High · Special education · Grades 9 to 12
Roy A. Johnson High, Castro Valley, CA
Enrollment and teachers
- Students
- 18
- Teachers (FTE)
- 2.0
- Students per teacher
- 9.0
- Grades
- 9 to 12
This school's ratio is 14.1 lower than the district figure of 23.1. The California average across schools is 21.9. Ratios count all teachers, including specialists, so they are lower than typical class sizes.
School details
- Address
- 18400 Clifton Way, Castro Valley, CA 94546
- Phone
- (510)537-3000
- District
- Castro Valley Unified
- County
- Alameda County
- Level
- High
- Type
- Special education
- Status
- Open
- Charter
- No
- Virtual
- No
- Locale
- Suburb: Large
- NCES school ID
- 060780000750
School meals
- Free lunch
- 4
- Reduced-price lunch
- 5
- Free or reduced-price lunch
- 950.0% of enrollment.
- Direct certification
- 3Students certified through programs such as SNAP, without an application.
Schools in the Community Eligibility Provision (CEP) serve free meals to all students, so their free lunch counts often reflect direct certification or total enrollment. Free and reduced lunch shares are not comparable between CEP and non-CEP schools.
Related schools
Other high schools in Castro Valley Unified
- Castro Valley High 2,874 students
- Redwood Continuation High 92 students
We publish official enrollment and staffing data, not ratings or test scores.
Source: NCES Common Core of Data 2024-25 and F-33 finance 2020, via the Urban Institute Education Data Portal. Last reviewed October 2026. Blank values are not available, not applicable or suppressed in the source. See the methodology.