Marion U.S. Penitentiary

General Prison Information

Official Prison Name: Marion U.S. Penitentiary
Prison Code: MAR
Prison Type: U.S. Penitentiary
Region: North Central Region
State: Illinois
Security Level: Medium

Contact Information

Here you have the street address and mailing address for Marion U.S. Penitentiary. Use the mailing address if you are sending a letter or package to a prisoner at Marion U.S. Penitentiary, and make sure to use the physical address if you need to know the actual location of Marion U.S. Penitentiary.

Mailing Address

Make sure to also read the Inmate Mail and Package Procedures section below if you are going to send a package or letter to an inmate to make sure that you correctly address the letter or package, and do the correct steps for sending a package or letter. If you do not use the correct directions, the package or letter could not get delivered.

USP Marion
U.S. Penitentiary
P.O. Box 1000
Marion IL, 62959

Street Address / Prison Location

Use the street address if you plan to visit a prisoner. Be sure to also read the Inmate Visitation Procedures and Inmate Visitation Schedule sections on this page if you are going to try to visit an inmate here.

Marion U.S. Penitentiary
4500 Prison Road
Marion IL, 62959

Phone Number

Prisoners don’t have phones, so you won’t be able to call an inmate, however, there are some times when it may be helpful to know the telephone number to Marion U.S. Penitentiary.

(618) 964-1441

Fax Number

Federal inmates don’t have fax machines, so you won’t be able to fax inmates, but there are some times when it might be necessary to know the fax number to the facility.

(618) 964-2058 

Email Address

The email address listed below is the main email for the prison. You cannot email prisoners at this address. If you want to email a prisoner, read the Inmate Email information below.


Inmate and Staff Statistics

Total Inmates:   1,175 

Inmate Email

To send an email message to a prisoner you must follow an exact process to ensure that the message gets to the prisoner.

TRULINCS – Trust Fund Limited Inmate Computer System

Federal prisoners are allowed to emails only from persons listed on their approved contact list. An federal inmate has to make a request to recieve and send emails with a family member or friend by placing them into their contact list.

Every email is monitored. Prison inmates must consent to email monitoring when they join the program. Family and friends of the inmate must consent to getting monitored when they agree to corresponding with the inmate and are reminded each and every time that they get an email from the inmate.

When a person is added to an inmates contact list you will get an email notification which sends them to CorrLink at
CorrLink Inmate Email System

Email messages must not jeopardize the public or the security, safety, or operation of the prison. Also, email cannot be longer than 13,000 characters. Email messages that don’t follow these rules are not allowed.

Inmate Internet Access

Federal prisoners are not permitted to access the web.

Inmate Mail and Package Procedures

There are special steps that you must follow when sending mail to a prisoner. If you don’t follow these rules then the letters and packages might be returned to you.

Before you send a package or letter, be sure to read the links below:

Mail Monitoring

Correctional facility guards will open and read and inspect all received general packages and mail. Received general packages and mail is read as frequently as deemed necessary to ensure safety and security or watch a particular problem having to do with inmates.

How to Address a Letter to an Inmate

Below is the proper format for how you need to address mail to a federal inmate at Marion Federal Prison:

USP Marion
U.S. Penitentiary
P.O. Box 1000
Marion IL, 62959

To read the full Bureau of Prisons Policy on Correnspondence, click here: Bureau of Prisons – Correnspondence Policy

Inmate Money

Every prison has a Commissary which was started to provide a bank type account for inmate money and for purchasing things not issued regularly by the facility.

How to Send an Inmate Money

Friends, family, or other people can deposit money into these Commissary accounts using the U.S. Postal Service and Western Union.

Via U.S. Postal Service: An inmate’s family and friends can to send prisoners money through postal mail and have to send it to the following address and follow the policies written below:

Federal Bureau of Prisons
Insert Valid Committed Inmate Name
Insert Inmate Eight-Digit Register Number
Post Office Box 474701
Des Moines, Iowa 50947-0001

The deposit have to be in the form of a money order that is made out to the prisoner’s full committed name and complete eight-digit register number. You should use a U.S. Postal Service money order, since all non-postal money orders processed through the National Lockbox will be placed on a 15-day hold period, and in this time the prisoner will not get the money. The Bureau of Prisons will return to the sender any funds that don’t have valid prisoner info but only if the envelope it was sent it has an adequate return address. Cash and checks will not be deposited to the inmate’s account so do not send any cash or checks.

Via Western Union Quick Collect Program: Prisoner’s friends and family are also able to send prisoners money using Western Union’s Quick Collect Program. Money sent to a prisoner using the Western Union Quick Collect Program can be sent by one of these methods:

  1. At Western Union location using cash. In order to locate the closest agent, you should call 1-800-325-6000 or visit
  2. On the phone with a credit or debit card: Call 1-800-634-3422 and choose phone promt option 2.
  3. On the web with a credit/debit card: Go to and choose “Quick Collect.”

For the Western Union Quick Collect transaction, all of this info must be included:

  1. Correct and valid Inmate Eight-Digit Register Number (entered with no spaces or dashes) followed immediately by Inmate’s Last Name
  2. Committed Inmate Full Name entered on Attention Line
  3. Code City: FBOP, DC

If the wrong register number and/or name are used and accepted and sent to that federal inmate, funds might not get returned.

For additional info about how to send a prisoner money, go to the official Bureau of Prisons website:
Bureau of Prisons – Inmate Money

Inmate Locator

Inmates are often transported to different correctional facilities around the nation, so sometimes you may have to find what facility an inmate is at using the inmate locator. Follow the link here to locate an inmate.
Inmate Search

Inmate Visitation Schedule

Visiting hours are from 8:00 AM to 3:00 PM on Friday, Saturday and Sunday, as well as every federally recognized holiday.

Inmate Visitor Procedures

Every prison has its own rules for prison visitation and they get changed frequently. The information below could be different when you are reading this, so be sure to also check the prison’s website to get the latest visitation procedures.

Visitation Sign-In and Check-In

The visitation guard ensures every visitor signs the prison visitors log when they enter the prison and also when they leave.

Identification Required

Photo ID of all visitors is required. Acceptable forms of id are Driver’s License and Social Security Card; although, a state issued photo id is OK.

For all of the points shown below, check out the actual prison facility website as this info is changed often:

  • Visitation Rules
  • Visitation Dress Code
  • Things You Can and Cannot Take to Visitation
  • Special Rules For Childred, Special Visits, Pastoral or Attorney Visits

To read the complete Marion U.S. Penitentiary Visitation Guide go to: Visitation Procedures

Prison Jobs & Hiring

Trying to find a job at a prison? Have experience? Have you worked at a prison facility previously?

If so, go to: Marion U.S. Penitentiary Jobs


The official website: Marion U.S. Penitentiary Website

Tell Your Story – Write a Review of Marion U.S. Penitentiary

Have you ever been a prisoner in Marion U.S. Penitentiary? Do you have a family member or friend that is a prisoner there? Have you ever been to visit an inmate at this correctional facility?

If so, then we would like you to write your review about it. Write about what you experienced so other people can find out what to expect.

Things you might want to write in the review:

  • Prison conditions
  • Prison layout and facility
  • Guards and staff
  • Commissary and food
  • Visitation
  • Inmates
  • Inmate safety
  • Gangs
  • Prisoner activities and programs

If you are a prisoner at this prison, include your address if you want people to be able to mail you.

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