Arroyo High
4921 North Cedar Avenue, El Monte, CA 91732-1099
Summary
Reading and math results average to the 78th percentile among comparable California schools.
68.3% of students met California's reading standard, and it is trending up.
Math is weaker: 39.1% of students met California's math standard, but it is trending up slightly.
Proficiency stats
| Current Reading Proficiency | 68.3% |
| Current Math Proficiency | 39.1% |
| Reading State Rank | 354/1,596 (78th percentile) |
| Math State Rank | 352/1,596 (78th percentile) |
School information
| Student / Teacher Ratio | 21:1 |
| Student enrollment (2024–25) | 1,638 |
| Low-Income Students | 1,378 (84.1%) |
| English Learners | 221 (13.5%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | No |
| Magnet school | No |
Test score trends
Reading rose 7.1 points from last year and rose 5.5 points over the full period. Math fell 1.0 points from last year and rose 3.0 points over the full period.
•Math +3.0 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 Hispanic or Latino students have the strongest results.
Distribution of Scores by Grade
68.3% of tested students meet the reading standard in the grade shown. Overall, the school’s reading results rank in the top 23% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 10.6-point reading income gap is narrower than the 14.7-point gap at a typical California 9–12 school. It narrowed over the period shown.
•
English Learners vs English Native
13.5% of English learners meet the reading standard, compared with 64.8% 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 77% proficiency. The other reported groups range from about 26% to 26%.
Distribution of Scores by Grade
39.1% of tested students meet the math standard in the grade shown. Overall, the school’s math results rank in the top 23% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 12.7-point math income gap is narrower than the 14.2-point gap at a typical California 9–12 school. It narrowed over the period shown.
•English Learners vs English Native
13.3% of English learners meet the math standard, compared with 31.2% of English-only students. The gap narrowed as English-learner results rose and English-only results rose.
•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 Arroyo High compare within the district?
Arroyo High is No. 2 in both reading and math proficiency among the 5 9–12 schools in El Monte Union High with 2026 results.
Explore the district’s schoolsHow does Arroyo High rank in California?
Arroyo High ranks No. 354 of 1,596 in reading and No. 352 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 Arroyo High compare within the district?
Low-income students here rank No. 3 in reading and No. 2 in math among 5 9–12 district schools with reportable 2026 results for this group. 66.8% meet the reading standard and 37.3% meet the math standard.
See results by student groupHow does Arroyo High compare with other schools in El Monte?
Arroyo High is No. 1 in both reading and math proficiency among the 3 9–12 schools in El Monte with 2026 results.
Explore schools in El MonteHow does Arroyo High compare with other schools in Los Angeles County?
Arroyo High is No. 101 in reading and No. 89 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.
| School | Math | Reading |
|---|---|---|
| Arroyo HighThis school | 39.1% | 68.3% |
| El Monte High | 37.5% | 68.3% |
| Mountain View High | 15.1% | 46.0% |
