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SCHOOL COMMUNITY·WILLIAM S. HART UNION HIGH·NCES 064251014393

Castaic High

31575 Valley Creek Rd., Castaic, CA 91384 · (661) 888-6288 · Los Angeles County
GRADES 09–12HIGH41-RURALREGULAR SCHOOL1,159 STUDENTS
Enrollment
1,159
High
DISTRICT 1,434 · STATE 838
Student : Teacher
23.6:1
49 FTE teachers
DISTRICT 22.7:1 · STATE 18.2:1
Free / Reduced Lunch
22%
260 students
DISTRICT 31% · STATE 65%
Community
2
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Grade 8
2
Grade 9
299
Grade 10
287
Grade 11
277
Grade 12
294
Student demographics
White
40135%
DISTRICT 32% · STATE 20%
Hispanic
55748%
DISTRICT 45% · STATE 56%
Black
565%
DISTRICT 4% · STATE 5%
Asian
938%
DISTRICT 14% · STATE 12%
Two+
474%
DISTRICT 4% · STATE 6%
Native American
10%
DISTRICT 0% · STATE 0%
Pacific Islander
40%
DISTRICT 0% · STATE 0%
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
63355%
Female
52645%

Discussions

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Test scores

CAASPP 2023-24 . % met or exceeded standard
English Language Arts
70.5%
CA avg 47.1%
Math
29.6%
CA avg 35.6%
Source: CAASPP. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
UNDERPERFORMING
Bottom 10% of CA schools after controlling for student poverty
Actual proficiency
50.4%
composite math + reading, all grades
Predicted
66.1%
based on CA schools with similar FRL share
Beats by
-15.8pp
below demographic expectation
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

About Castaic High

Castaic High, a mid-sized senior high in Castaic, California, one of the schools within William S. Hart Union High, works with 1,159 students, covering grades 9 through 12. That puts it 38% bigger than the typical public school in California, which averages around 838 students.

Across the 16 schools in William S. Hart Union High (20,465 students total), Castaic High accounts for its share of the district's footprint.

On demographics, Castaic High reports that the largest single group is Hispanic at 48%, but no single group is in the majority. The remainder looks like 35% White, 8% Asian, 5% Black, 4% multiracial. That mix tracks the wider county fairly closely.

Looking at the economic backdrop, On paper, Castaic High has 49 full-time-equivalent teachers, translating to a class-load average of around 23.6:1. The state averages around 18.2:1, so this campus is higher than the state norm typical. An estimated 22% of students are eligible for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal. By comparison, Los Angeles County runs at roughly 70%, so the school's eligibility rate is below the surrounding baseline.

On a residual basis (actual vs predicted given the student mix), Castaic High is in the bottom 10% of California public schools. The BeatsExpectations model predicts schools with this FRL share to land around 66.1%; Castaic High posts 50.4%, -15.8 points below that line.

Across the wider county, ACS estimates for Los Angeles County put median household income runs about $90,112, 36% of adults hold a bachelor's degree or higher, and census figures put the poverty rate at about 10%. Across Los Angeles County's 2244 public schools (combined enrollment of about 1,265,907 students), Castaic High is one campus in the mix.

The closest other public school is Castaic Middle, roughly 1.8 miles away. Within five miles, there are 5 other public schools. Ranking that nearby cluster on reported proficiency puts Castaic High at 5th of 8; the average score across the group is 58.6%.

The campus sits in a small-town setting.

In the discussion threads here, the feed for Castaic High typically covers sports schedules, lunch menu changes, and school spirit week. Posting is open to anyone connected to the school.

Los Angeles County at a glance

View full county profile
Population
9,808,667
Census ACS
Median income
$90,112
Household, ACS
Bachelor's+
36%
Adults 25+
Poverty rate
10%
Below federal line
Schools in county
2,244
1,265,907 students

Quick facts

School name
Castaic High
District
William S. Hart Union High
Address
31575 Valley Creek Rd., Castaic, CA 91384
Phone
(661) 888-6288
County
Los Angeles County
Level
High
Grade range
09–12
Total enrollment
1,159
Teachers (FTE)
49
Student–teacher ratio
23.6:1
Free/Reduced lunch
260 (22%)
Locale
41-Rural: Fringe
NCES ID
064251014393
Charter school
No
Virtual school
No

Related schools

Other schools in William S. Hart Union High
Other schools in Castaic
Nearby schools

Frequently asked questions

About Castaic High
What is the total enrollment at Castaic High?
Castaic High enrolls approximately 1,159 students in grades 09-12.
What age range does Castaic High serve?
Castaic High serves students from grade 09 through grade 12.
How many students per teacher at Castaic High?
Approximately 23.6:1 students per teacher at Castaic High.
How diverse is Castaic High?
Castaic High reports a student body of 35% White, 48% Hispanic, 5% Black, 8% Asian, 4% Two or more.
What district is Castaic High in?
Castaic High is part of William S. Hart Union High.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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