Oak Park is an unincorporated community in Ventura County, California, United States. When developed in the Simi Hills in the late 1960s, a single road provided the only access to the community from Agoura Hills, California in neighboring Los Angeles County. As of the 2010 census, Oak Park had a population of 14,266, down from 14,625 at the 2000 census. For statistical purposes, the United States Census Bureau has defined Oak Park as a census-designated place (CDP). The census definition of the area may not precisely correspond to local understanding of the area with the same name.HistoryOak Park has had human occupation from about 5500 B.C. to the present day. It lies within a zone including the early Millingstone Horizon and inland Chumash Indians. Indians camped throughout the area as they collected acorns, yucca, and other food. The sites in the area include major villages, smaller camps and several rock shelters.The location of Oak Park was originally part of Rancho Simi, a Spanish land concession in Alta California given in 1795 to Francisco Javier Pico, a soldier of the Santa Barbara company, and his two brothers, Patricio Pico and Miguel Pico by the Spanish government. Lindero Canyon Road follows the western border-line (lindero in Spanish) of the land grant.Throughout the 20th century, studios used the area to film movies and in particular westerns. Movies filmed locally include The Red Pony and A Walk in the Sun.
