The college district serves the population of the vibrant inland empire of western
San Bernardino County, where the communities of Chino, Chino Hills, Fontana,
Guasti, Montclair, Mt. Baldy, Ontario, Rancho Cucamonga (Alta Loma, Cucamonga,
and Etiwanda), and Upland are located. Four districts serving high school students
are contained in these communities. They are the Chaffey Joint Union High School,
the Chino Unified School District, the Fontana Unified School District, and the
Upland Unified School District.