PublicGrades 9-12
William S. Hart High School
24825 North Newhall Avenue, Newhall, CA 91321-1576(661) 259-7575
Total Students1,941
Student/Teacher23.88:1
Math Prof.34.97%
Reading Prof.68.15%
Graduation Rate97.9%
School Information
Charter SchoolNo
Magnet SchoolNo
Virtual SchoolNo
CountyLos Angeles
School DistrictWilliam S. Hart Union High School District
Principal / AdminJason D'Autremont(661) 259-7575
Founded1980
Free/Reduced Lunch39.1% Eligible
Acceptance Rate100%
Student Demographics
White28.8%
Hispanic62.1%
Black1.4%
Asian4.5%
Native American0.1%
Pacific Islander0.3%
Two Or More2.9%
Gender Distribution
50.8%
49.2%
Male Female
Students per Grade
Grade 9483
Grade 10444
Grade 11454
Grade 12560
School Calendar 2026-2027
July 2026
Academic Schedule • 2026-2027
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William S. Hart High 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 ObservedJul 3
Start Date for Returning StaffAug 6
First Day of School for All StudentsAug 11
Labor Day HolidaySep 7
Fall BreakOct 5
End of First QuarterOct 16
Veterans Day ObservanceNov 11
Thanksgiving Break PeriodNov 23
First Semester Finals PeriodDec 14
End of First SemesterDec 17
Winter Break StartDec 21
Winter Break EndJan 8
Start of Second SemesterJan 11
Martin Luther King Jr. DayJan 18
End of Third QuarterMar 19
Spring Break PeriodApr 5
Memorial Day ObservanceMay 31
Second Semester Finals PeriodJun 1
Last Day of School for StudentsJun 3
Juneteenth ObservedJun 18
Key Dates & Holidays
2026-2027Community Reviews
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