Diamond Bar High
High Schools (Public)Grades 9–12Active
21400 Pathfinder Road, Diamond Bar, CA 91765-2747
(909) 594-1405
Overall Score (2024-25)
↓ 0.3 ptsvs 2023-2479
out of 100
StrongTop 11% statewideData completeness: 100%
Academic Achievement95
CA avg
Academic Growth55
CA avg
Equity57
CA avg
School Climate93
CA avg
College/Career Readiness78
CA avg
Score reflects percentile ranking among same-type schools. How is this calculated?
Test Scores (2024-25)
Percentage of students meeting or exceeding standards on CAASPP/CAST.
English Language Arts76.3%
CA avg 48.8%
Mathematics68.3%
CA avg 34.6%
Science / CAST (2024-25)53.6%
CA avg 32.7%
By Grade
| Grade | ELA % | Math % | Science % | Tested |
|---|---|---|---|---|
| 11 | 76.3% | 68.3% | — | 625 |
Enrollment & Demographics (2024-25)
2,563
Total Students
22.6%
Free/Reduced Lunch
7.4%
English Learners
Staff (2024-25)
26.0:1
Pupil-Teacher Ratio
Graduation Rates (2024-25)
↓ 1.4%95.8%
Graduation Rate
68.4%
Met UC/CSU Reqs
0.9%
Dropout Rate
Chronic Absenteeism (2024-25)
↑ 0.4%10.3%
Chronically Absent
2,622
Students Tracked
Historical Trends
Year-over-year performance data from official CDE records.
Composite Score
ELA Proficiency %
Math Proficiency %
Science / CAST %
Graduation Rate %
Chronic Absenteeism Rate %
Total Enrollment
Parent & Community Reviews
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Data sourced from the California Department of Education. CDS Code: 19734601932862. Academic Year: 2023-24 – 2024-25.