Police and sheriff · New Jersey

Law Enforcement Agencies in Middlesex County, New Jersey

30 agenciesFBI UCR list

The FBI's Uniform Crime Reporting program lists 30 law enforcement agencies in Middlesex County, New Jersey: the county sheriff's office, 25 city or town police departments, 1 state police post, 2 campus police departments and 1 other agency.

Sheriff's Office and County Police in Middlesex County

  • Middlesex County Sheriff's OfficeCounty sheriff or police · ORI NJ0120000

City and Town Police Departments in Middlesex County

  • Carteret Police DepartmentCity or town police · ORI NJ0120100 · NIBRS since 2022
  • Cranbury Township Police DepartmentCity or town police · ORI NJ0120200 · NIBRS since 2022
  • Dunellen Police DepartmentCity or town police · ORI NJ0120300 · NIBRS since 2023
  • East Brunswick Township Police DepartmentCity or town police · ORI NJ0120400 · NIBRS since 2021
  • Edison Township Police DepartmentCity or town police · ORI NJ0120500
  • Helmetta Police DepartmentCity or town police · ORI NJ0120600
  • Highland Park Police DepartmentCity or town police · ORI NJ0120700 · NIBRS since 2021
  • Jamesburg Police DepartmentCity or town police · ORI NJ0120800 · NIBRS since 2025
  • Metuchen Police DepartmentCity or town police · ORI NJ0121000 · NIBRS since 2021
  • Middlesex Police DepartmentCity or town police · ORI NJ0121100 · NIBRS since 2021
  • Milltown Police DepartmentCity or town police · ORI NJ0121200 · NIBRS since 2021
  • Monroe Township Police Department, Middlesex CountyCity or town police · ORI NJ0121300 · NIBRS since 2026
  • New Brunswick Police DepartmentCity or town police · ORI NJ0121400 · NIBRS since 2021
  • North Brunswick Township Police DepartmentCity or town police · ORI NJ0121500
  • Old Bridge Township Police DepartmentCity or town police · ORI NJ0120900 · NIBRS since 2025
  • Perth Amboy Police DepartmentCity or town police · ORI NJ0121600 · NIBRS since 2025
  • Piscataway Township Police DepartmentCity or town police · ORI NJ0121700 · NIBRS since 2025
  • Plainsboro Township Police DepartmentCity or town police · ORI NJ0121800 · NIBRS since 2025
  • Sayreville Police DepartmentCity or town police · ORI NJ0121900 · NIBRS since 2024
  • South Amboy Police DepartmentCity or town police · ORI NJ0122000 · NIBRS since 2021
  • South Brunswick Township Police DepartmentCity or town police · ORI NJ0122100 · NIBRS since 2021
  • South Plainfield Police DepartmentCity or town police · ORI NJ0122200 · NIBRS since 2021
  • South River Police DepartmentCity or town police · ORI NJ0122300 · NIBRS since 2021
  • Spotswood Police DepartmentCity or town police · ORI NJ0122400 · NIBRS since 2023
  • Woodbridge Township Police DepartmentCity or town police · ORI NJ0122500 · NIBRS since 2024

State Police in Middlesex County

  • State Police: Middlesex CountyState police · ORI NJ012SP00

College and University Police in Middlesex County

  • Middlesex County CollegeCollege or university police · ORI NJ0122600 · NIBRS since 2022
  • Rutgers University: New BrunswickCollege or university police · ORI NJ0123000 · NIBRS since 2021

Other Law Enforcement Agencies in Middlesex County

  • Prosecutor: Middlesex CountyOther agency · ORI NJ0128900

Where People Arrested in Middlesex County Are Held

In most U.S. counties, adults arrested by city police, the sheriff or state troopers are booked into the county jail first. Some larger cities run their own holding jail, so if a person is not on the county roster, call the arresting department.

Law Enforcement in Other New Jersey Counties

Agency names, types and ORI codes come from the FBI Crime Data Explorer agency list, retrieved November 2026. NIBRS dates show when an agency began reporting incident-level crime data to the FBI.

Frequently Asked Questions

How many police departments are in Middlesex County?
The FBI lists 30 law enforcement agencies in Middlesex County, including 25 city or town police departments. The full list is on this page.
Who runs the jail in Middlesex County?
In most counties the sheriff runs the county jail. In Middlesex County that is the Middlesex County Sheriff's Office. See Middlesex County Jail on this site for the jail's roster or contact details.
What is an ORI number?
An ORI is the nine-character identifier the FBI assigns to each law enforcement agency for crime reporting, for example NJ0121000. It is useful when you request records or read crime statistics.