Program Information Orange County Christian School opened its doors in September 1975 at the Norwalk Church of Christ building. The school was known as Pioneer Christian School. The goal of the parents and members of the Church of Christ was to have a Christ-centered education for their children. In the beginning the school had grades Kindergarten through third, 30 students, two teachers and one part-time principal. OCCS has, in their two decades of education, grown to preschool through senior high. The school purchased its present campus in Orange County in 1991.