PublicGrades K-6
Mary Lou Dieterich Elementary School
2412 Warm Springs Drive, Modesto, CA 95350-9399(209) 550-8400
Total Students532
Student/Teacher22.77:1
Math Prof.41.64%
Reading Prof.43.69%
School Information
Charter SchoolNo
Magnet SchoolNo
Virtual SchoolNo
CountyStanislaus
School DistrictStanislaus Union Elementary School District
Principal / AdminSarah Hayes(209) 550-8400
Founded2004
Free/Reduced Lunch61.65% Eligible
Acceptance Rate100%
Student Demographics
White22.4%
Hispanic48.1%
Black3.6%
Asian10.5%
Native American0.6%
Pacific Islander0.8%
Two Or More14.1%
Gender Distribution
50.9%
49.1%
Male Female
Students per Grade
Grade 165
Grade 276
Grade 369
Grade 476
Grade 573
Grade 682
School Calendar 2026-2027
July 2026
Academic Schedule • 2026-2027
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Mary Lou Dieterich Elementary 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 ObservanceJul 3
First Day of School InstructionAug 11
K-6 Minimum Day - Welcome BackAug 13
7-8 Minimum Day - Welcome BackAug 27
Labor Day HolidaySep 7
K-6 Minimum Days - Parent ConferencesSep 21
7-8 Minimum Day - Parent ConferenceSep 24
K-8 Parent Conference Non-Student DaySep 25
7-8 1st Quarter EndOct 9
K-6 1st Trimester EndOct 29
Veteran's Day ObservanceNov 11
Thanksgiving Break HolidayNov 26
7-8 2nd Quarter EndDec 18
K-8 Minimum Day - Before BreakDec 18
Winter RecessDec 21
Winter Recess ContinuesJan 1
Classes Resume After Winter BreakJan 11
Martin Luther King Jr. Day HolidayJan 18
Lincoln's Day ObservanceFeb 8
K-6 2nd Trimester EndFeb 12
Presidents' Day HolidayFeb 15
7-8 3rd Quarter EndMar 19
Spring Break RecessMar 22
Good Friday ObservanceMar 26
Classes Resume After Spring BreakMar 29
K-6 Minimum Day - Open HouseMay 11
7-8 Minimum Day - Open HouseMay 13
K-6 3rd Trimester End - Minimum DayMay 28
7-8 4th Quarter End - Minimum DayMay 28
Last Day of School InstructionMay 28
Memorial Day HolidayMay 31
Juneteenth Observed HolidayJun 18
Key Dates & Holidays
2026-2027Community Reviews
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