For the 2026 school year, there are 4 public high schools serving 3,029 students in Castro Valley, CA. The top-ranked public high schools in Castro Valley, CA are Castro Valley High School, Castro Valley Virtual Academy and Redwood Continuation High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Castro Valley, CA public high schools have an average math proficiency score of 49% (versus the California public high school average of 28%), and reading proficiency score of 72% (versus the 51% statewide average). High schools in Castro Valley have an average ranking of 9/10, which is in the top 20% of California public high schools.
Castro Valley, CA public high school have a Graduation Rate of 95%, which is more than the California average of 86%.
The school with highest graduation rate is Castro Valley High School, with 96% graduation rate. Read more about public school graduation rate statistics in California or national school graduation rate statistics.
Minority enrollment is 79% of the student body (majority Asian), which is equal to the California public high school average of 79% (majority Hispanic).
Best Public High Schools in Castro Valley, CA (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Castro Valley High School
(Math: 52% | Reading: 78%)
Rank:
Rank:
9/
Top 20%10
19400 Santa Maria Ave.
Castro Valley, CA 94546
(510) 537-5910
Castro Valley, CA 94546
(510) 537-5910
Gr: 9-12 | 2,874 students Student-teacher ratio: 24:1 Minority enrollment: 79%
Rank: #22.
Castro Valley Virtual Academy
(Math: 21-39% | Reading: 60-64%)
Rank:
Rank:
7/
Top 50%10
18400 Clifton Way
Castro Valley, CA 94546
(510) 537-3193
Castro Valley, CA 94546
(510) 537-3193
Gr: K-12 | 45 students Student-teacher ratio: 11:1 Minority enrollment: 75%
Rank: #33.
Redwood Continuation High School
Alternative School
(Math: ≤10% | Reading: 20-29%)
Rank:
Rank:
1/
Bottom 50%10
18400 Clifton Way
Castro Valley, CA 94546
(510) 537-3193
Castro Valley, CA 94546
(510) 537-3193
Gr: 9-12 | 92 students Student-teacher ratio: 13:1 Minority enrollment: 83%
Rank: n/an/a
Roy A. Johnson High School
Special Education School
18400 Clifton Way
Castro Valley, CA 94546
(510) 537-3000
Castro Valley, CA 94546
(510) 537-3000
Gr: 9-12 | 18 students Student-teacher ratio: 9:1 Minority enrollment: 94%
Frequently Asked Questions
What are the top-ranked public high schools in Castro Valley, CA?
The top-ranked public high schools in Castro Valley, CA include Castro Valley High School, Castro Valley Virtual Academy and Redwood Continuation High School. Castro Valley has one of the highest concentrations of top-ranked public schools in California.
How many public high schools are located in Castro Valley?
4 public high schools are located in Castro Valley.
What is the racial composition of students in Castro Valley?
Castro Valley public high schools minority enrollment is 79% of the student body (majority Asian), which is equal to the California public high schools average of 79% (majority Hispanic).
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