PublicCharterGrades 6-8
Twin Hills Charter Middle School
1685 Watertrough Road, Sebastopol, CA 95472-4647(707) 823-7446
Total Students207
Student/Teacher16.93:1
Math Prof.54.68%
Reading Prof.67%
School Information
Charter SchoolYes
Magnet SchoolNo
Virtual SchoolNo
CountySonoma
School DistrictTwin Hills Union Elementary School District
Principal / AdminShawna Whitestine(707) 823-7446
Founded1980
Free/Reduced Lunch21.26% Eligible
Acceptance Rate100%
Student Demographics
White58%
Hispanic24.2%
Black0.5%
Asian1%
Two Or More15%
Gender Distribution
43.5%
55.1%
Male Female
Students per Grade
Grade 664
Grade 781
Grade 862
School Calendar 2026-2027
July 2026
Academic Schedule • 2026-2027
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Twin Hills Charter Middle School
Academic Calendar (2026-2027)
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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 3
First Student Day (Apple Blossom, Twin Hills CMS, SunRidge)Aug 13
Minimum Day (All Sites) - Start of SchoolAug 13
First Student Day (Orchard View)Aug 17
Wednesday Early Release Begins (Apple Blossom, Twin Hills CMS)Aug 19
Thursday Early Release Begins (SunRidge)Aug 20
Labor Day HolidaySep 7
Winter Break BeginsDec 21
Winter Break EndsJan 1
Minimum Day (Twin Hills Charter Middle Only)Jan 8
Martin Luther King Jr. Day HolidayJan 18
Lincoln Day HolidayFeb 12
Presidents Day HolidayFeb 15
Minimum Day (Twin Hills Charter Middle Only)Mar 19
Spring Break RecessMar 22
Local Holiday for EmergenciesApr 9
Local Holiday for EmergenciesMay 24
Last Student Day (Orchard View)May 28
Memorial Day HolidayMay 31
Minimum Days (All Sites)Jun 1
Last Student Day (Apple Blossom, Twin Hills CMS, SunRidge)Jun 2
Juneteenth Observed HolidayJun 18
Key Dates & Holidays
2026-2027Nurturing Growth in Grades 6-8
Families often seek middle schools offering a vibrant extracurricular landscape. This institution recognizes the importance of diverse interests, with students potentially engaging in sports like basketball and soccer. Opportunities to explore enriching programs such as STEM, robotics, or the arts are also frequently sought after.
Discover Your Path at Twin Hills
This public middle school, part of the Twin Hills Union Elementary School District, provides a supportive environment for students in Sebastopol, CA. Parents can find important dates and deadlines by reviewing the academic calendar available on this page.
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.
How does the school support academic challenges?
The campus focuses on providing a solid educational foundation, with dedicated educators guiding students through key academic subjects and fostering critical thinking skills.
What is the typical school day like?
A typical school day involves structured learning periods across various subjects, interspersed with breaks and opportunities for student engagement.
Are there opportunities for parental involvement?
Parental involvement is often encouraged through school events, volunteer opportunities, and communication channels with teachers and administration.
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