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Email BoardGlendora High
1600 East Foothill Boulevard, Glendora, CA 91741-3024
Summary
Reading and math results average to the 82nd percentile among comparable California schools.
67.0% of students met California's reading standard, and it is trending up slightly.
51.8% of students met California's math standard, but it is trending up slightly.
Proficiency stats
| Current Reading Proficiency | 67.0% |
| Current Math Proficiency | 51.8% |
| Reading State Rank | 399/1,596 (75th percentile) |
| Math State Rank | 183/1,596 (89th percentile) |
School information
| Student / Teacher Ratio | 24:1 |
| Student enrollment (2024–25) | 2,069 |
| Low-Income Students | 439 (21.2%) |
| English Learners | 91 (4.4%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | No |
| Magnet school | No |
Test score trends
Reading fell 4.9 points from last year and rose 1.2 points over the full period. Math fell 2.9 points from last year and rose 2.2 points over the full period.
•Math +2.2 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
Most students in every reported group meet the reading standard. Asian and White students have the strongest results.
Distribution of Scores by Grade
67.0% of tested students meet the reading standard in the grade shown. Overall, the school’s reading results rank in the top 25% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 21.3-point reading income gap is wider than the 14.7-point gap at a typical California 9–12 school. It narrowed over the period shown.
•
English Learners vs English Native
11.8% of English learners meet the reading standard, compared with 68.7% of English-only students. The gap narrowed as English-learner results rose and English-only results rose.
•Math Proficiency Scores
2026 state test results
Race and Ethnicity
Asian students have the strongest math results at about 84% proficiency. The other reported groups range from about 39% to 58%.
Distribution of Scores by Grade
51.8% of tested students meet the math standard in the grade shown. Overall, the school’s math results rank in the top 12% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 23.6-point math income gap is wider than the 14.2-point gap at a typical California 9–12 school. It narrowed slightly over the period shown.
•English Learners vs English Native
English-learner math proficiency held steady at 10.5%, while English-only results rose. The gap widened.
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 Glendora High compare within the district?
Glendora High is No. 1 in both reading and math proficiency among the 2 9–12 schools in Glendora Unified with 2026 results.
Explore the district’s schoolsHow does Glendora High rank in California?
Glendora High ranks No. 399 of 1,596 in reading and No. 183 of 1,596 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
How does Glendora High compare with other schools in Glendora?
Glendora High is No. 1 in both reading and math proficiency among the 3 9–12 schools in Glendora with 2026 results.
Explore schools in GlendoraHow does Glendora High compare with other schools in Los Angeles County?
Glendora High is No. 110 in reading and No. 39 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 |
|---|---|---|
| Glendora HighThis school | 51.8% | 67.0% |
| Whitcomb Continuation High | 0.0% | 14.3% |
| Arrow High (Continuation) | 10.5% | 5.3% |
