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Message from Mercer County Board of Elections:

"As of Thursday, March 19, 2020 the Board of Elections has postponed all Board worker training classes for the upcoming Primary Election until further notice. Please revisit site for future updates.

We are working toward keeping our board workers and constituents safe as we navigate the Covid-19 virus.

Thank you for your support and consideration."

Mercer County Committee

We are encouraging applicants who need to submit a Petition for County Committee to submit this via email ( )or fax (609-688-2031). If individuals want to hand in their petitions please call 609-924-5704 to indicate they will be coming to the building and enter through the Police Department, 1 Valley Rd. There will be a drop box in front of the Clerk's office for the Petition.

Nomination Petition to County Committee

Petition Filing Deadline for Primary Election:

March 30, 2020 before 4:00 p.m. to the Princeton Municipal Clerks Office, 400 Witherspoon Street, Princeton NJ 08540, 609-924-5704.

Nomination Petition to Local Office – Mayor and Council

Signature Requirements

Petitioner Affidavit 

Nomination Petition Filing Deadline for Independent Candidates: 

June 2, 2020 before 4:00 p.m. to the Mercer County Clerk’s Office, 609-989-6494

Nomination Petition for Independent Candidates 

Signature Requirements

Voter Registration

Mail-in registration forms are available through the Princeton Clerk's Office 609-924-5704 or on line from the New Jersey Division of Elections.

The deadline for registering to vote or changing your address before this year's June 2, 2020 Primary Election is May 12, 2020.

Vote by Mail

If you are going to be out of town or unavailable to vote on Election Day or wish to Vote by Mail,applications are also available at our office or on line from the New Jersey Division of Elections.

The deadline to apply for a Vote by Mail Ballot by mail for the Primary Election is May 26, 2020. You may apply in person at the Mercer County Clerk’s Office up until June 1, 2020 at 3:00p.m.  

Party Affiliation

If you wish to change your Party Affiliation for the Primary Election you must do so by April 8, 2020.  Change of Party Affiliation forms are available in our office or on line from the New Jersey Division of Elections and must be filed with the Mercer County Clerk's prior to the deadline.

All applications must be received at the Mercer County Clerk’s Office for processing.

Additional Resources

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Relevant Documents

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2018 Annual Police Report22

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