Hispanic ancestry) to preserve the city's heritage after the arrival of Anglo settlers. The railroad coast route came through in 1898 and built a station here. Adolfo Camarillo eventually employed 700 workers growing mainly lima beans. Walnuts and citrus were also grown on the ranch. Adolfo bred Camarillo White Horses in the 1920s through the 1960s and was well known for riding them, dressed in colorful Spanish attire, in parades such as the Fiesta of Santa Barbara.