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%
Graduation Rate98.1%
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
2026-2027Community Reviews
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