Jefferson Elementary School

Preparing the children of today for tomorrow...


  • Summer Hours will be from 9am to 3pm. 

    Office will be closed today, August 23rd, from 11:00 to 1:00.  Thank you!

    Registration will now take place at a central location.  If you need to register your child for the 2019-2020 school year please click HERE to view directions.  Thank you!


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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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  • Back to School Packets Now Available
    The Genesis parent portal is now open to begin reviewing and acknowledging back to school documents and forms.  Please go to and select your child's school to review the documents and forms for the new school year.  
    You will need to review and complete all of the forms that are marked as REQUIRED on the back to school website for your child's school.  School bus route information and class placement/schedules will be available through the parent portal as of Monday evening, August 5th for Eisenhower Middle School and Roxbury High School and Monday evening, August 19th for all other schools.  
    Please note class placement/schedules will not be available if you have not completed the acknowledgement of the required documents and forms in the parent portal. 

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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!"

    Available Flyers  

                            Summer Work       Summer Math Log       Summer ELA Log  

                                                   Library Reading Program                              



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  • Open House Incoming PreK-4!
    Thursday, August 29th 2019
    from 10am - 2pm 

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  •  Kindergarten Orientation 2019 
    Click HERE for our Frequently Asked Questions!

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  • Supply Lists for the 2019 - 2020 School Year:


    Grade 1

    Grade 2

    Grade 3

    Grade 4


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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 360 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 "ROCKS" (Respect Others, self, environment by being Courteous, Kind, and Safe) in everything they do. Our children demonstrate growth in 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


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