History of Rio Norte – About Us – Rio Norte Junior High Rio Norte Junior High School opened on August 18, 2003 As one of six junior high schools in the William S Hart Union High School District, our 25-acre campus serves 7th and 8th-grade students in the Santa Clarita Valley
Bell Schedules - Rio Norte Junior High Rio Norte Junior High is part of the William S Hart Union High School District and is located in Santa Clarita, CA