- Enrollment
- 2,874
- Students per teacher
- 24.2:1
- Resource Index
- 29/100
High school (grades 9-12) · Castro Valley, CA
Roy a. Johnson High
Federal NCES profile for Roy a. Johnson High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 37/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 060780000750
👥 S:T ratio 82
🌟 Gifted program 30
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Roy a. Johnson High earns 37/100 on the Resource Investment Index, with class sizes smaller than 99% of California schools. It is also one of the smallest schools in California.
- #2 of 3
- high schools in Castro Valley · Resource Index
- 37
- Resource Index · Typical
- 4.5:1
- small classes for California
- 25.0%
- free-lunch eligible
Roy a. Johnson High has class sizes smaller than 99% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Roy a. Johnson High ranks #2 of 3 high schools in Castro Valley, CA.
School address
District: Castro Valley Unified · California
NCES ID 060780000750 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-4 students YoY
Roy a. Johnson High shrank from 24 students in 2022-23 to 20 in 2023-24 (-16.7%).
Teacher FTE lost 4.0 → 1.8 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Shrinking CCD campus
-4 students YoY 060780000750 · Castro Valley, CA High · SMALL · TRAD
18 enr · 4.5:1 · 25.0% lunch · RII 37
Nearest enrollment peer: Castro Valley High (2,874 students)
Roy a. Johnson High shrank from 24 students in 2022-23 to 20 in 2023-24 (-16.7%). Teacher FTE lost 4.0 → 1.8 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
Roy a. Johnson High in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Castro Valley
Castro Valley High
2,874 students
- Canyon Middle
Canyon Middle
1,418 students
- Creekside Midd 754
Creekside Middle
754 students
- Independent El 662
Independent Elementary
662 students
- Proctor Elemen 613
Proctor Elementary
613 students
- This school 18
Roy a. Johnson High
18 students
What this shows Roy a. Johnson High reports 18 students on the CCD universe file.
How Roy a. Johnson High compares
Roy a. Johnson High is a shrinking campus on CCD: ratios and free-lunch share vs California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 4.5:1 | ▼ 79% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 25.0% | ▼ 55% | 55.5% | 51.7% |
| Enrollment | 18 | top 97% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
4.5:1
Leaner classes than 99% of US schools, among the more generously staffed nationally.
18
Bigger than 2% of US schools by enrollment, a small campus.
Equity indicators methodology
Economic need
25.0%
free-lunch eligible
- 55% 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
4.5:1
students per teacher
- 79% below state mean
Top 1% in California - lower ratio than 99% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
50.0%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$14,601
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
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
Hispanic or Latino 33.3%
Asian 33.3%
Two or More 22.2%
White 5.6%
African American 5.6%
Largest group: Asian at 33.3% of enrollment.
Student-body diversity index 72.3/100
Simpson diversity index - at 72.3, Roy a. Johnson High is more mixed than the California school average of 46.0.
Programs
AP program Not offered
District finance for Castro Valley Unified reports $14,601 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Roy a. Johnson High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Castro Valley High | Larger | Similar economic need | Higher S:T ratio |
| Canyon Middle | Larger | Similar economic need | Higher S:T ratio |
| Creekside Middle | Larger | Similar economic need | Higher S:T ratio |
| Independent Elementary | Larger | Similar economic need | Higher S:T ratio |
| Proctor Elementary | Larger | Lower economic need | Higher S:T ratio |
Comparisons are relative to Roy a. Johnson 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
Similar high schools in Castro Valley
2 comparable high schools (grades 9-12) serving the same city.
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 (~18 students)
Frequently asked questions about Roy a. Johnson High
How many students attend Roy a. Johnson High?
Roy a. Johnson High has 18 students enrolled. It is a high school in Castro Valley, CA. CCD year-over-year: 24 (2022-23) → 20 (2023-24), down 4.
What is the student-teacher ratio at Roy a. Johnson High?
The student-teacher ratio at Roy a. Johnson High is 4.5:1, which is 79% lower than the California average of 21.5:1 and 71% lower 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 Roy a. Johnson High?
25.0% of students at Roy a. Johnson High are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Roy a. Johnson High?
The largest demographic group at Roy a. Johnson High is Asian at 33.3% of enrollment, in Castro Valley, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 72.3/100.
What is the Resource Investment Index for Roy a. Johnson High?
Roy a. Johnson High has a Resource Investment Index of 37/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, gifted-program reporting, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Roy a. Johnson High rank among high schools in Castro Valley?
By Resource Investment Index, Roy a. Johnson High ranks #2 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.
What other schools are in Castro Valley Unified?
Besides Roy a. Johnson High, Castro Valley Unified also operates Castro Valley High (2,874 students), Canyon Middle (1,418 students), and Creekside Middle (754 students). See the Castro Valley Unified district page for the complete list.