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Email BoardCastaic High
31575 Valley Creek Road, Castaic, CA 91384
Summary
Castaic High is a good school.
Reading and math results average to the 78th percentile among comparable California schools.
70.0% of students met California's reading standard, and it is holding steady.
Math is weaker: 36.8% of students met California's math standard, but it is trending up.
Proficiency stats
| Current Reading Proficiency | 70.0% |
| Current Math Proficiency | 36.8% |
| Reading State Rank | 136/1,734 (92nd percentile) |
| Math State Rank | 629/1,735 (64th percentile) |
School information
| Student / Teacher Ratio | 24:1 |
| Student enrollment (2024–25) | 1,159 |
| Low-Income Students | 271 (23.4%) |
| English Learners | 31 (2.7%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | No |
| Magnet school | No |
Test score trends
Reading fell 4.3 points from last year and fell 0.4 points over the full period. Math rose 2.4 points from last year and rose 7.3 points over the full period.
•Math +7.3 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 White students have the strongest results.
Distribution of Scores by Grade
71.1% of tested students meet the reading standard in the grade 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 15.5-point reading income gap is slightly wider than the 14.1-point gap at a typical California 8–12 school. It widened slightly 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
Two or more races students have the strongest math results at about 50% proficiency. The other reported groups range from about 11% to 43%.
Distribution of Scores by Grade
37.4% of tested students meet the math standard in the grade shown. Overall, the school’s math results rank in the top 37% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 5.7-point math income gap is narrower than the 10.6-point gap at a typical California 8–12 school. It narrowed over the period shown.
•English Learners vs English Native
Results for both language groups are unavailable, so a current math gap cannot be calculated.
How we compare income gaps
“Typical” means the median gap across 15 schools for reading and 15 for math. The comparison uses 2026 California 8–12 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 Castaic High compare within the district?
Castaic High is No. 1 in both reading and math proficiency among the 2 8–12 schools in William S. Hart Union High with 2026 results.
Explore the district’s schoolsHow does Castaic High rank in California?
Castaic High ranks No. 136 of 1,734 in reading and No. 629 of 1,735 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
How do low-income students at Castaic High compare within the district?
Low-income students here rank No. 1 in both subjects among 2 8–12 district schools with reportable 2026 results for this group. 60.4% meet the reading standard and 33.3% meet the math standard.
See results by student groupHow does Castaic High compare with other schools in Los Angeles County?
Castaic High is No. 1 in both reading and math proficiency among the 4 8–12 schools in Los Angeles County with 2026 results.
Explore schools in Los Angeles CountyWhich schools should I compare?
Schools serving 8–12 in the same district.
| School | Math | Reading |
|---|---|---|
| Castaic HighThis school | 36.8% | 70.0% |
| Mission View Public | 0.0% | 34.4% |
