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Email BoardCasillas (Joseph) Elementary
1130 East J Street, Chula Vista, CA 91910-7164
Summary
Casillas (Joseph) Elementary is underperforming.
Reading and math results average to the 62nd percentile among comparable California schools.
52.4% of students met California's reading standard, but it is slowly trending down.
Math is weaker: 44.9% of students met California's math standard, but it is slowly trending up.
Proficiency stats
| Current Reading Proficiency | 52.4% |
| Current Math Proficiency | 44.9% |
| Reading State Rank | 1,688/4,657 (64th percentile) |
| Math State Rank | 1,854/4,657 (60th percentile) |
School information
| Student / Teacher Ratio | 20:1 |
| Student enrollment (2024–25) | 431 |
| Low-Income Students | 195 (45.2%) |
| English Learners | 72 (16.7%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | No |
| Magnet school | No |
Test score trends
Reading fell 6.5 points from last year and fell 3.2 points over the full period. Math fell 0.1 points from last year and rose 3.2 points over the full period.
•Math +3.2 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
Filipino and Two or more races students have the strongest results.
Distribution of Scores by Grade
The share meeting the reading standard ranges from 40.7% to 60.9% across the grades shown. Overall, the school’s reading results rank in the top 37% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 24.5-point reading income gap is wider than the 17.6-point gap at a typical California K–6 school. It widened over the period shown.
•English Learners vs English Native
16.7% of English learners meet the reading standard, compared with 52.1% 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
Filipino students have the strongest math results at about 83% proficiency. The other reported groups range from about 33% to 61%.
Distribution of Scores by Grade
The share meeting the math standard ranges from 39.0% to 52.6% across the grades shown. Overall, the school’s math results rank in the top 40% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 21.9-point math income gap is slightly wider than the 17.5-point gap at a typical California K–6 school. It narrowed slightly over the period shown.
•English Learners vs English Native
15.4% of English learners meet the math standard, compared with 44.6% of English-only students. The gap widened as English-learner results fell and English-only results rose.
•Progress as students move up
2023–2026
How we compare income gaps
“Typical” means the median gap across 1,479 schools for reading and 1,483 for math. The comparison uses 2026 California K–6 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 Casillas (Joseph) Elementary compare within the district?
Casillas (Joseph) Elementary is No. 23 in reading and No. 22 in math proficiency among the 44 K–6 schools in Chula Vista Elementary with 2026 results.
Explore the district’s schoolsHow does Casillas (Joseph) Elementary rank in California?
Casillas (Joseph) Elementary ranks No. 1,688 of 4,657 in reading and No. 1,854 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 Casillas (Joseph) Elementary compare within the district?
Low-income students here rank No. 29 in reading and No. 26 in math among 44 K–6 district schools with reportable 2026 results for this group. 37.6% meet the reading standard and 31.7% meet the math standard.
See results by student groupHow does Casillas (Joseph) Elementary compare with other schools in Chula Vista?
Casillas (Joseph) Elementary is No. 20 in both reading and math proficiency among the 38 K–6 schools in Chula Vista with 2026 results.
Explore schools in Chula VistaHow does Casillas (Joseph) Elementary compare with other schools in San Diego County?
Casillas (Joseph) Elementary is No. 51 in reading and No. 52 in math proficiency among the 116 K–6 schools in San Diego County with 2026 results.
Explore schools in San Diego CountyWhich schools should I compare?
Schools serving K–6 in the same district.
| School | Math | Reading |
|---|---|---|
| Casillas (Joseph) ElementaryThis school | 44.9% | 52.4% |
| Camarena (Enrique S.) Elementary | 57.9% | 63.7% |
| Castle Park Elementary | 33.0% | 45.6% |
