PublicCharterGrades 6-12
John Muir Charter School
960 McCourtney Road Suite E, Grass Valley, CA 95949-7422(530) 272-4008
Total Students629
Student/Teacher16.61:1
Math Prof.6.29%
Reading Prof.13.92%
School Information
Charter SchoolYes
Magnet SchoolNo
Virtual SchoolNo
CountyNevada
School DistrictNevada County Office of Education School District
Principal / AdminR.J. Guess(530) 272-4008
Founded1999
Free/Reduced Lunch94.28% Eligible
Acceptance Rate100%
Student Demographics
White8.9%
Hispanic73%
Black8.9%
Asian1%
Native American0.6%
Pacific Islander0.3%
Two Or More6.4%
Gender Distribution
67.9%
31.2%
Male Female
Students per Grade
Grade 62
Grade 71
Grade 83
Grade 92
Grade 10355
Grade 11161
Grade 12105
School Calendar 2026-2027
July 2026
Academic Schedule • 2026-2027
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John Muir Charter 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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Key Dates & Holidays
Independence Day ObservanceJul 4
First Day of Student InstructionAug 5
Fair Day School ClosureAug 12
Minimum Day Student DismissalAug 13
Labor Day HolidaySep 7
Minimum Day for Staff MeetingsSep 16
End of First QuarterOct 2
October RecessOct 12
Veterans Day ObservanceNov 11
Minimum Day Student DismissalNov 25
Thanksgiving BreakNov 26
Minimum Day Semester FinalsDec 15
End of First SemesterDec 18
Winter BreakDec 21
New Year's Day ContinuationJan 1
Start of Second SemesterJan 4
Martin Luther King, Jr. DayJan 18
Presidents' Day Observance (Day 1)Feb 12
Presidents' Day Observance (Day 2)Feb 15
End of Third QuarterMar 12
Minimum Day for Staff MeetingsMar 17
Spring Break CommencementMar 29
Spring Recess ContinuationApr 1
Minimum Day Semester FinalsMay 25
Last Day of Student InstructionMay 28
Memorial Day ObservanceMay 31
Juneteenth ObservanceJun 18
Key Dates & Holidays
2026-2027Nurturing Growth in Grass Valley
Families often seek educational environments that foster a well-rounded experience. This institution may offer opportunities for students to engage in activities such as basketball and soccer, alongside enriching academic pursuits like STEM and robotics. Exploration in areas such as the arts and track programs could also be available.
Your Path to Learning
The Nevada County Office of Education School District is committed to providing a supportive learning environment for grades 6-12. Prospective families can review the academic calendar directly on this page for important dates and school events.
Frequently Asked Questions
What extracurricular activities are available for students?
While specific programs vary each year, students often have access to clubs like robotics and athletics such as soccer. We recommend contacting the administration directly for the current list of activities.
What is the typical class size?
Class sizes are designed to foster individual attention and engagement. For precise numbers, please reach out to the school's admissions office.
Are there opportunities for students interested in the arts?
Yes, the school aims to provide diverse opportunities. Students may find avenues to explore various artistic disciplines and creative projects.
How does the school support students with diverse learning needs?
The campus is dedicated to offering a supportive educational journey for all learners. Specific support services can be discussed with the school's educational team.
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