PublicGrades 9-12
Castro Valley High School
19400 Santa Maria Avenue, Castro Valley, CA 94546-3400(510) 537-5910
Total Students2,874
Student/Teacher23.59:1
Math Prof.49.37%
Reading Prof.68.08%
School Information
Charter SchoolNo
Magnet SchoolNo
Virtual SchoolNo
CountyAlameda
School DistrictCastro Valley Unified School District
Principal / AdminChristopher Fortenberry(510) 537-5910
Founded1980
Free/Reduced Lunch40.05% Eligible
Acceptance Rate100%
Student Demographics
White20.7%
Hispanic25.5%
Black5%
Asian36%
Native American0.1%
Pacific Islander0.2%
Two Or More12.2%
Gender Distribution
52.6%
47.1%
Male Female
Students per Grade
Grade 9748
Grade 10740
Grade 11709
Grade 12677
School Calendar 2026-2027
July 2026
Academic Schedule • 2026-2027
Holiday Event
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Summer Break Ends
31
Castro Valley High School
Academic Calendar (2026-2027)
July 2026
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August 2026
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September 2026
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November 2026
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December 2026
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January 2027
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February 2027
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March 2027
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April 2027
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May 2027
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June 2027
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Key Dates & Holidays
Independence Day Observed HolidayJul 3
Summer Break EndsJul 30
First Day of SchoolAug 5
Labor Day HolidaySep 7
Preschool-Grade 5 Early DismissalSep 22
Preschool-Grade 5 No School DaySep 25
Middle School Minimum DaysOct 6
Fall BreakOct 9
Winter Break BeginsDec 21
Winter Break EndsJan 1
Grades 6-12 Work Day (No School Pre-5)Jan 4
Martin Luther King Jr. Birthday HolidayJan 18
President's Day BreakFeb 15
Trimester 2 EndsFeb 25
Teacher Report Card Prep Minimum DaysMar 3
Grades 6-8 Report Card Prep Minimum DaysMar 18
Preschool-Grade 5 Early DismissalMar 24
Spring Break BeginsMar 29
Spring Break ContinuesApr 1
Spring Non-School DayApr 26
Finals / End of Year Minimum DaysMay 26
Last Day of SchoolMay 28
Trimester 3 EndsMay 28
Memorial Day HolidayMay 31
Juneteenth HolidayJun 18
Key Dates & Holidays
2026-2027A Hub for Growth and Exploration
This vibrant public institution in Castro Valley, CA, provides a dynamic learning environment for grades 9-12. Families often seek schools offering competitive sports like basketball and soccer, alongside engaging clubs such as STEM and robotics. Students may also find avenues to explore their passions in the arts and track and field.
Connect with Our Community
We are committed to fostering a supportive educational experience within the Castro Valley Unified School District. Parents can review the academic calendar directly on this page for important dates and events. Our goal is to empower every student for future success.
Frequently Asked Questions
What types of extracurricular activities are available?
While specific programs vary each year, students often have access to clubs like robotics and athletics such as soccer. We recommend contacting the administration directly for the current list of activities.
How can I get involved as a parent?
Parent involvement is highly valued. Opportunities range from volunteering in classrooms to participating in school events and parent-teacher organizations. Specific ways to contribute can be found through the school's main office.
What is the average class size?
Class sizes can fluctuate based on grade level and subject matter. For precise figures, it is best to reach out to the admissions office at the school.
Does the school offer college preparatory programs?
Yes, this institution is dedicated to preparing students for higher education. A robust curriculum combined with guidance counseling aims to support students in their college aspirations.
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