High Quality Content by WIKIPEDIA articles! Oroville High School is located in the rural north valley at the base of the Sierra Nevada foothills, about seventy miles north of Sacramento, California. Founded in 1892, Oroville High School is the oldest high school in the district. The campus covers 4 acres (16,000 m2). Of the 46 classrooms on campus, five have full functioning computer labs. Additionally, on campus are two computer labs and a library