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For the 2025-26 school year, there are 4 public high schools serving 3,027 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 78% of the student body (majority Asian), which is less than the California public high school average of 79% (majority Hispanic).