Charles Zupanic High School, established in 1990, is located in Rialto, in San Bernardino County.  The District serves students in a 55 square mile area.  Included in the boundaries are the City of Rialto, the western portion of the City of San Bernardino, a small segment of the cities of Colton and Fontana, and some unincorporated county territory. 

At the time of the last accreditation, the Rialto Unified School District served a student population of 30,000. Current district enrollment is over 26,000 students housed in 19 elementary schools, 5 middle schools, 3 comprehensive high schools, 1 continuation high school, and 1 virtual academy.

Zupanic Virtual Academy is a fully accredited independent study and virtual platform that serves students from TK-12.  ZVA recognizes the diverse needs, experiences, and backgrounds of our students.