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Ontario High School

Public School | Grades 9-12 | Chaffey Joint Union High
901 West Francis St
Ontario, CA 91762
(909) 988-7411

About This School

Ontario High School is located in Ontario, CA and is one of 11 high schools in Chaffey Joint Union High School District. It is a public school that serves 2932 students in grades 9-12. See Ontario High School's test results to learn more about school performance.

A school's Academic Performance Index (API) is a scale that ranges from 200 to 1000 and is calculated from the school's performance in the Standardized Testing and Reporting (STAR) Program. The state has set 800 as the API target for all schools to meet.

Ontario High School had an API growth score of 731 in 2012. California uses the Academic Performance Index (API) to measure annual school performance and year-to-year improvement. Ontario High School's 2012 base score was 721 and the school did meet its 2012 school-wide growth target.

In 2010, Ontario High School had 26 students for every full-time equivalent teacher. The California average is 24 students per full-time equivalent teacher.

Student Ethnicity (2011)

Students (2011)


Students Per Teacher (2010)

Female/Male (2011)

49% 51%

Subsidized Lunch (2011)


District Spending (2010)

per student
See All Test Scores

All Grades World History Performance

CST Results
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Ontario High School Reviews

By a Current Student on

Ontario High is a great school. I came here my junior year, after being in a seperate school district and area, and i managed to fit in just fine. Teachers are personal and friendly, the cirriculum rigorous, and the campus vibe is generally receptive. There are loads of smart students, great athletes, and even greater leaders. Of course like all schools, there are some who will say we suck because of this, that, and the other. But i say it's who you're hanging out with, what you're involved in, and what you're doing to make our school better.

By a Current Student on

well I think Ontario high school is a great school to attend, because I attend to the high school and by the time I was there all the teachers and staff were the best because there focusing on the students that need them more than other students and is not a bad thing to help other students most of all the ones that are not going to graduate an the opositive what are the teachers are trying to do is to help them so they can graduate with there generation, that´s what I like about Ontario high school, by the way I attend to the school on the years 2006,2007,2008 and like 3 months of the year 2009.

By a Current Student on

Ontario is a great school, with a very great honors and AP program. the only bad thing i would have to say about Ontario is that the administration focuses too heavily on the students that are not going to graduate instead of focusing there attention on the students that are going to graduate. But other then that Ontario has a superb sports and arts program, as well as an academic program. all in all, ohs is a great school to attend.

Ontario High School Photos

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