Camarillo is a city in Ventura County, California, United States. The population was 57,077 at the 2000 census. A January 1, 2006, California Department of Finance estimate lists the population at 64,034. The Ventura Freeway is the city's primary thoroughfare. Camarillo is named for Adolfo Camarillo, one of the few Californios (pre-1851 California natives of Spanish ancestry) to preserve the city's heritage after the arrival of Anglo settlers. As with most cities in Ventura County, it is noted for its resistance to urban sprawl. Some of the most desirable land in the city limits, located on the north and south sides of the Ventura Freeway, is "permanently" zoned for agricultural use. The construction in these zones show the progressive erosion of permanence. It is home to the Ventura County, California Sheriff's Department Academy, as well as the department's other assets; such as the VCSD Air Unit, SWAT Unit, Bomb Squad, and Reserve Officer Academy.