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Contact Information

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Ontario High School
24 Hour Attendance Line

(909) 460-5832

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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.    

Credit Recovery Lab

Our Credit Recovery Lab in room 81 will be open on the following dates during our Holiday break from 8-11am:

  • Friday, December 19th
  • Saturday, December 20th
  • Monday, December 22nd
  • Monday, December 29th
  • Tuesday, December 30th

Hello Jaguar community!  We have had an exciting semester in all areas including academics, athletics, fine arts and many other aspects of our school.  The 2014-15 school year is flying by!

I want to inform you of a few things as we end our semester:

  1. Final exams will take place December 16, 17 and 18.  Please see the schedule above and note that they are minimum days.
  2. We will be moving into our new classroom building and students will no longer have classes in the portables in the south parking lot.  More parking will be available in the south parking as well.
  3. Construction on our new fields will begin this winter, this will place some of our sports teams off campus for practice.  Please see the practice schedule under our Athletics section on our website for locations and times.

Thank you for your dedication and for supporting our young Jags in the educational process.  Together, we can help them achieve their dreams! 

I hope you come by and say hello!


Mr. 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 academic school year, Ontario High School will have improved student achievement by addressing individual student needs and improving classroom instruction.

Perfect Attendance Monthly Drawings

In addition to the grand perfect attendance celebration hosted by Mark Christopher on May 13, 2015, we are happy to announce that we will have additional opportunities for our students to win prizes for perfect attendance throughout the year!


If students do not make it one month, there’s always an opportunity the following month to be in the giveaway. Official “Cool to Stay in School” rules & regulations apply.  Winner must be present to receive their prize when announced at the monthly drawing


Drawing Date Attendance Date Ranges
September 5, 2014 August 18th - August 29th, 2014
October 3, 2014 September 2nd - September 30th, 2014
November 7, 2014 October 1st - October 31st, 2014
December 5, 2014 November 3rd - November 21st, 2014
January 9, 2015 December 1st - December 18th, 2014
February 6, 2015 January 5th - January 30th, 2015
March 6, 2015 February 2nd - February 27th, 2015
April 3, 2015 March 2nd - March 31st, 2015
May 8, 2015 April 1st - April 30th, 2015


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

Eduardo Zaldavare.jpg 

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2014/15 RISE Schedule

September 13, 2014
September 27, 2014
October 11, 2014
October 25, 2014
November 1, 2014
November 15, 2014
December 6, 2014
December 13, 2014
January 31, 2015
February 21, 2015
February 28, 2015
March 7, 2015 (Tentative)
March 14, 2015 (CAHSEE Day)
April 4, 2015
April 18, 2015
May 2, 2015
May 16, 2015

OHS News

No news posted

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.