PublicCharterGrades P-12
Mueller Charter (Robert L.) School
715 I Street, Chula Vista, CA 91910-5112(619) 422-6192
Total Students1,542
Student/Teacher22.89:1
Math Prof.36.92%
Reading Prof.51.92%
Graduation Rate100%
School Information
Charter SchoolYes
Magnet SchoolNo
Virtual SchoolNo
CountySan Diego
School DistrictChula Vista Elementary School District
Principal / AdminMaureen DeLuca(619) 422-6192
Founded1980
Free/Reduced Lunch77.76% Eligible
Acceptance Rate100%
Student Demographics
White3.6%
Hispanic92.3%
Black1.1%
Asian1.1%
Native American0.2%
Two Or More1.6%
Gender Distribution
53%
47%
Male Female
Students per Grade
Grade 194
Grade 294
Grade 3102
Grade 4118
Grade 5133
Grade 6113
Grade 7115
Grade 8109
Grade 9153
Grade 10135
Grade 11138
Grade 12118
School Calendar 2026-2027
July 2026
Academic Schedule • 2026-2027
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Teacher Professional Days - No School for Students
21
Teacher Professional Days - No School for Students
22
First Day of SchoolMinimum Days with Early Dismissal
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Minimum Days with Early Dismissal
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Minimum Days with Early Dismissal
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Mueller Charter (Robert L.) 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
Teacher Professional Days - No School for StudentsJul 20
First Day of SchoolJul 22
Minimum Days with Early DismissalJul 22
Minimum Days with Home Visits and Early DismissalAug 17
Labor Day HolidaySep 7
Fall RecessSep 28
Fall Recess ContinuedOct 1
Students Return from Fall BreakOct 6
Veteran's Day ObservedNov 11
Minimum Days with Conferences and Early DismissalNov 16
Thanksgiving BreakNov 23
Students Return after Thanksgiving BreakNov 30
Winter RecessDec 21
Winter Recess and Intersession/ELOP Period ContinuedJan 1
Students Return after Winter BreakJan 13
Martin Luther King Jr. DayJan 18
President's Day ObservanceFeb 12
President's Day ObservedFeb 15
Minimum Days with Conferences and Early DismissalMar 15
Spring Intersession PeriodMar 22
Spring BreakMar 29
Spring Break ContinuedApr 1
Students Return after Spring BreakApr 5
Memorial Day ObservedMay 31
Last Day for Students and StaffJun 4
Juneteenth Holiday ObservanceJun 18
Key Dates & Holidays
2026-2027Community Reviews
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