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Email BoardDel Sur Senior Elementary
9023 West Avenue H, Lancaster, CA 93536-8011
Summary
Del Sur Senior Elementary is badly underperforming.
Reading and math results average to the 37th percentile among comparable California schools.
Only 35.1% of students met California's reading standard, but it is trending up slightly.
Math is weaker: 26.4% of students met California's math standard, but it is trending up.
Proficiency stats
| Current Reading Proficiency | 35.1% |
| Current Math Proficiency | 26.4% |
| Reading State Rank | 1,171/1,734 (32nd percentile) |
| Math State Rank | 998/1,735 (43rd percentile) |
School information
| Student / Teacher Ratio | 27:1 |
| Student enrollment (2024–25) | 763 |
| Low-Income Students | 403 (53.2%) |
| English Learners | 61 (8.0%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | No |
| Magnet school | No |
Test score trends
Reading rose 0.8 points from last year and rose 2.4 points over the full period. Math rose 5.5 points from last year and rose 6.5 points over the full period.
•Math +6.5 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
White and Two or more races students have the strongest results.
Distribution of Scores by Grade
The share meeting the reading standard ranges from 21.2% to 47.7% across the grades shown. Overall, the school’s reading results rank No. 1,171 of 1,734 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 14.1-point reading income gap is narrower than the 16.5-point gap at a typical California K–8 school. It narrowed slightly over the period shown.
•English Learners vs English Native
10.4% of English learners meet the reading standard, compared with 36.6% 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
White students have the strongest math results at about 38% proficiency. The other reported groups range from about 8% to 37%.
Distribution of Scores by Grade
The share meeting the math standard ranges from 18.1% to 51.3% across the grades shown. Overall, the school’s math results rank No. 998 of 1,735 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 11.8-point math income gap is narrower than the 15.5-point gap at a typical California K–8 school. It widened slightly over the period shown.
•English Learners vs English Native
10.4% of English learners meet the math standard, compared with 28.2% of English-only students. The gap widened as English-learner results rose and English-only results rose.
•Progress as students move up
2023–2026
How we compare income gaps
“Typical” means the median gap across 802 schools for reading and 801 for math. The comparison uses 2026 California K–8 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 Del Sur Senior Elementary rank in California?
Del Sur Senior Elementary ranks No. 1,171 of 1,734 in reading and No. 998 of 1,735 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
How does Del Sur Senior Elementary compare with other schools in Lancaster?
Del Sur Senior Elementary is No. 1 in both reading and math proficiency among the 3 K–8 schools in Lancaster with 2026 results.
Explore schools in LancasterHow does Del Sur Senior Elementary compare with other schools in Los Angeles County?
Del Sur Senior Elementary is No. 110 in reading and No. 106 in math proficiency among the 145 K–8 schools in Los Angeles County with 2026 results.
Explore schools in Los Angeles CountyWhich schools should I compare?
Schools serving K–8 in the same district or city.
| School | Math | Reading |
|---|---|---|
| Del Sur Senior ElementaryThis school | 26.4% | 35.1% |
| iLEAD Lancaster Charter | 11.3% | 21.6% |
| Linda Verde Elementary | 15.5% | 22.7% |
