PublicGrades 9-12
Los Altos High School
15325 East Los Robles Avenue, Hacienda Heights, CA 91745-2717(626) 934-5400
Total Students1,592
Student/Teacher22.64:1
Math Prof.31.71%
Reading Prof.63.14%
School Information
Charter SchoolNo
Magnet SchoolNo
Virtual SchoolNo
CountyLos Angeles
School DistrictHacienda la Puente Unified School District
Principal / AdminJeffrey Hess(626) 934-5400
Founded1980
Free/Reduced Lunch70.23% Eligible
Acceptance Rate100%
Student Demographics
White2.5%
Hispanic89.6%
Black0.4%
Asian5.8%
Native American0.1%
Pacific Islander0.1%
Two Or More1.4%
Gender Distribution
52.6%
47.2%
Male Female
Students per Grade
Grade 9447
Grade 10414
Grade 11372
Grade 12359
School Calendar 2026-2027
August 2026
Academic Schedule • 2026-2027
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Professional Development (TK-12 Students Free)
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Professional Development (TK-12 Students Free)
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Los Altos 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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June 2027
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Key Dates & Holidays
Professional Development (TK-12 Students Free)Aug 3
Professional Development (TK-12 Students Free)Aug 4
First Day of School (Semester 1 Starts)Aug 5
Labor Day HolidaySep 7
Student Free Day (TK-8 Only)Sep 23
6-12 End of Grading PeriodOct 23
TK-5 End of Grading PeriodNov 6
Veterans Day HolidayNov 11
Fall Recess (Thanksgiving Break)Nov 23
Student Free Day (9-12 Only) / Semester 1 EndsDec 18
Winter RecessDec 21
Winter Recess (New Year's Day)Jan 1
Student Free Day (TK-12 Students)Jan 4
Semester 2 StartsJan 5
Martin Luther King Jr. Day HolidayJan 18
Lincoln's Birthday HolidayFeb 8
6-12 End of Grading PeriodFeb 12
Presidents Day HolidayFeb 15
TK-5 End of Grading PeriodMar 5
Spring RecessMar 29
6-12 End of Grading PeriodApr 2
Semester Ends (Student Free Staff Work Day) / Last Day of SchoolMay 21
Key Dates & Holidays
2026-2027Discovering Excellence at Los Altos High School
Families often seek vibrant learning environments that foster both academic and personal growth. This institution provides a dynamic setting where students can explore diverse interests. Opportunities may abound for athletic pursuits like basketball and soccer, alongside enriching programs such as STEM initiatives and artistic endeavors.
Your Gateway to Educational Planning
Planning your academic journey is made simple here. This page serves as a central hub for important information. Parents and students are encouraged to review the academic calendar directly on this page for key dates and events.
Frequently Asked Questions
What extracurricular activities are available for students?
While specific offerings can change, students frequently find opportunities to participate in clubs like robotics and athletics such as soccer. For the most current list of activities, please contact the school administration directly.
How can I get involved in the school community?
There are many ways to get involved, from joining student clubs and organizations to participating in athletic teams or volunteer opportunities. Check the school's website or contact the main office for details on current needs and how to contribute.
What academic support services does the school offer?
The campus typically offers a range of academic support, which may include tutoring services, college counseling, and specialized programs designed to help students succeed. Inquire with the guidance department for specific resources available.
Are there opportunities for students interested in the arts?
Yes, many educational institutions like ours aim to provide a well-rounded experience. Students often have chances to engage with visual arts, music programs, or drama clubs, fostering creativity and expression.
Community Reviews
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