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Ontario High School

Chaffey Joint Union High School District

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    Mr. zaldivar

    Mr. Zaldivar


    Principal's message

    Welcome back to our second semester of the 2019-20 school year!

    Our students are getting a fresh start and have begun their semester with a lot of energy and optimism. 

    Please keep in mind a few points to support students’ achievement this semester:

    • Tutoring takes place after school from 2:30-3:30 Monday-Thursday
    • Our library is open from 2:30-4:30 p.m. Monday-Thursday
    • School Loop will allow you to view students’ grades and progress in their classes
    • School Loop will also provide you an opportunity to contact teachers via email.

     If you need assistance in any of the above, please contact our Guidance office.

    It is crucial for our students to stay focused and attend school every day. We are here to support them and work with our parents and our community to help create paths that will lead to our students’ success in college and careers.

    It is an honor to serve as your Principal, please do not hesitate to call if you have suggestions and ideas.


    Mr. Zaldivar

    Twitter @OntarioHS

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    Cal Baptist signing MOU with Mat Holton

    guaranteed admissions agreement signed with cbu!

    Mathew Holton, Superintendent, and California Baptist University Provost, Dr. Charles Sands, recently signed our newest admission agreement! All CJUHSD graduates who meet the mutually agreed upon admission requirements, will be able to enroll and attend this progressive university. One of the amazing highlights of this agreement is the commitment of CBU to provide a minimum of $8,000 per academic year in combined scholarships and grants to all our students! We are very excited to provide this opportunity for our students to attend this university in Riverside, California. This agreement, along with the previous agreements with Cal State San Bernardino, Cal Poly Pomona, Cal State Bakersfield, University of Redlands, University of La Verne, Azusa Pacific University, and Grand Canyon University continue to provide an advantage to the students of the Chaffey Joint Union High School District to pursue their dreams for the future!

    CJUHSD Signed MOU's