Schools in Castro Valley Unified · Alameda County

About schools in Alameda County

Alameda County's 19 districts span everything from Oakland's dense urban school system to Fremont's high-achieving suburban campuses, creating a genuinely wide spectrum of public school options across 324 ranked schools. That range matters: nearly 139 schools score in the top quartile statewide, yet performance varies considerably by city and district. Fremont stands out as a consistent academic stronghold — William Hopkins Junior High and Mission San Jose High both rank at the 100th percentile statewide, reflecting a community where rigorous English and math expectations run deep. Families relocating to the county will find the district you land in shapes the experience far more than the county label itself.