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: 8:50 AM - 3:20 PM
    Delayed Opening: 10:50 AM - 3:20 PM
    Early Dismissal: 8:50 AM - 1:40 PM
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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!"


    Enter This Month's Character Contest!  Jefferson ROCKS- Respect Yourself by being thankful for having what you need and Respect Others by providing for their needs!

    Those Shoes

       Click HERE for PK-1            Click HERE for grades 2-4 


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  • K-6 STEAM Expo
    STEAM Fair Flyer Calling all Scientists and Engineers! Registration for the  K-6 STEAM Expo is now thru January 31st. The K-6 STEAM Expo will be Saturday, March 10, 2018. 
    For more information and to register online, please visit Each student will receive a participation certificate.

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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


  • CSM Certification
  • Google Reference District