Trenton City Jail

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Every detail on this page is checked by hand, not scraped. This unofficial directory helps friends and family of incarcerated individuals find critical information — inmate lists, locations, bail resources, visitation hours, rules, and text, phone, email, and mail services — for jails, detention centers, and prisons across the United States.

Last updated by Elizabeth Boyle

Search for an Inmate or Active Arrest Warrant in Mercer County

Trenton City Jail

For inmate information, the 34-bed Trenton City Jail can be reached at 609-989-3940 24 hours a day.

This facility conducts booking and processing for all misdemeanor and felony arrests in the county. Inmates whose charges require detention remain here until they bond out, are released on their own recognizance, or are held through the end of their trial.

The inmate search tool gives you access to the list of people currently in custody.

Those serving a sentence of less than one year serve it at this jail. Those with a sentence of a year or longer are transferred to the New Jersey State Prison System or the Federal Bureau of Prisons.

This page gives you information about the visitation schedule, how to fund an inmate’s account, mail an inmate, receive phone calls, use voicemail, send emails and texts, rent tablets, post bail, and purchase commissary.

Save the inmate’s jail ID or booking number, as it’s commonly needed for mail. If you can’t locate it online, call Trenton City Jail at 609-989-3940.

Phone: 609-989-3940

Physical Address:
225 North Clinton Avenue
Trenton, NJ 8609

Other Jails and Prisons

How Do You Find Someone in the Trenton City Jail?

To search for an inmate in the Trenton City Jail, review their criminal charges, the amount of their bond, when they can get visits, or even view their mugshot, go to the Official Jail Inmate Roster, or call the jail at 609-989-3940 for the information you are looking for. You can also look up an offender's Criminal Court Case for Mercer County or any other court in New Jersey.

Trenton City Jail Inmate Search

The Trenton City Jail maintains an average of 34 offenders in custody on any given day. The Trenton City Jail has a monthly turnover of 40% of their inmate population, another 30% turnover every 90 days, another 20% every six months, and approximately 10% stay incarcerated between six and twelve months. Every year Mercer County law enforcement agencies arrest and detain approximately 19,600 offenders.

The following charts of Mercer County inmate population demographics are updated daily. The information shown is for today. For research purposes we have broken down the inmates by sex, age, ethnicity, and criminal charges.

The information is compiled from the Mercer County Corrections Department, the state of New Jersey Department of Corrections, as well as the United States Department of Justice and Census Bureau records. It represents every person in custody in Mercer County.

For complete information on how to get directions, bond, visit, mail, send and receive email and texts, receive phone calls, and send money or commissary to an inmate, find arrest information for Mercer County and other counties surrounding this one, scroll down this page. We have a section for each.

We also provide photos of the jail that we have collected over the years.

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About the Trenton City Jail
This minimum security facility is located inside the Trenton Police Station. It is operated by the local police and holds their detainees until they are booked, charged, and assessed to determine if they will remain at the facility or be transferred directly to the county jail. With space for under 20 inmates, it does not function as a long term detention center and most inmates are waiting to determine what their bail, waiting for that bail to be paid, or are waiting to be transferred to another facility. Inmates do not remain at this facility for over a year, and most will not stay longer than a few days. Only adults are held here, with juveniles going to the facility that is intended for youth offenders, and male and female inmates remain separated throughout their experience. Phone calls can be made by inmates during their daytime hours of 7:30am and 7pm. Each call recipient must be listed on their approved call list and they must be available to accept the call. Incoming phone calls cannot be received by inmates, and they are not permitted to contact inmates at other facilities or those who are involved in their current case. Visiting lists are also created and all visitors must be preapproved by the staff before any visit may be scheduled. All visits will occur during the day, not beginning before 9am and not extending past 6pm, with no children under the age of 16 being permitted to visit at this specific facility.
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Recent Bookings & Arrests

What is the booking process for the Trenton City Jail?

After being arrested, the offender is brought to the Trenton City Jail for booking, which is the detailed process of identifying, classifying, deciding on charges, and whether the person will either be released on their own recognizance, allowed to be released on bail, or moved into the jail until their court date.

The first thing every newly arrested person must do is close their mouth. Everything an offender says may be used against them, so the best thing to do is remain silent when questioned about the arrest and what led to it.

These are the steps of booking someone into the Trenton City Jail:

  • Personal identification.
  • Mugshot(s).
  • Questions about medical history, mental health, drug and alcohol use, and gang affiliations.
  • Possible DNA.
  • Full body search.
  • Property forfeiture.
  • Free phone call.

Booking can take as little as an hour, or up to 48 hours on a busy weekend or holiday evening, or if the offender is violent, wasted or generally uncooperative. If you have any questions about when you can pay an offender's bond and what the cost will be, call the facility at 609-989-3940.

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Directions / Map to the Trenton City Jail
Inmate Bail and Bonding

How do you pay bail for someone who has been arrested in [county_extended}?

When an offender is arrested and brought to the Trenton City Jail in Trenton for booking, there are several outcomes after being processed.

1. The offender will be released with no bail, promising to return on a specific date to appear before a judge in either Municipal or Mercer County Court.
2. The offender is ordered to remain in jail until their court date.
3. The offender is allowed to be released after paying a specified bond or bail.  Call 609-989-3940 to get the exact amount.

The payment of an offender's bail or bond can take many shapes.

  • If can be paid by cash, money order or credit card.
  • It can be paid using a bail company, licensed to do business in Mercer County.
  • It can be paid by using a residential property in the county as collateral. 

For detailed Frequently Asked Questions and Answers about the entire bail process in Mercer County New Jersey, check out the Trenton City Jail Bail Page.

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Are there photos of the Trenton City Jail? What does it look like?
Other Jails in Mercer County

What are the other City and County Jails in Mercer County?

Mercer County County Jails
Mercer County City Jails
Mercer County Juvenile Facilities
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Other Jails Nearby

What are the other Jails in the Neighboring Counties surrounding Mercer County?

Mercer Monmouth Middlesex Somerset Hunterdon Burlington Bucks
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Search for an Inmate or Active Arrest Warrant in Mercer County

This facility, known as "Trenton City Jail" is also known as Trenton City Jail, New Jersey, Mercer.

The Trenton City Jail serves the following cities and towns of Mercer County: East Windsor, Ewing, Hamilton, Hightstown, Hopewell, Hopewell Township, Lawrence, Pennington, Princeton, Robbinsville, Trenton and West Windsor.