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Email BoardArroyo High
15701 Lorenzo Avenue, San Lorenzo, CA 94580-1407
Summary
Arroyo High is underperforming.
Reading and math results average to the 52nd percentile among comparable California schools.
Only 47.1% of students met California's reading standard, and it is trending down.
Math is weaker: 26.6% of students met California's math standard, and it is slowly trending down.
Proficiency stats
| Current Reading Proficiency | 47.1% |
| Current Math Proficiency | 26.6% |
| Reading State Rank | 912/1,596 (43rd percentile) |
| Math State Rank | 619/1,596 (61st percentile) |
School information
| Student / Teacher Ratio | 25:1 |
| Student enrollment (2024–25) | 1,499 |
| Low-Income Students | 977 (65.2%) |
| English Learners | 199 (13.3%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | No |
| Magnet school | No |
Test score trends
Reading fell 11.9 points from last year and fell 5.7 points over the full period. Math fell 4.5 points from last year and fell 3.7 points over the full period.
•Math -3.7 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
Asian and Filipino students have the strongest results.
Distribution of Scores by Grade
47.1% of tested students meet the reading standard in the grade shown. Overall, the school’s reading results rank No. 912 of 1,596 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 9.2-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
11.4% of English learners meet the reading standard, compared with 38.8% of English-only students. The gap narrowed as English-learner results rose and English-only results fell.
•Math Proficiency Scores
2026 state test results
Race and Ethnicity
Asian students have the strongest math results at about 59% proficiency. The other reported groups range from about 8% to 42%.
Distribution of Scores by Grade
26.6% of tested students meet the math standard in the grade shown. Overall, the school’s math results rank in the top 39% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 11.5-point math income gap is narrower than the 14.2-point gap at a typical California 9–12 school. It widened over the period shown.
•English Learners vs English Native
11.8% of English learners meet the math standard, compared with 19.6% of English-only students. The gap widened as English-learner results fell 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 4 9–12 schools in San Lorenzo Unified with 2026 results.
Explore the district’s schoolsHow does Arroyo High rank in California?
Arroyo High ranks No. 912 of 1,596 in reading and No. 619 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. 2 in both subjects among 3 9–12 district schools with reportable 2026 results for this group. 41.5% meet the reading standard and 19.7% meet the math standard.
See results by student groupHow does Arroyo High compare with other schools in San Lorenzo?
Arroyo High is No. 2 in both reading and math proficiency among the 4 9–12 schools in San Lorenzo with 2026 results.
Explore schools in San LorenzoHow does Arroyo High compare with other schools in Alameda County?
Arroyo High is No. 30 in reading and No. 24 in math proficiency among the 45 9–12 schools in Alameda County with 2026 results.
Explore schools in Alameda CountyWhich schools should I compare?
Schools serving 9–12 in the same district.
| School | Math | Reading |
|---|---|---|
| Arroyo HighThis school | 26.6% | 47.1% |
| East Bay Arts High | 25.0% | 38.5% |
| KIPP King Collegiate High | 46.4% | 83.2% |
