The community was initially served by the Simi Valley Unified School District, with the nearest post-elementary schools being Sinaloa Junior High (about 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 sixth-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 ninth through 12th grade.