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Diamond Ranch High School

Public School | Grades 9-12 | Pomona Unified
100 Diamond Ranch Dr
Pomona, CA 91766
(909) 397-4715

About This School

Diamond Ranch High School is located in Pomona, CA and is one of 14 high schools in Pomona Unified School District. It is a public school that serves 1833 students in grades 9-12. See Diamond Ranch 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.

Diamond Ranch High School had an API growth score of 813 in 2012. California uses the Academic Performance Index (API) to measure annual school performance and year-to-year improvement. Diamond Ranch High School's 2012 base score was 798 and the school did meet its 2012 school-wide growth target.

In 2010, Diamond Ranch High School had 28 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)

50% 50%

Subsidized Lunch (2011)


District Spending (2010)

per student
See All Test Scores

All Grades Physics Performance

CST Results
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Diamond Ranch High School Reviews

By a Parent on

The Best School in the PUSD by far. My son son who is a junior totally loves this school. Was very thankful I didn't send him to his home school. My daughter will be a freshman this year and is totally looking forward to starting school. This school does a good job at recognizing the students efforts. The Honors awards assembly was very nice. Keep up the good work!  

By a Current Student on

As a student in Diamond Ranch, I have been able to participate in many activities that I have never done before. For example, Interact, CSF, Arquitect club, Habitat for Humanity. I have also been able to interact with different people of different backgrounds and ethnicity.  The teachers there are great and have a passion for teaching. Especially my Anatomy teacher. The staff and teachers work hard to implement every day a goal whether it be to be collaborative workers, effective communicaters, and maintaing high CST scores.

By a Teacher on

In the 10 years that I’ve been teaching Art at Diamond Ranch High School I have always enjoyed our student artwork outcomes. In art 1, the deer eyed students, come into my class saying, “I can only draw stick people” and fear that they will fail because of their lack of art skills.   With a smile I tell them to take a deep breath and let me show you the “tricks of the trade.” What they see, with surprised open eyes and wide smiles, right off is how they can create realistic drawings. Later their new found abilities leads them to express more fun and complex designs.  This teaching strategy relates to all core curriculums.
As an instructor and international artist I recommend this public academic instruction without reservations.

By a Current Student on

Diamond Ranch High is a great school to attend.The grounds of this school are mixed with diffrent people from diffrent backgrounds. This mixture of people provides a beautiful place for all of its students to feel accepted. Academics, athletics and curriculm are the bases of which this school is founded on. Diamond Ranch is a school of great potential and a drive to do much with that potential.    

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