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Email BoardArroyo
1710 Arroyo Avenue, San Carlos, CA 94070-3809
Summary
Arroyo is a good school.
Reading and math results average to the 92nd percentile among comparable California schools.
77.1% of students met California's reading standard, but it is trending down.
75.1% of students met California's math standard, which is strong statewide but is trending down.
Proficiency stats
| Current Reading Proficiency | 77.1% |
| Current Math Proficiency | 75.1% |
| Reading State Rank | 360/4,657 (92nd percentile) |
| Math State Rank | 396/4,657 (92nd percentile) |
School information
| Student / Teacher Ratio | 21:1 |
| Student enrollment (2024–25) | 290 |
| Low-Income Students | 30 (10.3%) |
| English Learners | 10 (3.4%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | No |
| Magnet school | No |
Test score trends
Reading fell 5.7 points from last year and fell 3.7 points over the full period. Math fell 4.0 points from last year and fell 4.3 points over the full period.
•Math -4.3 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
Most students in every reported group meet the reading standard. Two or more races and Asian students have the strongest results.
Distribution of Scores by Grade
The share meeting the reading standard ranges from 75.2% to 79.0% across the grades 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 37.1-point reading income gap is nearly twice as wide as the 19.8-point gap at a typical California 4–5 school. It widened over the period shown.
•English Learners vs English Native
15.8% of English learners meet the reading standard, compared with 80.8% of English-only students.
Math Proficiency Scores
2026 state test results
Race and Ethnicity
Asian students have the strongest math results at about 91% proficiency. The other reported groups range from about 51% to 83%.
Distribution of Scores by Grade
The share meeting the math standard ranges from 71.8% to 78.4% across the grades shown. Overall, the school’s math results rank in the top 9% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 22.7-point math income gap is slightly wider than the 18.4-point gap at a typical California 4–5 school. It widened over the period shown.
•English Learners vs English Native
26.3% of English learners meet the math standard, compared with 78.5% of English-only students.
Progress as students move up
2023–2026
How we compare income gaps
“Typical” means the median gap across 7 schools for reading and 7 for math. The comparison uses 2026 California 4–5 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 compare within the district?
Arroyo is No. 2 in both reading and math proficiency among the 2 4–5 schools in San Carlos Elementary with 2026 results.
Explore the district’s schoolsHow does Arroyo rank in California?
Arroyo ranks No. 360 of 4,657 in reading and No. 396 of 4,657 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
How do low-income students at Arroyo compare within the district?
Low-income students here rank No. 2 in reading and No. 1 in math among 2 4–5 district schools with reportable 2026 results for this group. 44.7% meet the reading standard and 55.3% meet the math standard.
See results by student groupHow does Arroyo compare with other schools in San Carlos?
Arroyo is No. 2 in both reading and math proficiency among the 2 4–5 schools in San Carlos with 2026 results.
Explore schools in San CarlosHow does Arroyo compare with other schools in San Mateo County?
Arroyo is No. 2 in both reading and math proficiency among the 2 4–5 schools in San Mateo County with 2026 results.
Explore schools in San Mateo CountyWhich schools should I compare?
Schools serving 4–5 in the same district.
| School | Math | Reading |
|---|---|---|
| ArroyoThis school | 75.1% | 77.1% |
| Mariposa | 78.5% | 77.7% |
