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Email BoardSan Dimas High
800 West Covina Boulevard, San Dimas, CA 91773-1473
Summary
San Dimas High is an excellent school.
Reading and math results average to the 90th percentile among comparable California schools.
80.6% of students met California's reading standard, and it is trending up.
50.4% of students met California's math standard, but it is trending up slightly.
Proficiency stats
| Current Reading Proficiency | 80.6% |
| Current Math Proficiency | 50.4% |
| Reading State Rank | 127/1,596 (92nd percentile) |
| Math State Rank | 194/1,596 (88th percentile) |
School information
| Student / Teacher Ratio | 21:1 |
| Student enrollment (2024–25) | 1,235 |
| Low-Income Students | 490 (39.7%) |
| English Learners | 39 (3.2%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | No |
| Magnet school | No |
Test score trends
Reading rose 4.6 points from last year and rose 3.4 points over the full period. Math rose 3.7 points from last year and rose 2.6 points over the full period.
•Math +2.6 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
Most students in every reported group meet the reading standard. Filipino and Asian students have the strongest results.
Distribution of Scores by Grade
80.6% of tested students meet the reading standard in the grade shown. Overall, the school’s reading results rank in the top 8% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 10.4-point reading income gap is narrower than the 14.7-point gap at a typical California 9–12 school. It widened over the period shown.
•English Learners vs English Native
Results for both language groups are unavailable, so a current reading gap cannot be calculated.
Math Proficiency Scores
2026 state test results
Race and Ethnicity
Asian students have the strongest math results at about 89% proficiency. The other reported groups range from about 44% to 87%.
Distribution of Scores by Grade
50.4% of tested students meet the math standard in the grade shown. Overall, the school’s math results rank in the top 13% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
Low-income students are 1.8 points ahead in math. It narrowed over the period shown.
•English Learners vs English Native
Results for both language groups are unavailable, so a current math gap cannot be calculated.
How we compare income gaps
“Typical” means the median gap across 876 schools for reading and 882 for math. The comparison uses 2026 California 9–12 schools with at least 20 tested students in each income group and a reported low-income student population. Each school counts once. Its gap is non-low-income proficiency minus low-income proficiency, including negative gaps. California state test data
Understanding this school
How does San Dimas High compare within the district?
San Dimas High is No. 2 in both reading and math proficiency among the 2 9–12 schools in Bonita Unified with 2026 results.
Explore the district’s schoolsHow does San Dimas High rank in California?
San Dimas High ranks No. 127 of 1,596 in reading and No. 194 of 1,596 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
How do low-income students at San Dimas High compare within the district?
Low-income students here rank No. 2 in both subjects among 2 9–12 district schools with reportable 2026 results for this group. 74.0% meet the reading standard and 51.5% meet the math standard.
See results by student groupHow does San Dimas High compare with other schools in San Dimas?
San Dimas High is No. 1 in both reading and math proficiency among the 2 9–12 schools in San Dimas with 2026 results.
Explore schools in San DimasHow does San Dimas High compare with other schools in Los Angeles County?
San Dimas High is No. 35 in reading and No. 43 in math proficiency among the 334 9–12 schools in Los Angeles County with 2026 results.
Explore schools in Los Angeles CountyWhich schools should I compare?
Schools serving 9–12 in the same district or city.
| School | Math | Reading |
|---|---|---|
| San Dimas HighThis school | 50.4% | 80.6% |
| Bonita High | 68.5% | 89.3% |
| Rockey, Glenn Camp | 0.0% | 0.0% |
