Castaic Union School District
School District · Valencia, California
Avg Rating
6.6
out of 10
Schools
4
3 elem, 1 mid
Per-Pupil Spending
$15,149
Student-Teacher Ratio
25.2:1
Avg Rating
6.6
out of 10
Schools
4
3 elem, 1 mid
Per-Pupil Spending
$15,149
Student-Teacher Ratio
25.2:1
Evaluating Castaic Union?
A district shares budget, policy, and attendance zones across its schools — use this page to judge Castaic Union as a whole, then compare how its individual schools differ.
Shortlist starter
Start with these real page-level signals, then use the full table and map below.
Castaic Middle
Castaic · Middle. Compare this profile against district averages, level fit, and attendance-zone reality below.
Castaic Elementary
Castaic · Elementary. Compare this profile against district averages, level fit, and attendance-zone reality below.
Northlake Hills Elementary
Castaic · Elementary. Compare this profile against district averages, level fit, and attendance-zone reality below.
How this district compares
California rank
#263 of 713
districts by avg. composite
Vs. state average
+0.3
above California avg
Per-pupil spending
$15,149
$2,498 vs California median
District size
1,938 students
Smaller than California median
The short answer
Castaic Union ranks #263 of 713 California districts by overall school rating. Castaic Union's schools with real test data average 6.6/10 across 4 schools. Its top-rated schools are Castaic Middle (6.9/10), Castaic Elementary (6.7/10), and Northlake Hills Elementary (6.6/10). Schools with estimated (proxy) scores are excluded from this ranking.
STAAR proficiency rose +3.3 points from 2022 to 2024. That's the biggest jump among Castaic Union schools across the two most recent comparable testing years.
Top-Rated Schools in Castaic Union
Ranked by MySchoolScout composite rating using only schools with real test data (4 of 4). "Value" = points above what student poverty predicts. Estimated (proxy) scores are excluded.
| # | School | Rating |
|---|---|---|
| 1 | Castaic Middle | 6.9 / 10 |
| 2 | Castaic Elementary | 6.7 / 10 |
| 3 | Northlake Hills Elementary | 6.6 / 10 |
| 4 | Live Oak Elementary | 6.2 / 10 |
See all 4 schools — including those with estimated data — in the full directory below. How we rate schools.
About Castaic Union
Castaic Union is a Valencia, California school district serving 4 schools. The district educates 1,938 students with a student-teacher ratio of 25.2:1. The district invests $15,149 per student annually.
With an average rating of 6.6/10, Castaic Union demonstrates solid academic performance.
The highest-rated school in the district is Castaic Middle, which has a composite score of 6.9/10.
In standardized testing, Castaic Union students show an average math proficiency of 49.1% and ELA proficiency of 59.0%.
The district includes 3 elementary schools , 1 middle school .
District Map
Schools in Castaic Union, colored by MySchoolScout rank. Click a pin for details.
District Average Test Scores
Average proficiency across all schools in Castaic Union with test data.
Schools in Castaic Union
4 schools Elementary Schools 3
Middle Schools 1
District Details
- State
- California
- City
- Valencia
- Total Enrollment
- 1,938
- Teachers (FTE)
- 77
- Child Poverty Rate
- 0.1%
- Data Year
- 2023
Frequently Asked Questions
How many schools are in Castaic Union?
Castaic Union has 4 schools in total — 3 elementary, 1 middle. You can explore each school's ratings and details on this page.
What is the average rating for Castaic Union?
The average composite rating for Castaic Union is 6.6/10. This score is calculated from the individual ratings of all schools with academic data in the district.
What is the per-pupil spending in Castaic Union?
Castaic Union spends $15,149 per student per year.
What is the student-teacher ratio in Castaic Union?
The average student-teacher ratio in Castaic Union is 25.2:1.
What is the top-rated school in Castaic Union?
Castaic Middle is the highest-rated school in Castaic Union with a composite score of 6.9/10.
What are the test scores in Castaic Union?
Across schools in Castaic Union with test data, the average math proficiency is 49.1% and the average ELA (reading/writing) proficiency is 59.0%. These figures represent the percentage of students meeting or exceeding grade-level standards.
How does Castaic Union compare to other districts in California?
Castaic Union has an average school rating of 6.6/10 across 4 schools. Families can compare this to other districts in California by visiting individual district pages. Factors like school size, available programs, and community demographics also play a role in choosing the right fit.
How does MySchoolScout rate schools?
MySchoolScout ratings blend student growth, poverty-adjusted academic performance, and learning environment — plus college readiness for high schools. Weights vary by school level, and equity data is shown for context without being factored into the score. Learn more about our rating system on our methodology page.
District Averages
- Overall Rating
- 6.6/10
- Math Proficiency
- 49.1%
- ELA Proficiency
- 59.0%
Resources
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 rateOther School Districts in CA
Compare Castaic Union with neighboring districts in the state.
- Los Angeles Unified (785)
- San Diego Unified (175)
- San Francisco Unified (113)
- Fresno Unified (101)
- Long Beach Unified (82)
- Oakland Unified (82)
- San Bernardino City Unified (76)
- Sacramento City Unified (73)
- San Juan Unified (68)
- Elk Grove Unified (67)
- Garden Grove Unified (66)
- Capistrano Unified (59)
- West Contra Costa Unified (54)
- Stockton Unified (54)
- Corona-norco Unified (53)
- Mt. Diablo Unified (52)
- Santa Ana Unified (52)
- Clovis Unified (50)
- Lodi Unified (49)
- Riverside Unified (49)
- Bakersfield City (45)
- Irvine Unified (45)
- Fontana Unified (44)
- Fremont Unified (44)
Data from NCES Common Core of Data, California Dept. of Education, and U.S. Census ACS for the 2023–24 school year. Rankings computed by MySchoolScout. See all data sources.
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