Oak Park is a census-designated place located in the Simi Hills, in Ventura County, California. As of the 2010 census, Oak Park had a population of 14,266, down from 14,625 at the 2000 census. It is located in the Conejo Valley, north from Malibu and Agoura Hills and is a part of Ventura County. Oak Park was formed from ranchland owned by Cosmo Stevens and Marian Jordan, stars of the radio show Fibber McGee and Molly. The land was purchased by Metropolitan Development Corporation in the 1960s. Homes were developed starting in the late 1960s. Kanan Road (named after a local family) was the only access road to the community, from Agoura Hills, California in neighboring Los Angeles County. As such, the community was served by police and firefighters based in the nearest Ventura County city, Thousand Oaks, 10 miles away, with L.A. County services responding when able.
The community was initially served by the Simi Valley Unified School District, with the nearest post-elementary schools being Sinaloa Junior High (about 20 miles (32 km) away) and Royal High (about 22 (35 km) miles away). Since the Simi Valley Unified School District had no plans to build post-elementary schools in Oak Park, the residents seceded and formed Oak Park Unified School District in June 1977. Medea Creek Middle School started at the current location of the school district in 1980 using portable classrooms. The campus was affectionately called “Bungalow Hill” by students. The middle school was grades 6 – 8 with 6th graders spending morning hours at Brookside Elementary and afternoons at the middle school. The following year when Oak Park High School opened for classes, Medea Creek Middle School shared the campus. Oak Park High School’s class of 1983 was the first graduating class. They were the maiden class; they were upperclassmen each year 9th through 12th grade.
An Environmental Impact Assessment of Oak Park was conducted in 1982 which recorded local flora and fauna.