Jail Info

The original Mercer County Jail opened in 1989 and had a total capacity of 30. The recently completed addition houses an additional 72 inmates making the total inmate capacity 102. The jail houses all sentenced and arrested county inmates and Cook County and federal inmates in transit or awaiting trial. The jail is one of the Sheriff's Office's primary functions and is required by the Illinois State Constitution. The current supervisor of the correctional staff is Chief of Corrections Justin Hartman, and he oversees a diverse staff of correctional officers, medical personnel, and specializations, including field training officers. Officers assigned to the jail perform several essential tasks, including the booking of arrested persons, inmate medical screenings, inmate transport, court security and shakedowns, and cell checks. Please feel free to contact us directly if you cannot find what you are looking for on this page.

Bonding fee $42.00

Mercer County Sheriff's Office

Visitation Information: (No Visitor List Needed)

Inmates are only allowed one visit per day but can have one visit each day. The visitation hours are as described below.

A person who has been released from jail custody within the previous six months will not be allowed to visit an inmate in this facility.

Staff reserves the right to cancel any or all visits due to extenuating circumstances, abuse of visitation, or policy violations during visits. Staff will do everything possible to make sure this does not happen. Please conduct yourself according to policy so as not to lose this privilege.

Please print the names of visitors and the inmate you wish to visit along with the date of birth clearly to be read.

Sunday, Wednesday, and Saturday

9:00 am to 1:00 pm
2:30 pm to 9:00 pm

All visits must be scheduled at least 24 hours in advance by clicking the following link: www.securustech.net

You may also download the Securus Mobile App by following this link GET SECURUS MOBILE

All visitors must be at least 18 years of age and present a valid state-issued ID. There is a two-adult maximum per visit, and children are allowed to visit alongside their parent or guardian. All visitors must also adhere to the following dress code:

  • Shirt and shoes at all times
  • No revealing clothing
  • No gang-related clothing
  • No hats or other headgear (other than religious)

No items may be dropped off at the jail for inmates.

No food or drinks allowed inside visitation room.

Inmate mail can be sent to the following address:
Inmate Name
c/o Mercer County Jail
906 SW 3rd St.
Aledo, IL – 61231

Inmate Banking

Access JailATM.com, mail Money Order / Cashier’s check to the inmate at the above address, or deposit cash or credit/debit cards into Kiosk located in the Sheriff's Office visitation lobby.

Jail ATM

The Mercer County Sheriff's Office has contracted Jail ATM to handle inmate money deposits. You must register with Jail ATM to use the system. Inmate Name, ID number, and County of incarceration are used to make these deposits. Get this information from the inmate.

Simply click on the Jail ATM Deposits link on the left side of this page to learn more or deposit money.

Inmate Bonding

Jail ATM.com handles the bail process

  • Simply go to www.JailATM.com
  • Create a log-in to pay remote bonds
  • You will need the inmate's name
  • Choose Mercer County Sheriff's Office

If you need assistance, call customer support at 1-877-810-0914. Bails may also be paid in person at the Mercer County Sheriff's Office in Aledo, IL.

DOC Jail Inspection Reports

Click the link below to view the full report.

Prison Rape Elimination Act (PREA)

What is PREA?

Mercer County Sheriff's Office

The Prison Rape Elimination Act (PREA) is a federal law that prohibits sexual misconduct in correctional settings such as prisons, jails, lockups, juvenile facilities, and Immigration Services ⁄ ICE detention facilities. Sexual misconduct under this law includes:

Offender-on-offender sexual assault and abuse Staff-on-offender sexual misconduct (sexual inappropriate relationships with offenders) Offender-on-offender and staff-on-offender sexual harassment.

The Mercer County Jail takes every report of sexual misconduct seriously and will thoroughly, promptly, and objectively investigate all allegations.

The Mercer County Jail is committed to emphasizing a zero-tolerance for sexual abuse or assault of detainees/inmates, either by staff or other detainees/inmates. It shall be the policy of the Mercer County Jail to provide a safe and secure environment for all detainees, employees, contractors, and volunteers, free from the threat of sexual abuse or assault by maintaining a Sexual Abuse and Assault Prevention and Intervention Program that ensures effective procedures for preventing, reporting, responding to, investigating, and tracking incidents or allegations of sexual abuse or assault. The Mercer County Jail shall conduct investigations in a manner that avoids unnecessary embarrassment or indignity to the detainee/inmate. It shall also be the policy of the Mercer County Jail to pursue administrative, disciplinary, and criminal sanctions against any detainee/inmate, staff member, contractor, or volunteer found to have committed sexual abuse or assault against a detainee/inmate. It shall be the responsibility of the medical staff to provide immediate first aid to the victim and to refer the detainee/inmate to the appropriate medical facility.

Mercer County Jail's policies regarding sexual misconduct apply to all inmates/detainees. They also apply to employees, contractors, and volunteers.

If You Have Information Regarding a Mercer County Jail Inmate/Detainee Who May Have Been a Victim of Sexual Misconduct While in Custody.

Please Contact Us by Phone At (309) 582-5020

Finger Printing

Mercer County Sheriff's Office

The Mercer County Sheriff's Office offers fingerprinting services for licensing and employment purposes. The fee for this service is $50.00. Please contact the jail at (309) 582-5020 ahead of time to ensure that an officer will be available to fingerprint you when you arrive. All persons wishing to be fingerprinted are subject to search by jail staff before entering the facility. (Other conditions may apply)

The Mercer County Sheriff's Office also periodically conducts free fingerprinting for children. Children's fingerprints are helpful in conjunction with DNA swabbing as a part of Child Safety Kits. For more information on child fingerprinting, DNA swabbing or Child Safety Kits, please contact the Mercer County Sheriff's Office at (309) 582-5194.

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