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Email BoardAtherwood Elementary
2350 East Greensward Street, Simi Valley, CA 93065-1430
Summary
Atherwood Elementary is underperforming.
Reading and math results average to the 49th percentile among comparable California schools.
Only 44.3% of students met California's reading standard, and it is trending down slightly.
Math is weaker: 36.2% of students met California's math standard, and it is trending down.
Proficiency stats
| Current Reading Proficiency | 44.3% |
| Current Math Proficiency | 36.2% |
| Reading State Rank | 2,296/4,657 (51st percentile) |
| Math State Rank | 2,485/4,657 (47th percentile) |
School information
| Student / Teacher Ratio | 20:1 |
| Student enrollment (2024–25) | 456 |
| Low-Income Students | 154 (34.5%) |
| English Learners | 27 (6.1%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | No |
| Magnet school | No |
Test score trends
Reading was unchanged from last year and fell 1.3 points over the full period. Math fell 7.5 points from last year and fell 7.7 points over the full period.
•Math -7.7 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
White and Hispanic or Latino students have the strongest results.
Distribution of Scores by Grade
The share meeting the reading standard ranges from 39.1% to 52.8% across the grades shown. Overall, the school’s reading results rank in the top 50% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 15.8-point reading income gap is narrower than the 19.8-point gap at a typical California K–5 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 42% proficiency. The other reported groups range from about 29% to 40%.
Distribution of Scores by Grade
The share meeting the math standard ranges from 31.9% to 44.9% across the grades shown. Overall, the school’s math results rank No. 2,485 of 4,657 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 26.8-point math income gap is wider than the 20.0-point gap at a typical California K–5 school. It widened over the period shown.
•English Learners vs English Native
Results for both language groups are unavailable, so a current math gap cannot be calculated.
Progress as students move up
2023–2026
How we compare income gaps
“Typical” means the median gap across 1,832 schools for reading and 1,839 for math. The comparison uses 2026 California K–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 Atherwood Elementary compare within the district?
Atherwood Elementary is No. 11 in both reading and math proficiency among the 18 K–5 schools in Simi Valley Unified with 2026 results.
Explore the district’s schoolsHow does Atherwood Elementary rank in California?
Atherwood Elementary ranks No. 2,296 of 4,657 in reading and No. 2,485 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 Atherwood Elementary compare within the district?
Low-income students here rank No. 12 in reading and No. 14 in math among 18 K–5 district schools with reportable 2026 results for this group. 34.6% meet the reading standard and 19.8% meet the math standard.
See results by student groupHow does Atherwood Elementary compare with other schools in Simi Valley?
Atherwood Elementary is No. 11 in both reading and math proficiency among the 18 K–5 schools in Simi Valley with 2026 results.
Explore schools in Simi ValleyHow does Atherwood Elementary compare with other schools in Ventura County?
Atherwood Elementary is No. 46 in reading and No. 49 in math proficiency among the 91 K–5 schools in Ventura County with 2026 results.
Explore schools in Ventura CountyWhich schools should I compare?
Schools serving K–5 in the same district.
| School | Math | Reading |
|---|---|---|
| Atherwood ElementaryThis school | 36.2% | 44.3% |
| Arroyo Elementary | 23.3% | 29.9% |
| Berylwood Elementary | 18.7% | 25.9% |
