The brief
A Castro Valley Unified high school serving grades 9th – 12th.
Roy A. Johnson High is listed in Castro Valley Unified, and a district label does not verify attendance for an address: confirm the zoned campus with the district before you commit to a street.
About this school's data2 sources, 2019–2024
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, an estimate, or describes a surrounding area rather than the school, that limitation is named here.
- Based on limited data: 0% component coverage.
- We don't have enough verified data to rate this school fairly. This can happen when a school is very new, very small, or has limited test score reporting to the state. Our rating model requires at least 2 of 4 data components (academics, student progress, college readiness, and resources) to generate a meaningful score. Schools below this threshold receive a Limited Profile to avoid misleading ratings. Learn more about our methodology
- School directory (enrollment, grades, staff, contact)
- NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
- Source period: SY 2023–24. A newer release may be available.
- Neighborhood (income, housing, education)
- U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
- Older source: ACS 2019–2023 5-year estimates. Use as historical context.
- Reported for the ZCTA for ZIP 94546; this does not measure the attendance area.
Evidence periods: Rating not displayed; assessments vintage unavailable; directory SY 2023–24
The neighborhood
Where it sits, and what the area looks like.Open the San Francisco Bay Area school map to see school quality against home prices across the metro.
The area
- Median income
- $125,780
- Median home value
- $976,300
- Median rent
- $2,506/mo
- College educated
- 41.4%
- Homeownership
- 65.8%
- Poverty rate
- 7.4%
U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 94546; this is area context, not an attendance boundary.
Getting around
- Walk Score
- 43
- Car-Dependent
- Transit Score
- 17
- Minimal Transit
- Bike Score
- 18
- Somewhat Bikeable
- County reported crime
- 3,626/100K
- Reported Part-1 offenses (violent + property + arson) per 100,000 county residents, counting every city police department, sheriff's office and county police department that reported a full year to the FBI Uniform Crime Reporting program. Shown only where those agencies cover at least 80% of the county's residents. Not a school safety rating.
Walk, transit and bike scores by
FBI Uniform Crime Reporting · 2025 · county context, not school-level safety or attendance eligibility. Source details
Compare nearby
Grade-compatible schools using the same rating model.- 7.1Compare →
- 6.6Compare →
- 6.0Compare →
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- 5.3Compare →
- 5.3Compare →
- 3.5Compare →
- Roy A. Johnson Highnot rated
Distance is proximity only; it is not attendance eligibility.
Enrollment path unverified: Potential public school; its attendance or application path has not been classified.
The record
What is on file, and where each number came from.Questions families ask
What grades does Roy A. Johnson High serve?
Roy A. Johnson High serves students in grades 9th through 12th.
How many students attend Roy A. Johnson High?
Roy A. Johnson High has an enrollment of approximately 20 students.
What is the student-teacher ratio at Roy A. Johnson High?
The student-teacher ratio at Roy A. Johnson High is 20:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
Is Roy A. Johnson High a charter school?
No, Roy A. Johnson High is not a charter school. It is a traditional public school operated by the local school district.
Is Roy A. Johnson High a Title I school?
No, Roy A. Johnson High is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Roy A. Johnson High?
45.0% of students at Roy A. Johnson High qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
School facts
- Grades
- 9th – 12th
- Enrollment
- 20
- Student-teacher ratio
- 20:1
- Teachers (FTE)
- 1
- Free or reduced lunch
- 45.0%
- Type
- Special_ed
- Title I
- No
- Setting
- Large Suburb
- County
- Alameda County
- Phone
- (510) 537-3000
- Schools in district
- 16
- District spending per student
- $14,627
- NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- 4.6%
- Census SAIPE · 2024
- Area population (ZIP 94546)
- 45,848
- Area average commute
- 33.7 min
- Area median age
- 42.1
NCES Common Core of Data (CCD) (SY 2023–24).
Sources and official links
Keep exploring
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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.