Roy A. Johnson High
Castro Valley, CA · Castro Valley Unified
Special education school · Grades 12 · Suburb, large
Not enough test data for a ranking (fewer than 30 students tested)
18400 Clifton Way, Castro Valley, CA 94546
(510) 537-3000NCES ID 060780000750Directory 2023–24
Not enough test data to rank this school.
Racial and ethnic breakdown of 20 students (2023–24, NCES) — history since 1987, with comparable seven-category changes from 2010
| Group | Trend | 2010 | 2023 | Change |
|---|---|---|---|---|
| Two or more races | 0.0% | 30.0% | ▲ 30.0 pts | |
| White | 43.8% | 25.0% | ▼ 18.8 pts | |
| Hispanic | 18.8% | 20.0% | ▲ 1.2 pts | |
| Asian | 25.0% | 20.0% | ▼ 5.0 pts | |
| Black | 12.5% | 5.0% | ▼ 7.5 pts |
NCES history for this school begins in 1987. Race categories changed by 2010: earlier data combines Asian and Pacific Islander students and does not consistently identify multiracial students. The chart retains that history, while the change table uses 2010 onward.
Typical home value $1.04M in zip 94546 as of 2026-05 · trend since 2000
Data Provided by Zillow Group
Closest same-level schools, with 2024–25 state rank · ▲▼ = points better or worse than Roy A. Johnson High
- –Castro Valley Virtual AcademyCastro Valley Unified · 0 mi awayCompare
- #1367Redwood Continuation HighCastro Valley Unified · 0.1 mi away1,367th of 1,528
ELA 9% · Math 6%Compare - #259Castro Valley HighCastro Valley Unified · 0.9 mi away259th of 1,528
ELA 68% · Math 49%Compare - –Alameda County Juvenile Hall/CourtAlameda County Office of Education · 1.1 mi awayCompare
- #981East Bay Arts HighSan Lorenzo Unified · 2.4 mi away981st of 1,528
ELA 30%Compare - #1196San Lorenzo HighSan Lorenzo Unified · 2.5 mi away1,196th of 1,528
ELA 30% · Math 10%Compare - #1038San Leandro HighSan Leandro Unified · 2.8 mi away1,038th of 1,528
ELA 39% · Math 16%Compare - #1482Brenkwitz HighHayward Unified · 2.9 mi away1,482nd of 1,528
ELA 4% · Math 2%Compare
What school district is Roy A. Johnson High in?
Roy A. Johnson High is part of the Castro Valley Unified district in Castro Valley, California.
Is Roy A. Johnson High a good school?
Roy A. Johnson High does not have enough recent test data for a SchoolRow ranking.
What is the racial makeup of Roy A. Johnson High?
Two or more races 30%, White 25%, Asian 20%, Hispanic 20% (20 students, 2023–24).
How much do homes near Roy A. Johnson High cost?
The typical home value in zip code 94546 is $1.04M as of 2026-05 (Zillow ZHVI).
Sources: state education department data (CAASPP 2024–25, low-income, chronic absenteeism), National Center for Education Statistics via the Urban Institute (enrollment, demographics, staffing), Zillow Group (home values). Rankings are computed by SchoolRow from state English and Math results within grade level; they measure test performance, not everything that makes a school good.