PublicGrades K-5
Castro Valley Elementary School
20185 San Miguel Avenue, Castro Valley, CA 94546-0146(510) 537-1919
Total Students502
Student/Teacher23.9:1
Math Prof.52.86%
Reading Prof.61.95%
School Information
Charter SchoolNo
Magnet SchoolNo
Virtual SchoolNo
CountyAlameda
School DistrictCastro Valley Unified School District
Principal / AdminElizabeth Contreras(510) 537-1919
Founded1980
Free/Reduced Lunch54.98% Eligible
Acceptance Rate100%
Student Demographics
White14.9%
Hispanic32.5%
Black6%
Asian31.9%
Pacific Islander0.6%
Two Or More14.1%
Gender Distribution
47.6%
52.4%
Male Female
Students per Grade
Grade 169
Grade 276
Grade 375
Grade 481
Grade 573
School Calendar 2026-2027
July 2026
Academic Schedule • 2026-2027
Holiday Event
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Summer Break Ends
31
Castro Valley Elementary 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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