Jefferson Elementary School

Preparing the children of today for tomorrow...

Upcoming Events

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  • Principal 
    Principal's Secretary
    School Counselor/ Anti-Bullying Specialist
    Human Resources Manager/ District Anti-Bullying Coordinator
    Phone: 973-584-8955
    Fax: 973-584-4380
    Absence Verification: 973-584-8957
    School Hours: 9:10 AM - 3:20 PM
    (doors open at 8:50 AM)
    Delayed Opening: 10:50 AM - 3:20 PM
    Early Dismissal: 9:10 AM - 1:40 PM
    (doors open at 8:50 AM) 
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  • Week at a Glance

    Click HERE to read this week's events at Jefferson School.  Be sure to scroll to the second page for all PTA updates as well.  Thank you for your interest in Jefferson School where we "Carry on Koala Kindness!"



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  •  2016-2017 School Calendar
    The following revisions to our 16/17 School Calendar were approved at the Board of Ed meeting on September 6, 2016:
    • November 8, 2016 - School Closed, Election Day
    • Thursday, December 22, 2016 - Full Day for Students and Staff
    • Friday, December 23, 2016 - 4½-hour Day for Students and Staff

    Click here for a printable version of our revised school calendar.



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Principal's Message

  • Welcome

    Welcome to the Jefferson School Website!  Thank you for visiting.

    We are a PK-4 school located in beautiful Succasunna, NJ.  There are currently about 340 children attending, along with about 60 staff members.  At Jefferson School we are most proud of our commitment to Koala Kindness!  Students work with our motto "Carry on Koala Kindness" in everything they do. Our children demonstrate successful academic, social and emotional skills on a daily basis.

    We believe that learning is a Shared Responsibility.  At Jefferson, we are proud of our partnerships with the PTA, Community School, and many other programs that allow our children to rise to their potential.  Please enjoy exploring our website.  You can find a current "Week at a Glance" newsletter under the tab Our School.  

    Please feel free to reach out if you have any further questions regarding Jefferson School!


    Melissa Cosgrove

    Principal of Jefferson School