Total Students1,499
Student/Teacher24.63:1
Math Prof.31.15%
Reading Prof.58.98%
Graduation Rate91.7%
School Information
Charter SchoolNo
Magnet SchoolNo
Virtual SchoolNo
CountyAlameda
School DistrictSan Lorenzo Unified School District
Principal / AdminMegan Miller(510) 317-4000
Founded1980
Free/Reduced Lunch64.58% Eligible
Acceptance Rate100%
Student Demographics
White7.3%
Hispanic49.8%
Black5.8%
Asian30.9%
Native American0.5%
Pacific Islander1.7%
Two Or More3.7%
Gender Distribution
54.6%
45.2%
Male Female
Students per Grade
Grade 9384
Grade 10371
Grade 11371
Grade 12373
School Calendar 2026-2027
July 2026
Academic Schedule • 2026-2027
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Arroyo 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
Independence Day ObservedJul 3
First Day of SchoolAug 13
Labor Day HolidaySep 7
TK-5 Parent Conferences - Minimum DaySep 22
TK-5 Parent Conferences - Minimum DaySep 24
TK-5 Parent Conferences - Elementary HolidaySep 25
End of First Quarter (Middle School)Oct 9
End of First Trimester (Elementary)Nov 6
Veterans DayNov 11
Fall BreakNov 23
End of First Semester / Second QuarterDec 18
Winter RecessDec 21
New Year Holiday (Winter Break)Jan 1
Secondary Workday - No School for Secondary StudentsJan 8
M.L. King Jr. DayJan 18
Lincoln's DayFeb 12
Presidents' DayFeb 15
End of Second Trimester (Elementary)Feb 26
End of Third Quarter (Middle School)Mar 12
Spring BreakMar 29
Cesar Chavez Day - District HolidayMar 31
Spring Break ContinuedApr 1
Spring Break ConcludesApr 5
Reserved No School DayMay 28
Memorial DayMay 31
Last Day of SchoolJun 3
End of Semester / Quarter / TrimesterJun 3
JuneteenthJun 18
Key Dates & Holidays
2026-2027Community Reviews
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