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Castaic High

High School
William S. Hart Union HighCastaicLos Angeles County91384
📍 31575 Valley Creek Road
Composite Score
out of 100
State Percentile
of high schools
State Rank
of 1,739 California high schools
🌱
Building Momentum

Every school has strengths the data doesn’t fully capture. Visit and see for yourself.

Composite scores are SchoolScope's analysis of public data from the California Dept. of Education (CAASPP, chronic absenteeism, suspension rates). They are not official CDE ratings and should not be the sole basis for school decisions. See methodology.

School overview

Enrollment
1,193 students
Student-Teacher Ratio
21:1
Free/Reduced Lunch
22%
Teachers
57 full-time

College & career readiness

Graduation Rate
97.6%
AP Exam Prepared
42.8%
A-G Completion
26.0%
College-Going Rate
76.9%

Data source: California Department of Education — ACGR, CCI, CGR reports

Dashboard indicators

ELA Year-over-Year
Increased Significantly
+21.6 pts DFS change
Math Year-over-Year
Increased
+13.7 pts DFS change
EL Proficiency (ELPAC)
16.1%
English learners at Level 4 (Well Developed) · 32 tested

Data source: California School Dashboard 2025, ELPAC 2024

Student demographics

Hispanic44.4%
White37.7%
Asian3.7%
Black4.7%
Other9.5%

Performance breakdown

Performance breakdown for Castaic High
CategoryPercentage
Exceeded Standard31.1%
Met Standard24.5%
Below Standard44.4%

What other rankings don't show you

Most rating sites report "56% proficient" for Castaic High and stop there. Here's what that number hides:

31.1% of students exceeded standard while 24.5% met it. That exceeded rate is 15.6 points above the state average of 15.5%. That's near the William S. Hart Union High district average of 30.8%. The gap between "met" and "exceeded" can reveal how much a school's curriculum challenges students beyond proficiency.

The graduation rate is 97.6% — above the state target. 26.0% of students complete A-G requirements for UC/CSU eligibility. 76.9% of graduates go on to college within a year.

Chronic absenteeism is 21.5%, better than the state average of 34.0%.

Why the exceeded vs. met split matters →

Key metrics

% Exceeded Standard
31.1%
Students scoring above proficient
% Met or Above
55.6%
Students meeting standard
Chronic Absenteeism
21.5%
Students missing 10%+ of days
Suspension Rate
2.6%
Students suspended at least once
Total Tested
529
Across all grades & subjects

ELA scores by grade

GradeTestedExceededMetNearly MetNot MetMet+Above
7th——————
8th5—————
11th26645.9%30.1%13.9%10.2%75.9%

Math scores by grade

GradeTestedExceededMetNearly MetNot MetMet+Above
7th——————
8th5—————
11th26316.4%19.0%26.2%38.4%35.4%
Estimated K-12 PathEstimate
High
Castaic High
61.4
This school

Estimated K-12 path based on district and proximity. Actual attendance zones may differ. Contact your school district for official feeder information.

Nearby schools

Nearby Elementary Schools

2 within ~3 mi · avg 52.2

See more on map →
All schools in Castaic →
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Data source: California Department of Education (2025 test year) · How we score · Explore all schools · Blog