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Ontario High School
24 Hour Attendance Line

(909) 460-5832

Community Updates

The Common Core State Standards Overview



Click here to view OHS WASC information

Hey Ontario.....


The Chaffey Joint Union High School District has partnered with School Loop. School Loop is an innovative communication tool designed to keep parents, students, teachers and staff connected. With School Loop parents and students can:

  •  Check assignments online
  •  Monitor current grades
  •  Email teachers/counselors
  •  View school news/events
  •  Submit work electronically

Every Chaffey District parent and student is encouraged to register. It takes less than two minutes to sign up and all accounts are FREE! Click the 'Register Now' tab on the top left of this page.    

Dear Jaguar Community!


We are off to an amazing start in Jagland! Our students walked into a new quad and based on their comments, they love it! We are proud to share that Ontario High School is ranked 9 out of 10 in the California Similar Schools ranking!  Our A-G rate stands at nearly 48%, a tremendous growth from our previous year! We continue to excel as a school due to the tremendous staff, parents, community and of course, our students!

We are gearing up for our after school tutoring that will start at the end of August!  We are also in the process of starting our parent classes provided by the Parent Institute for Quality Education as well as the 12 Powers of Family Business provided by the Special Assistant to the Superintendent, San Bernardino, County Schools, Alliance for Education.

Our fall sports are also underway, I hope you have an opportunity to watch our student-athletes in action! Our band and color guard have also spent countless hours preparing for their performances this fall.  We have a Club Rush during lunches that will allow students to join one of our many clubs on campus. 

I hope you come by and say hello!  You may contact me at 909-988-7411, you may reach Ms. Cinde Diedrich in the Principal’s office at extension 2021.


Eduardo Zaldivar


Go Jags!

Week At A Glance


Apply Online for Meal Benefits

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Try a new and convenient way to apply for Free and Reduced Meal Benefits online. It's fast, easy and confidential. 

Order Your Official Transcript Online

The link above provides you with the ability to request transcripts online. Transcripts requested online are sent securely to the colleges, universities, or scholarship funds that you select.


Vision Statement

At the end of the 2013-14 school year, Ontario High School will have improved student achievement by addressing individual student needs and improving classroom instruction.

It's Cool to Stay in School

Mark Christopher Auto Center
"It's Cool to Stay in School"
Perfect Attendance Car Give-Away!


For the 2014-2015 school year, students at Ontario High School and Alta Loma High School will be eligible for a chance to WIN a new Chevrolet Cruz, all they have to do is have PERFECT ATTENDANCE for the school year.

See below for more information:


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Ontario High School would like to give Mark Christopher a special thanks for all of their support!


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Go Jaguars!


Mr. Zaldivar, Principal

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Dream Act

School Accountability Report Card

2012-2013 - English
2012-2013 - Spanish

A hard copy of our SARC Report is available in the main office.