PublicCharterGrades 7-12
Altus Schools Mirus
14135 Main Street, Suite 201, Hesperia, CA 92345-4675(760) 947-7100
Total Students292
Student/Teacher29.2:1
Math Prof.15.22%
Reading Prof.38.71%
Graduation Rate59.8%
School Information
Charter SchoolYes
Magnet SchoolNo
Virtual SchoolNo
CountySan Bernardino
School DistrictHesperia Unified School District
Principal / AdminMary Bixby(760) 947-7100
Founded2007
Free/Reduced Lunch73.63% Eligible
Acceptance Rate100%
Student Demographics
White20.9%
Hispanic69.2%
Black3.4%
Asian1%
Native American1.7%
Pacific Islander0.3%
Two Or More3.4%
Gender Distribution
46.9%
53.1%
Male Female
Students per Grade
Grade 77
Grade 820
Grade 9127
Grade 1078
Grade 1136
Grade 1224
School Calendar 2026-2027
August 2026
Academic Schedule • 2026-2027
Holiday Event
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Teacher Preparation Professional Development Days
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Teacher Preparation Professional Development Days
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Teacher Preparation Professional Development Days
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First Day of School
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Altus Schools Mirus
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
Teacher Preparation Professional Development DaysAug 3
First Day of SchoolAug 6
Labor Day HolidaySep 7
Minimum Days for Grades TK-6Sep 22
End of First QuarterOct 9
Minimum Day for Grades 7-12Oct 9
Fall Break (October Recess)Oct 12
Veterans Day HolidayNov 11
Thanksgiving BreakNov 23
Winter Break HolidayJan 1
Martin Luther King Jr. DayJan 18
Lincoln's Birthday HolidayFeb 8
President's Day HolidayFeb 15
End of 3rd QuarterMar 19
Minimum Day for Grades 7-12Mar 19
Spring BreakMar 22
CAASPP Testing Window StartApr 5
CAASPP Testing Window EndApr 30
Last Day of School / End of 2nd SemesterMay 26
Minimum Day All LevelsMay 26
Possible Snow DayMay 27
Memorial Day HolidayMay 31
Key Dates & Holidays
2026-2027Community Reviews
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