The main campus located in the central part of Olongapo City along Rizal Avenue, corner 14th Street, East Tapinac with a total service area of 18,993 square meters.

It is more than 2.43 kilometers away from the Department of Education (DepEd) Division Office, Olongapo City to the main campus.

As the municipality of Olongapo was populated and flourished due to economic activities brought by the expansion of the US Ship Repair Facility (SRF) and other port and military services during Korean War, the demand to turn over the town to Zambales Provincial government for added provincial revenues became stronger.

Under the United States- Republic of the Philippines Military Base Agreement of 1954, the municipality and Olongapo High School were officially turned over to the provincial government in 1959.

It offers various curricula for high school students designed to develop individual learning inclinations and interests, discover talent in journalism, creative arts, to learn foreign languages and stress discipline in the field of sports as well as physical sciences.