Charter Oak High School is a four-year comprehensive secondary school in the Charter Oak Unified School District.

It is located in the City of Covina, California, in the San Gabriel Valley east of Los Angeles.

The school serves 9th, 10th, 11th and 12th graders from the communities of Covina, Azusa and Glendora.

[1] Charter Oak High School, which opened in 1959, is accredited by the Western Association of Schools and Colleges.

The majority of students are Hispanic, with a large white minority and smaller minorities of African Americans and Asian Americans.