Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest counts are the ones each agency reported to the FBI, as the FBI held them on October 8, 2026. Every office link was opened and checked against the office's own site between September 23, 2026 and September 25, 2026.
Princeton, New Jersey, in Mercer County, has about 31,000 residents (2024 Census Bureau estimate). Its court cases are filed in the Superior Court of New Jersey, Mercer County, and the file of each case, kept by the Superior Court Clerk and the County Clerk, is the public record of it. This guide says which court hears what, where to look a case up and who keeps the files.
This guide covers the courts, the records page, criminal cases, kinds of files and common questions.
Related guides: Princeton public records, Mercer County court records, Princeton arrest records, Princeton warrants, Princeton criminal records, Princeton police reports, New Jersey arrest records and New Jersey inmate search.
The Courts That Hear Cases from Princeton
In Princeton, the Superior Court of New Jersey, Mercer County hears every civil, criminal, family and probate case.
A city with a municipal court of its own tries the tickets written under its ordinances.
Divorces go to the Superior Court's Family Part, and the file stays with the Superior Court Clerk's Office.
The Superior Court Clerk and the County Clerk keep the files, and a copy of anything in a file comes from that office, under the court's own rules rather than the Open Public Records Act.
Looking Up a Case from Princeton
The court records page SearchSystems verified for the county is at njcourts.gov/courts/vicinages/mercer/offices (page title: Mercer Court Offices/Divisions | NJ Courts), phone 609-571-4200, which answered when SearchSystems opened it on September 23, 2026.
Statewide, New Jersey Courts Public Access is the Judiciary's free online case search for civil and criminal cases.
The New Jersey court page SearchSystems verified is at njcourts.gov/public.
What Reaches the Court from Princeton
Together, the 11 agencies in Mercer County with all twelve months of 2025 on file reported 6,190 arrests to the FBI that year; the County Prosecutor decides which of those arrests become cases in the Superior Court of New Jersey, Mercer County.
The County Prosecutor's page SearchSystems verified is at mercercounty.org/departments/emergency-management-public-safety/pro... (page title: Prosecutor's Office | Mercer County, NJ), which answered when SearchSystems opened it on September 23, 2026.
The Kinds of Court Files
Criminal cases, divorces, traffic tickets and evictions all end up as files of these courts, and the file is what the public sees of each.
The other Princeton guides take the kinds of file one at a time: Princeton criminal records, Princeton divorce records, Princeton traffic tickets, Princeton DUI and Princeton property records.
Frequently Asked Questions
How do I look up a court case in Princeton?
The court records page SearchSystems verified for the county is at njcourts.gov/courts/vicinages/mercer/offices, phone 609-571-4200. Statewide, New Jersey Courts Public Access is the Judiciary's free online case search for civil and criminal cases.
Which court hears felonies in Princeton?
The Superior Court of New Jersey, Mercer County, which hears every civil, criminal, family and probate case.
Who keeps the court records in Princeton?
The Superior Court Clerk and the County Clerk. Copies come from that office under the court's own rules.
Is there a statewide court case search in New Jersey?
Yes: New Jersey Courts Public Access, the Judiciary's free online case search for civil and criminal cases.
Is this the official Princeton website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official city, county, court and state offices described above and does not hold records, charge for them or take requests.