Total Students843
Student/Teacher23.27:1
Math Prof.47.52%
Reading Prof.58.11%
School Information
Charter SchoolNo
Magnet SchoolNo
Virtual SchoolNo
CountyContra Costa
School DistrictMartinez Unified School District
Principal / AdminKerry Cusack(925) 335-5820
Founded1980
Free/Reduced Lunch32.74% Eligible
Acceptance Rate100%
Student Demographics
White43.5%
Hispanic31.2%
Black2.3%
Asian7.7%
Native American0.2%
Pacific Islander0.7%
Two Or More14.4%
Gender Distribution
49.1%
50.9%
Male Female
Students per Grade
Grade 6295
Grade 7297
Grade 8251
School Calendar 2026-2027
July 2026
Academic Schedule • 2026-2027
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Martinez Junior 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 Observance HolidayJul 3
First Day of SchoolAug 12
Labor Day HolidaySep 7
Thanksgiving Break RecessNov 23
Thanksgiving HolidaysNov 27
Student Minimum DayDec 18
Christmas Eve Classified HolidayDec 24
Christmas Day HolidayDec 25
New Year's Eve HolidayDec 31
New Year's Day HolidayJan 1
Martin Luther King, Jr. DayJan 18
Lincoln's Birthday ObservanceFeb 12
Presidents' Day HolidayFeb 15
Emergency Makeup DayApr 2
Spring Break RecessApr 5
Spring Break Classified HolidayApr 9
Emergency Makeup DayMay 28
Memorial Day HolidayMay 31
Last Day of SchoolJun 3
Emergency Makeup DayJun 4
Juneteenth Classified HolidayJun 18
Key Dates & Holidays
2026-2027Community Reviews
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