PublicGrades K-8
Joseph Widmer Jr. Elementary School
751 Stonebridge Lane, Lathrop, CA 95330-8928(209) 938-6340
Total Students923
Student/Teacher24.52:1
Math Prof.17.84%
Reading Prof.30.53%
School Information
Charter SchoolNo
Magnet SchoolNo
Virtual SchoolNo
CountySan Joaquin
School DistrictManteca Unified School District
Principal / AdminIgnacio Cantu(209) 938-6340
Founded2001
Free/Reduced Lunch64.36% Eligible
Acceptance Rate100%
Student Demographics
White8.5%
Hispanic46.4%
Black6.3%
Asian32.7%
Native American0.3%
Pacific Islander1.7%
Two Or More4.1%
Gender Distribution
50.3%
49.7%
Male Female
Students per Grade
Grade 182
Grade 288
Grade 3114
Grade 4105
Grade 5107
Grade 6104
Grade 7110
Grade 8110
School Calendar 2026-2027
August 2026
Academic Schedule • 2026-2027
Holiday Event
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Joseph Widmer Jr. 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
First Day of School / 1st Trimester BeginsAug 6
District-wide Minimum DayAug 25
Labor Day HolidaySep 7
Elementary School Minimum DaysSep 8
Elementary School Minimum DaySep 14
Elementary School Minimum DaySep 24
High School Minimum DayOct 1
1st Semester EndsOct 2
Fall RecessOct 5
Elementary School Minimum DayOct 30
Elementary School Minimum DayNov 5
1st Trimester EndsNov 6
2nd Trimester BeginsNov 9
Veterans Day HolidayNov 11
District-wide Minimum DayNov 24
Thanksgiving BreakNov 26
High School Minimum DayDec 17
2nd Semester EndsDec 18
Winter RecessDec 21
New Year's Day HolidayJan 1
Martin Luther King Day HolidayJan 18
Elementary School Minimum DaysJan 25
Lincoln's Birthday HolidayFeb 12
Washington's Birthday HolidayFeb 15
Elementary School Minimum Day / 2nd Trimester EndsFeb 26
3rd Trimester BeginsMar 1
High School Minimum DayMar 11
District-wide Minimum Day / 3rd Semester EndsMar 12
Spring BreakMar 15
District-wide Minimum DayMar 25
Spring Break (Extended Holiday)Mar 26
Elementary School Minimum DayApr 15
High School Minimum DaysMay 25
District-wide Minimum DayMay 27
District-wide Minimum Day / Last Day of SchoolMay 28
Memorial Day HolidayMay 31
Key Dates & Holidays
2026-2027Nurturing Growth from Kindergarten to Eighth Grade
Families often seek institutions that foster well-rounded development. Students may have opportunities to engage in athletics like soccer and track, or explore enriching clubs such as STEM and robotics. This campus aims to provide diverse avenues for learning and personal growth.
Your Partner in Educational Journeys
As part of the Manteca Unified School District, our school is dedicated to student success. Parents can review the academic calendar on this page for important dates and events. We are committed to a strong home-school connection.
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 grades does Joseph Widmer Jr. Elementary School serve?
This institution serves students from Kindergarten through the 8th grade.
How can I get involved in the school community?
Parent involvement is highly valued. Opportunities range from volunteering in classrooms to participating in school events. Please reach out to the main office for current needs and ways to contribute.
Is this a public school?
Yes, Joseph Widmer Jr. Elementary School is a public school within the Manteca Unified School District.
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