Average
#5554 of 9,539 schools in CA
Castaic High
High School · William S. Hart Union High · Castaic, CA
A William S. Hart Union High high school where students score 12 points below what's typical for similar communities.
31575 Valley Creek Rd., Castaic, CA 91384
- Math 30% vs CA 32% (2024)
- Reading 71% vs CA 52% (2024)
- 50%+ 4-year graduation
Academics
Partial Profile · 3/4 metricsRequires 2+ years of test data
View breakdown
View breakdown
View breakdown
Students at Castaic High score 50% proficient, which is below what's typical for similar communities (expected: 62%).
Component weights adjusted due to data availability.
2024 CAASPP proficiency
Most recent published year. School vs. CA average.
Equity & diversity
Shown separately, not included in the overall scoreFree/reduced lunch
22.1%
Students qualifying for federal meal assistance
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
See how we rateThe neighborhood
Where Castaic High sits, and what the surrounding area looks like.
Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the Los Angeles map →
Getting around & local context
- Walk 4Car-Dependent
- County Safety: Low245/100K
Powered by
FBI Uniform Crime Reporting · 2024 · county context, not school-level safety or attendance eligibility. Source details
Source period: 2024. A newer release may be available.
Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)
Median income
$129,603
Median home value
$693,600
Median rent
$1,730/mo
College educated
31.7%
Homeownership
84.3%
Poverty rate
4.5%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 91384; this is area context, not an attendance boundary.
Programs & students
Programs & Offerings
Compare nearby
Nearby same-level schools
4 from a 5-mile search; district fallback available
| School | Score | Grades | Distance | Enrollment | Compare |
|---|---|---|---|---|---|
| Higher Calling AcademyPrivate · tuition | Not rated | 5–12 | 3.2 mi | 6 | Compare → |
| Santa Clarita Valley InternationalCharter · enrollment unverified | 5.7 | K–12 | 3.5 mi | 685 | Compare → |
| Canyon HighEnrollment path unverified | 7.1 | 9–12 | Not available | 1,966 | Compare → |
| Saugus HighEnrollment path unverified | 7.8 | 9–12 | Not available | 2,295 | Compare → |
Distance is proximity only; it is not attendance eligibility.
Private · tuition: Potential private option; tuition and admission requirements have not been verified.
Charter · enrollment unverified: Potential charter option; enrollment requirements have not been verified.
Enrollment path unverified: Potential public school; its attendance or application path has not been classified.
William S. Hart Union High
- Schools in district
- 16
- Rank in district
- #14 of 16
- District spending per student
- $15,278NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- 7.2%Census SAIPE · 2024
Castaic High is listed in William S. Hart Union High; a district label does not verify attendance for an address.
About Castaic High
Castaic High is a public high school in Castaic, CA, part of William S. Hart Union High, serving approximately 1,193 students in grades 9th-12th with a 20.9:1 student-teacher ratio. It holds a MySchoolScout rating of 6.0 out of 10 and ranks #5,554 of 9,539 schools in CA.
State assessment records show 30% math proficiency (2024 CAASPP) and 71% reading/ELA proficiency (2024 CAASPP).
Frequently asked questions
Common questions about Castaic High
What grades does Castaic High serve?
Castaic High serves students in grades 9th through 12th.
How many students attend Castaic High?
Castaic High has an enrollment of approximately 1,193 students.
What is the student-teacher ratio at Castaic High?
The student-teacher ratio at Castaic High is 20.9:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Castaic High rank in CA?
Castaic High ranks #5,554 of 9,539 schools in CA.
What is Castaic High's MySchoolScout rating?
Castaic High has a current MySchoolScout rating of 6.0 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Castaic High?
Based on loaded state assessment records, Castaic High has 30% math proficiency (2024 CAASPP) and 71% reading/ELA proficiency (2024 CAASPP).
Is Castaic High a charter school?
No, Castaic High is not a charter school. It is a traditional public school operated by the local school district.
Is Castaic High a Title I school?
No, Castaic High is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Castaic High?
22.1% of students at Castaic High qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
School factsNCES Common Core of Data (CCD) (SY 2023–24)
- Grades
- 9th – 12th
- Enrollment
- 1,193
- Student-Teacher Ratio
- 20.9:1
- Teachers (FTE)
- 57
- Type
- regular
- Setting
- Fringe Rural
- County
- Los Angeles County
- Chronic Absenteeism (SY 2022-23)
- 20.5%
- Phone
- (661) 888-6288
- 4-Year Graduation
- 50%+
- Area population (ZIP 91384)
- 27,278
- Area average commute
- 31.5 min
- Area median age
- 35.1
About this school's data
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.
- School directory (enrollment, grades, staff, contact)
- NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
- Source period: SY 2023–24. A newer release may be available.
- MySchoolScout rating and rank
- MySchoolScout ranking model · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
- Math proficiency
- State department of education · 2024 CAASPP · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: 2024 CAASPP. A newer release may be available.
- Derived from source records rather than read directly from one field.
- Reading/ELA proficiency
- State department of education · 2024 CAASPP · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: 2024 CAASPP. A newer release may be available.
- Derived from source records rather than read directly from one field.
- Neighborhood (income, housing, education)
- U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
- Older source: ACS 2019–2023 5-year estimates. Use as historical context.
- Reported for the ZCTA for ZIP 91384; this does not measure the attendance area.
- Programs (AP/IB, athletics, gifted)
- CRDC via Urban Institute · SY 2021–22 · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: SY 2021–22. A newer release may be available.
Evidence periods: Rating mixed/unknown input periods; assessments 2024 CAASPP; directory SY 2023–24
Related reading
- Best Elementary Schools in America: 2026 Rankingsbest schools
- Best Public Schools in California 2026: Top-Ranked Elementary, Middle & High Schoolsbest schools
- Best School Districts to Move To in 2026: A Data-Driven Guidebest schools
- Best Schools in Los Angeles, CA — 2026 Rankingsbest schools
- Best Schools in San Diego, CA — 2026 Rankingsbest schools
Get school insights in your inbox
New rankings, best-schools lists, and parent guides — delivered free. No spam, unsubscribe anytime.
We respect your privacy. Unsubscribe at any time.