PublicGrades K-5
Hidden Valley Elementary School
500 Glacier Drive, Martinez, CA 94553-5499(925) 228-9530
Total Students831
Student/Teacher26.55:1
Math Prof.53.98%
Reading Prof.56.81%
School Information
Charter SchoolNo
Magnet SchoolNo
Virtual SchoolNo
CountyContra Costa
School DistrictMt. Diablo Unified School District
Principal / AdminJennifer Tosi(925) 228-9530
Founded1980
Free/Reduced Lunch44.4% Eligible
Acceptance Rate100%
Student Demographics
White38.7%
Hispanic33.2%
Black2.2%
Asian11.3%
Native American0.2%
Pacific Islander0.1%
Two Or More14.2%
Gender Distribution
50.7%
49.3%
Male Female
Students per Grade
Grade 1106
Grade 2134
Grade 3146
Grade 4133
Grade 5138
School Calendar 2026-2027
July 2026
Academic Schedule • 2026-2027
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Hidden 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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October 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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Key Dates & Holidays
Independence Day Observed HolidayJul 3
First Student DayAug 6
First Quarter BeginsAug 6
Labor Day HolidaySep 7
End of First Quarter HolidayOct 2
Fall Recess BreakOct 5
Indigenous Peoples Day HolidayOct 12
Second Quarter BeginsOct 13
End of First Trimester HolidayOct 30
Caregiver Conferences BreakNov 2
Veterans Day HolidayNov 11
School Recess BreakNov 23
Thanksgiving Day HolidayNov 26
Board HolidayNov 27
Second Trimester BeginsNov 30
End of First Semester HolidayDec 18
End of Second Quarter HolidayDec 18
Winter Recess BreakDec 21
Christmas HolidayDec 25
New Year's Day HolidayJan 1
Third Quarter BeginsJan 4
Martin Luther King Day HolidayJan 18
Presidents Day HolidayFeb 15
End of Trimester 2 HolidayFeb 26
Third Trimester BeginsMar 1
End of Third Quarter HolidayMar 12
Farmworkers Day HolidayMar 31
Spring Recess BreakApr 5
Board HolidayApr 9
Fourth Quarter BeginsApr 13
Memorial Day HolidayMay 31
Last Student DayJun 2
End of Second Semester HolidayJun 2
End of Fourth Quarter HolidayJun 2
End of Third Trimester HolidayJun 2
Juneteenth Observed HolidayJun 18
Key Dates & Holidays
2026-2027Nurturing Young Minds in Martinez
Nestled in Martinez, CA, this institution within the Mt. Diablo Unified School District offers a nurturing environment for grades K-5. Families often look for schools offering sports like basketball and soccer, or enriching programs like STEM and robotics, alongside vibrant arts education.
Engaging Learning and Community Connection
Our school is dedicated to fostering a supportive educational journey. Parents can find important dates and events by checking the academic calendar on this page. We believe in building a strong connection between home and school.
Frequently Asked Questions
What extracurricular activities are available for students?
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.
What is the typical school day schedule?
The daily schedule typically includes a balance of instructional time, recess, and lunch. Specific timings can be found on the school's official website or academic calendar.
How does the school communicate with parents?
Communication is primarily handled through newsletters, parent-teacher conferences, and school-wide announcements. Important updates are also posted on the school's official online portal.
Are there opportunities for parent involvement?
Absolutely! Parent involvement is highly encouraged through volunteering, participation in school events, and joining parent-teacher organizations. Your contribution makes a significant difference.
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