- Enrollment
- 2,317
- Students per teacher
- 24.4:1
- Resource Index
- 30/100
High school (grades 9-12) · Castaic, CA
Castaic High
Federal NCES profile for Castaic High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 33/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 064251014393
👥 S:T ratio 16
🌟 Gifted program 30
🎓 Counselors 0
📋 Attendance 87
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Castaic High earns 33/100 on the Resource Investment Index, with class sizes near the California median.
- #3 of 6
- public schools in Castaic · Resource Index
- 33
- Resource Index · Typical
- 21.1:1
- students per teacher
- 20.7%
- free-lunch eligible
Castaic High has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Castaic High ranks #3 of 6 public schools in Castaic, CA.
School address
District: William S. Hart Union High · California
NCES ID 064251014393 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-15 students YoY
Castaic High held near 1,193 students from 2022-23 to 2023-24 (-15 headcount).
Teacher FTE added 55.5 → 57.9 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-15 students YoY 064251014393 · Castaic, CA High · MID · TRAD
1,159 enr · 21.1:1 · 20.7% lunch · RII 33
Nearest enrollment peer: Saugus High (2,317 students)
Castaic High held near 1,193 students from 2022-23 to 2023-24 (-15 headcount). Teacher FTE added 55.5 → 57.9 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
Castaic High in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Saugus High
Saugus High
2,317 students
- Valencia High
Valencia High
2,286 students
- Golden Valley
Golden Valley High
1,980 students
- Canyon High
Canyon High
1,952 students
- William S. Har
William S. Hart High
1,941 students
- This school
Castaic High
1,159 students
What this shows Castaic High reports 1,159 students on the CCD universe file.
How Castaic High compares
Castaic High held steady on CCD headcount: ratios and free-lunch share vs California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 21.1:1 | ▼ 2% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 20.7% | ▼ 63% | 55.5% | 51.7% |
| Enrollment | 1,159 | top 9% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
21.1:1
Leaner classes than 13% of US schools, heavier class loads than most.
1,159
Bigger than 93% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
Economic need
20.7%
free-lunch eligible
- 63% below the California average of 55.5%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
21.1:1
students per teacher
- 2% below state mean
Top 44% in California - lower ratio than 56% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
5.1%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
Funding equity
$15,249
per pupil, district-wide
- below California avg of $18,665
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors2.0 FTE
Per 580 students, the combined health-and-guidance staffing load for this school.
Discipline context
6
in-school suspensions + 41 out-of-school
Suspension rate: 0.5 per 100 students. Combined in-school and out-of-school rate: 4.1 per 100 students. Reported via the Civil Rights Data Collection. Includes 1 expulsion.
Student demographics
Hispanic or Latino 48.1%
White 34.6%
Asian 8.0%
African American 4.8%
Two or More 4.1%
Native Hawaiian / Pacific Islander 0.3%
American Indian / Alaska Native 0.1%
Largest group: Hispanic or Latino at 48.1% of enrollment.
Student-body diversity index 63.9/100
Simpson diversity index - at 63.9, Castaic High is more mixed than the California school average of 46.0.
Programs
AP courses offered 7
District finance for William S. Hart Union High reports $15,249 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Castaic High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Saugus High | Larger | Similar economic need | Higher S:T ratio |
| Valencia High | Larger | Similar economic need | Higher S:T ratio |
| Golden Valley High | Larger | Higher economic need | Similar S:T ratio |
| Canyon High | Larger | Higher economic need | Higher S:T ratio |
| William S. Hart High | Larger | Higher economic need | Similar S:T ratio |
Comparisons are relative to Castaic High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,286
- Students per teacher
- 22.9:1
- Resource Index
- 28/100
- Enrollment
- 1,980
- Students per teacher
- 22:1
- Resource Index
- 31/100
- Enrollment
- 1,952
- Students per teacher
- 23.2:1
- Resource Index
- 28/100
- Enrollment
- 1,941
- Students per teacher
- 21.6:1
- Resource Index
- 32/100
Nationwide high schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~1,159 students)
Frequently asked questions about Castaic High
How many students attend Castaic High?
Castaic High has 1,159 students enrolled. It is a high school in Castaic, CA. CCD year-over-year: 1,208 (2022-23) → 1,193 (2023-24), nearly flat (-15).
What is the student-teacher ratio at Castaic High?
The student-teacher ratio at Castaic High is 21.1:1, which is 2% lower than the California average of 21.5:1 and 34% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Castaic High?
20.7% of students at Castaic High are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Castaic High?
The largest demographic group at Castaic High is Hispanic or Latino at 48.1% of enrollment, in Castaic, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 63.9/100.
What is the Resource Investment Index for Castaic High?
Castaic High has a Resource Investment Index of 33/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Castaic High rank among public schools in Castaic?
By Resource Investment Index, Castaic High ranks #3 of 6 public schools in Castaic, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Castaic on the city page.
What other schools are in William S. Hart Union High?
Besides Castaic High, William S. Hart Union High also operates Saugus High (2,317 students), Valencia High (2,286 students), and Golden Valley High (1,980 students). See the William S. Hart Union High district page for the complete list.