Camarillo (pronounce /ˌkæməˈriːoʊ/ or /ˌkæməˈrɪloʊ/) 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 (U.S. Route 101) is the city's primary thoroughfare.