For the 2026 school year, there are 10 public schools serving 8,396 students in Diamond Bar, CA (there are 8 private schools, serving 589 private students). 94% of all K-12 students in Diamond Bar, CA are educated in public schools (compared to the CA state average of 90%). Diamond Bar has one of the highest concentrations of top-ranked public schools in California.
The top-ranked public schools in Diamond Bar, CA are Maple Hill Elementary School, Quail Summit Elementary School and Chaparral Middle School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Diamond Bar, CA public schools have an average math proficiency score of 64% (versus the California public school average of 34%), and reading proficiency score of 72% (versus the 47% statewide average). Schools in Diamond Bar have an average ranking of 10/10, which is in the top 10% of California public schools.
Minority enrollment is 96% of the student body (majority Asian), which is more than the California public school average of 80% (majority Hispanic).
Best Public Schools in Diamond Bar, CA (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Maple Hill Elementary School
(Math: 86% | Reading: 82%)
Rank:
Rank:
10/
Top 5%10
1350 Maple Hill Rd.
Diamond Bar, CA 91765
(909) 861-6224
Diamond Bar, CA 91765
(909) 861-6224
Gr: K-5 | 556 students Student-teacher ratio: 26:1 Minority enrollment: 97%
Rank: #22.
Quail Summit Elementary School
(Math: 83% | Reading: 79%)
Rank:
Rank:
10/
Top 5%10
23330 East Quail Summit Dr.
Diamond Bar, CA 91765
(909) 861-3004
Diamond Bar, CA 91765
(909) 861-3004
Gr: K-5 | 696 students Student-teacher ratio: 25:1 Minority enrollment: 97%
Rank: #33.
Chaparral Middle School
(Math: 74% | Reading: 80%)
Rank:
Rank:
10/
Top 5%10
1405 South Spruce Tree Dr.
Diamond Bar, CA 91765
(909) 861-6227
Diamond Bar, CA 91765
(909) 861-6227
Gr: 6-8 | 1,349 students Student-teacher ratio: 28:1 Minority enrollment: 96%
Rank: #44.
Pantera Elementary School
(Math: 74% | Reading: 78%)
Rank:
Rank:
10/
Top 10%10
801 Pantera Dr.
Diamond Bar, CA 91765
(909) 397-4475
Diamond Bar, CA 91765
(909) 397-4475
Gr: K-6 | 512 students Student-teacher ratio: 23:1 Minority enrollment: 95%
Rank: #55.
Diamond Bar High School
(Math: 68% | Reading: 78%)
Rank:
Rank:
10/
Top 10%10
21400 Pathfinder Rd.
Diamond Bar, CA 91765
(909) 594-1405
Diamond Bar, CA 91765
(909) 594-1405
Gr: 9-12 | 2,563 students Student-teacher ratio: 26:1 Minority enrollment: 95%
Rank: #66.
Evergreen Elementary School
(Math: 69% | Reading: 74%)
Rank:
Rank:
10/
Top 10%10
2450 South Evergreen Springs
Diamond Bar, CA 91765
(909) 594-1041
Diamond Bar, CA 91765
(909) 594-1041
Gr: K-5 | 709 students Student-teacher ratio: 25:1 Minority enrollment: 97%
Rank: #77.
Castle Rock Elementary School
(Math: 69% | Reading: 71%)
Rank:
Rank:
10/
Top 10%10
2975 Castle Rock Rd.
Diamond Bar, CA 91765
(909) 598-5006
Diamond Bar, CA 91765
(909) 598-5006
Gr: K-5 | 684 students Student-teacher ratio: 26:1 Minority enrollment: 97%
Rank: #88.
Armstrong Elementary School
(Math: 40-44% | Reading: 50-54%)
Rank:
Rank:
7/
Top 50%10
22750 Beaverhead Dr.
Diamond Bar, CA 91765
(909) 397-4563
Diamond Bar, CA 91765
(909) 397-4563
Gr: K-6 | 251 students Student-teacher ratio: 18:1 Minority enrollment: 90%
Rank: #99.
Golden Springs Elementary School
(Math: 32% | Reading: 45-49%)
Rank:
Rank:
6/
Top 50%10
245 South Ballena Dr.
Diamond Bar, CA 91765
(909) 397-4596
Diamond Bar, CA 91765
(909) 397-4596
Gr: K-6 | 388 students Student-teacher ratio: 24:1 Minority enrollment: 94%
Rank: #1010.
Lorbeer Middle School
(Math: 26% | Reading: 52%)
Rank:
Rank:
6/
Top 50%10
501 Diamond Bar Blvd.
Diamond Bar, CA 91765
(909) 397-4527
Diamond Bar, CA 91765
(909) 397-4527
Gr: 7-8 | 688 students Student-teacher ratio: 24:1 Minority enrollment: 95%
Frequently Asked Questions
What are the top-ranked public schools in Diamond Bar, CA?
The top-ranked public schools in Diamond Bar, CA include Maple Hill Elementary School, Quail Summit Elementary School and Chaparral Middle School. Diamond Bar has one of the highest concentrations of top-ranked public schools in California.
How many public schools are located in Diamond Bar?
10 public schools are located in Diamond Bar.
What percentage of students in Diamond Bar go to public school?
94% of all K-12 students in Diamond Bar are educated in public schools (compared to the CA state average of 90%).
What is the racial composition of students in Diamond Bar?
Diamond Bar public schools minority enrollment is 96% of the student body (majority Asian), which is more than the California public schools average of 80% (majority Hispanic).
Which public schools in Diamond Bar are often viewed compared to one another?
Popular comparisons of public schools in Diamond Bar include: Maple Hill Elementary School vs. Quail Summit Elementary School, Quail Summit Elementary School vs. Maple Hill Elementary School, Pantera Elementary School vs. Quail Summit Elementary School
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