Enrollment
2,874
California · 2024-25 NCES data
High school (grades 9-12) · Castro Valley, CA
Castro Valley High
Federal NCES profile for Castro Valley High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 42/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 060780000742
👥 S:T ratio 3
📚 AP courses 95
🌟 Gifted program 30
🎓 Counselors 23
📋 Attendance 61
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Castro Valley High earns 42/100 on the Resource Investment Index, with class sizes larger than 73% of California schools. It is also one of the largest schools in California.
- #3 of 3
- high schools in Castro Valley · Resource Index
- 42
- Resource Index · Typical
- 24.2:1
- large classes for California
- 23.2%
- free-lunch eligible
Castro Valley High has class sizes larger than 73% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Castro Valley High ranks #3 of 3 high schools in Castro Valley, CA.
School address
District: Castro Valley Unified · California
NCES ID 060780000742 Verify on NCES CCD record →
Teachers (FTE)
119.0
Federal CCD staff survey
Students per teacher
24.2:1
vs 21.5:1 California avg
+13% vs state
Free-lunch eligible
23.2%
vs 55.5% California avg
-58% vs state
Student-teacher ratio in context
How Castro Valley High compares with California and U.S. medians
What stands out at Castro Valley High
Castro Valley High is a large high school in Castro Valley, California, enrolling 2,874 students.
Class loads run somewhat heavier than typical: 24.2:1 puts it in the larger third of California schools by student-teacher ratio.
Comparatively few students face economic hardship here, 23.2% free-meal eligibility runs 58% below the California average.
By headcount it is one of the larger campuses in California, bigger than 99% of state schools at 2,874 students.
Its Resource Investment Index sits near the middle of the pack among 9,998 scored California schools.
Among 174 similarly sized, similarly resourced-need California schools statewide, it ranks #124, in the lower tier once campus size and economic need are matched.
Its student body is led by Asian (36%) and Hispanic or Latino (26%), more mixed than most schools in the state (diversity index 74/100).
On the academic-pipeline side it reports 19 Advanced Placement courses.
Counselor availability sits well past the ASCA benchmark, roughly 386 students sharing each counselor, though short of the most stretched campuses.
15.7% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
The surrounding Castro Valley Unified spends $13,179 per pupil, 20% below the California average, a leaner-resourced district than most.
Among Castro Valley's high schools, it stands alongside Redwood Continuation High (92 students): Castro Valley High is larger than that campus by headcount and runs heavier classes (24.2:1 vs 13.1:1).
Castro Valley Unified also operates Canyon Middle (1,418 students) and Creekside Middle (754 students) alongside Castro Valley High.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Castro Valley High compares
Castro Valley High on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 24.2:1 | ▲ 13% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 23.2% | ▼ 58% | 55.5% | 51.7% |
| Enrollment | 2,874 | top 1% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
24.2:1
Leaner classes than 6% of US schools, heavier class loads than most.
2,874
Bigger than 99% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
23.2%
free-lunch eligible
- 58% 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
24.2:1
students per teacher
- 13% above state mean
Top 73% in California - lower ratio than 27% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
15.7%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$13,179
per pupil, district-wide
- below California avg of $16,509
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors7.4 FTE
Per 386 students, the combined health-and-guidance staffing load for this school.
Discipline context
2
in-school suspensions + 73 out-of-school
Suspension rate: 0.1 per 100 students. Combined in-school and out-of-school rate: 2.6 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
Asian 36.1%
Hispanic or Latino 25.5%
White 20.8%
Two or More 12.2%
African American 5.0%
Native Hawaiian / Pacific Islander 0.2%
American Indian / Alaska Native 0.1%
Largest group: Asian at 36.1% of enrollment.
Student-body diversity index 74.4/100
Simpson diversity index - at 74.4, Castro Valley High is more mixed than the California school average of 46.0.
Programs
AP courses offered 19
Funding & spending
District-wide per-pupil expenditure for Castro Valley Unified, which includes Castro Valley High.
$13,179
Per student
-20%
vs California
Avg $16,509
-21%
vs U.S.
Avg $16,593
Revenue mix
Local 26.6%
State 62.3%
Federal 11.1%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Castro Valley High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Canyon Middle | Smaller | Similar economic need | Similar S:T ratio |
| Creekside Middle | Smaller | Similar economic need | Lower S:T ratio |
| Independent Elementary | Smaller | Similar economic need | Similar S:T ratio |
| Proctor Elementary | Smaller | Similar economic need | Similar S:T ratio |
| Vannoy Elementary | Smaller | Similar economic need | Higher S:T ratio |
Comparisons are relative to Castro Valley High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,418
- Students per teacher
- 23.2:1
- Resource Index
- 23/100
- Enrollment
- 754
- Students per teacher
- 22.2:1
- Resource Index
- 31/100
- Enrollment
- 662
- Students per teacher
- 24.5:1
- Resource Index
- 28/100
- Enrollment
- 613
- Students per teacher
- 25.5:1
- Resource Index
- 23/100
- Enrollment
- 536
- Students per teacher
- 29.8:1
- Resource Index
- 32/100
Similar high schools in Castro Valley
2 comparable high schools (grades 9-12) serving the same city.
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of California, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~2,874 students)
Similar student-teacher ratio (~24.2:1)
Next steps
Verify locally before acting on Castro Valley High's federal record.
- Compare Castro Valley High against another school. Compare schools
- Castro Valley Unified's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Castro Valley High
How many students attend Castro Valley High?
Castro Valley High has 2,874 students enrolled. It is a high school in Castro Valley, CA.
What is the student-teacher ratio at Castro Valley High?
The student-teacher ratio at Castro Valley High is 24.2:1, which is 13% higher than the California average of 21.5:1 and 54% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Castro Valley High?
23.2% of students at Castro Valley High are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Castro Valley High?
The largest demographic group at Castro Valley High is Asian at 36.1% of enrollment, in Castro Valley, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 74.4/100.
What is the Resource Investment Index for Castro Valley High?
Castro Valley High has a Resource Investment Index of 42/100 (typical reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Castro Valley High rank among high schools in Castro Valley?
By Resource Investment Index, Castro Valley High ranks #3 of 3 high schools in Castro Valley, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Castro Valley on the city page.
Is Castro Valley High a good school?
Castro Valley High earns 42/100 on the Resource Investment Index, with class sizes larger than 73% of California schools. It is also one of the largest schools in California. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Castro Valley Unified?
Besides Castro Valley High, Castro Valley Unified also operates Canyon Middle (1,418 students), Creekside Middle (754 students), and Independent Elementary (662 students). See the Castro Valley Unified district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.