Diamond Ranch High
High SchoolSchool overview
College & career readiness
Data source: California Department of Education — ACGR, CCI, CGR reports
Dashboard indicators
Data source: California School Dashboard 2025, ELPAC 2024
Student demographics
Performance breakdown
| Category | Percentage |
|---|---|
| Exceeded Standard | 20.9% |
| Met Standard | 26.2% |
| Below Standard | 52.9% |
What other rankings don't show you
Most rating sites report "47% proficient" for Diamond Ranch High and stop there. Here's what that number hides:
20.9% of students exceeded standard while 26.2% merely met it. That exceeded rate is 5.4 points above the state average of 15.5%. That's 9.2 points above the Pomona Unified district average of 11.7%. Compared to the 3 nearby schools within ~3 miles, this exceeded rate is 11.1 points higher (vs 9.8% average). The gap between "met" and "exceeded" is the difference between a school that clears the bar and one that raises it.
The graduation rate is 95.8% — above the state target. 53.3% of students complete A-G requirements for UC/CSU eligibility — a strong college readiness signal. 79.6% of graduates go on to college within a year.
Chronic absenteeism is 23.6%, better than the state average of 34.0%.
Key metrics
ELA scores by grade
| Grade | Tested | Exceeded | Met | Met+Above |
|---|---|---|---|---|
| 11th | 380 | 32.4% | 35.5% | 67.9% |
Math scores by grade
| Grade | Tested | Exceeded | Met | Met+Above |
|---|---|---|---|---|
| 11th | 380 | 9.5% | 16.8% | 26.3% |
K-12 Feeder PathBoundary data
Feeder patterns derived from 2015-16 NCES attendance boundary data. Boundaries may have changed. Contact your school district for current information.
Nearby schools
Nearby High Schools
3 within ~3 mi · avg 48.6
Nearby Elementary Schools
18 within ~3 mi · avg 49.7
Data source: California Department of Education (2025 test year) · How we score