Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest and crime 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 October 4, 2026.
Union County, New Jersey, has about 594,000 residents (2024 Census Bureau estimate). A police report belongs to the agency whose officer wrote it, so which office holds a report from Union County depends on where the incident happened: the Union County Sheriff's Office for the unincorporated county, the agency that reports for the city inside a city. This guide names each agency, where its records page is and what the Open Public Records Act requires of it.
This guide covers which agency, the sheriff's reports, the cities' reports, how many reports, what the law requires and common questions.
Related guides: Union County public records, Union County arrest records, Union County warrants, Union County inmate search, Union County criminal records, New Jersey arrest records and New Jersey inmate search.
Which Agency Holds a Report from Union County
The report of an incident is released by the agency that took it; the court and the jail hold their own records of the same event, but not the report.
In Union County that is the Union County Sheriff's Office for the unincorporated county and for any city that contracts with it for police service, and the agency that reports for a city where the city has one of its own.
The FBI's list also places the Union County State Police in Union County; a report taken on a state highway by it comes from that agency's own records office.
The FBI's list also carries Kean University (campus police) and Prosecutor in Union County and the Union County Park Police (other agency), each with a records office of its own.
Reports from the Union County Sheriff's Office
The Union County Sheriff's Office is the county agency; it had 1 violent and 0 property crimes reported for 2025 and reported 122 arrests for 2025.
Its reports come from its records unit. The office's page SearchSystems verified is its custody page, at unioncountynj.org (page title: Union County, NJ, Sheriff & Jail Info, Inmate Search), a site that blocks automated checks (HTTP 403), so open it in a browser.
Reports from the City Agencies in Union County
The 13 cities the FBI lists in Union County with a reporting agency of their own, the largest twelve first, with the police records page SearchSystems verified where the city has a guide:
- Elizabeth: 487 violent and 3,403 property crimes reported for 2025; 2,197 arrests reported for 2025.
- Plainfield: 1,226 arrests reported for 2024. The Plainfield police records page is at plainfieldnj.gov/departments/police/records_unit.php, phone 908.753.3018 (verified September 25, 2026).
- Linden: 86 violent and 978 property crimes reported for 2025; 985 arrests reported for 2023. The Linden police records page is at linden-nj.gov/documents/opra-request-form-pd, phone 866-850-0511 (verified September 25, 2026).
- Westfield: 0 violent and 174 property crimes reported for 2025; 111 arrests reported for 2025. The Westfield police records page is at westfieldnj.gov/248/Request-a-Copy-of-a-Police-Report, phone 908-789-6065 (verified September 25, 2026).
- Rahway: 58 violent and 229 property crimes reported for 2025; 340 arrests reported for 2025.
- Summit: 25 violent and 103 property crimes reported for 2025; 119 arrests reported for 2025. The Summit police records page is at cityofsummit.org/321/Police-Reports-Forms, phone 908-273-0051 (verified September 25, 2026).
- Roselle: 45 violent and 216 property crimes reported for 2025; 251 arrests reported for 2025. The Roselle police records page is at rosellepd.com/records-bureau, phone 908-259-4020 (verified September 25, 2026).
- Roselle Park: 3 violent and 89 property crimes reported for 2025; 80 arrests reported for 2025. The Roselle Park police department's page is at rosellepark.gov/170/Police, phone 908-245-2300 (verified September 25, 2026).
- New Providence: 3 violent and 28 property crimes reported for 2025; 81 arrests reported for 2025.
- Kenilworth: 2 violent and 45 property crimes reported for 2025; 99 arrests reported for 2025.
- Fanwood: 2 violent and 27 property crimes reported for 2025; 32 arrests reported for 2025. The Fanwood police department's page is at fanwoodnj.org/departments/police, phone 908.322.8236 (verified September 26, 2026).
- Mountainside: 1 violent and 37 property crimes reported for 2025; 40 arrests reported for 2025. The Mountainside police department's page is at mountainside-nj.com/department/police-department, phone (908) 232-8100 (verified September 26, 2026).
A city on that list is reported separately whether the officers are the city's own or the sheriff's under contract; the FBI's list does not say which.
The rest: Garwood.
How Many Reports: Union County in 2025
The 21 agencies in Union County with all twelve months of 2025 on file reported 820 violent and 7,552 property crimes to the FBI that year, each one a report taken by the agency that holds it.
Together, the 20 agencies in Union County with all twelve months of 2025 on file reported 5,391 arrests to the FBI that year, and each arrest is a report of its own.
What the Open Public Records Act Requires
The Open Public Records Act sets the rules: an answer within 7 business days, at a charge of copying at 5 cents a page for letter size, from the agency that holds the report.
Frequently Asked Questions
How do I get a police report in Union County?
From the agency whose officer took it: the Union County Sheriff's Office for its own arrests, or the agency that reports for the city where it happened. Under the Open Public Records Act the answer is due within 7 business days.
How long does an agency in Union County have to answer?
Under the Open Public Records Act, within 7 business days. It may charge copying at 5 cents a page for letter size.
Who has a crash report from a state highway in Union County?
The state agency whose officer took it; the FBI lists the Union County State Police in Union County.
How do I get a report from the Union County Sheriff's Office?
From its records unit. Under the Open Public Records Act the answer is due within 7 business days.
Is this the official Union County website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official county, court and state offices described above and does not hold records, charge for them or take requests.