Diamond Bar High School

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Diamond Bar High School

Public High School | Grade 9-12
21400 Pathfinder Rd,  Diamond Bar, CA
Walnut Valley Unified School District
3.9
2.1
2,563 Students
A+
Niche Grade

School Details

Head of School
Denis Paul
Student Teacher Ratio
26:1
Average SAT Score
1370
Average ACT Score
31
Math Proficiency
68%
Reading Proficiency
76%
Average GPA
3.68
Graduation Rate
97%

Niche Grade

A+
Academics
A-
Teachers
A
College Prep
B+
Administration
B-
Resources/Facilities
B+
Clubs and Activities
B-
Sports
C+
Food
Source: Niche
Niche Grades

Niche grades and rankings are calculated using dozens of public data sets and millions of reviews. Niche data scientists and user researchers rigorously analyze data and user opinions to assess the key aspects of K-12 Schools, Colleges, and Places to Live. Every month, millions of students and families use the Niche grades and report cards to find the right school or neighborhood.

Niche Grade Details

Academics
Average GPA
3.68
Reading Proficiency
76%
Math Proficiency
68%
Teachers
Student Teacher Ratio
26:1
Teachers
99
Full Time Teachers
99
Teachers in First or Second Year
14%
College Prep
Average SAT
1370
Math
700
Verbal
670
Average ACT
31
Math
31
English
31
Reading
31
Science
30
Number of AP Courses
26
AP Pass Rate
87.2%
AP Math Enrollment
Very High
AP Science Enrollment
Very High
Other AP Enrollment
Very Low
Clubs and Activities
Girls Athletic Participation
Low
Boys Athletic Participation
Average

GreatSchools Rating

Source: GreatSchools
GreatSchools Rating
The GreatSchools Rating helps parents compare schools within a state based on a variety of school quality indicators and provides a helpful picture of how effectively each school serves all of its students. Ratings are on a scale of 1 (below average) to 10 (above average) and can include test scores, college readiness, academic progress, advanced courses, equity, discipline and attendance data. We also advise parents to visit schools, consider other information on school performance and programs, and consider family needs as part of the school selection process.
View GreatSchools Rating Methodology

GreatSchools Rating Details

Test Scores

Math
44%
State Average
19.4%
Science
17.8%
State Average
11.2%
GreatSchools Test Scores Rating
GreatSchools
The Test Score Rating reflects annual state test results for this school compared with scores statewide.

Teachers and Staff

Students Per Counselor
283:1

Student Diversity

Male
51.7%
Female
48.3%
Asian
67.2%
Hispanic
17.2%
White
5%
Filipino
4.7%
Two or more races
3.9%
Black
1.4%
Pacific Islander
<1%

School Rankings

#12 Best Magnet HS in California
#80 Best College Prep Public HS in California
#89 Best Public HS in California
Source: Niche

Specialty School Programs

AP Programs Offered
IB Programs Offered
Free/Reduced Lunch Offered
Athletics Program

Colleges Students are Considering

Students are most interested in or go on to attend these colleges.
University of California - Los Angeles 1,070 Students
University of California - Irvine 908 Students
University of California - San Diego 832 Students
University of California - Berkeley 766 Students
University of Southern California 683 Students
University of California - Santa Barbara 468 Students
California State University, Fullerton 432 Students
University of California - Davis 430 Students
University of California - Riverside 395 Students
California State Polytechnic University - Pomona 390 Students

What Students Want to Study

Niche users from this school are most interested in the following majors.
Biology 352 Students
Business 299 Students
Psychology 275 Students
Computer Science 162 Students
Nursing 143 Students
Pre-Medicine Studies 125 Students
Biochemistry and Molecular Biology 115 Students
Economics 99 Students
Chemistry 86 Students
Mechanical Engineering 83 Students

This School’s Reviews

Niche Reviews
3.9 665 Reviews
5.0 Freshman
4/26/2026
Friendly experience with plenty of AP classes and low level classes to explore. In general is many peoples pick over troy high school with may students going to Ivy League colleges.
4.0 Senior
8/28/2025
Diamond Bar High School is a very bright school, filled with students who are very eager to learn, and are diveresed in not only academics but the arts and sports.
4.0 Sophomore
7/25/2025
Some of the best parts of my school is that they offer many good academic courses but do not allow you to take some courses that seem interesting such as Philosophy unless you are an IB student. There is also no classes whatsoever about latino/hispanic heritage and they only offer AP Euro and World Modern History to sophomores. There is also a huge lack of diversity where they are all Asian and sometimes it makes you feel left our because I am Latina. One of the best experiences in my opinion was the friends i made and the community there that allows you to feel welcome.
GreatSchools Reviews
2.1 25 Reviews
1.0 student
6/26/2026
I'm putting this review in as a freshman who is shocked by how the school treats a student's death. This year, two students have died. Both occurred not too far from each other, maybe a few weeks away. The first was announced to our class by a counselor. I was shocked to find that after the student...
1.0 student
10/17/2025
I'm currently going to graduate in the year 2027. As a junior, I have to say that the only thing this school does is making you feel awful about yourself and emotionally numb nearly all the time. First, the environment, is completely competitive as many kids are taking AP Classes in and out of the s...
1.0 parent
5/7/2025
Kurt Davies has identified himself as this schools athletic director at a softball game. I saw him yelling at the coach of another school and belittling her for being a female. And he said she’s “just a special education teacher.” A man this disrespectful to women and rude to those with special need...
1.0 parent
4/20/2023
Filled with academic dishonesty and GLC's are doing nothing about it.

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Diamond Bar High School is a public school for students in grades 9-12 in Diamond Bar, CA, in the Diamond Bar neighborhood, and is served by the Walnut Valley Unified School District in California. Annual tuition is $0. The school has a total enrollment of 2,563 and maintains a student-teacher ratio of 26:1. Academic records show that 68% of students achieve proficiency in math, and 76% are proficient in reading. Diamond Bar High School has received feedback and ratings, with a Niche grade of A+ and a GreatSchools Rating of 10 out of 10. The average GPA is 3.68, the graduation rate is 97%, and average standardized test scores include an SAT score of 1370 and an ACT score of 31. The average home value in this area is $1,146,399. Discover additional schools in the area, like John A. Rowland High School, Brea Canyon High School, California University Preparatory School, and more. Learn more about what Diamond Bar has to offer, and browse homes for sale and for rent near Diamond Bar High School.

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