PublicCharterGrades K-8
Mary Collins Charter School at Cherry Valley
1001 Cherry Street, Petaluma, CA 94952-2065(707) 778-4740
Total Students494
Student/Teacher26.25:1
Math Prof.49.38%
Reading Prof.60.31%
School Information
Charter SchoolYes
Magnet SchoolNo
Virtual SchoolNo
CountySonoma
School DistrictPetaluma Joint Union High School District
Principal / AdminLisa Pologeorgis(707) 778-4740
Founded2002
Free/Reduced Lunch26.52% Eligible
Acceptance Rate100%
Student Demographics
White72.7%
Hispanic11.9%
Black0.2%
Asian1.2%
Native American0.8%
Two Or More12.3%
Gender Distribution
46.4%
52.8%
Male Female
Students per Grade
Grade 145
Grade 243
Grade 357
Grade 455
Grade 564
Grade 664
Grade 744
Grade 851
School Calendar 2026-2027
July 2026
Academic Schedule • 2026-2027
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Mary Collins Charter School at Cherry Valley
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 ObservanceJul 3
First Day of SchoolAug 12
Labor Day HolidaySep 7
Thanksgiving BreakNov 23
Winter RecessDec 21
New Year's Day ObservanceJan 1
Martin Luther King Jr. HolidayJan 18
Presidents' Day HolidayFeb 15
Lincoln's Birthday ObservanceFeb 16
Mid-Winter Break Make-up DaysFeb 17
Spring BreakApr 5
Memorial Day HolidayMay 31
Last Day of SchoolJun 4
Juneteenth Holiday ObservanceJun 18
Key Dates & Holidays
2026-2027Community Reviews
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