Guaynabo Metropolitan Detention Center

General Prison Information

Official Prison Name: Guaynabo Metropolitan Detention Center
Prison Code: GUA
Prison Type: Metropolitan Detention Center
Region: Southeast Region
State: Puerto Rico
Security Level: Administrative

Contact Information

Below you have the street address and mailing address for Guaynabo Metropolitan Detention Center. Use the mailing address if you are sending a letter or package to an inmate at Guaynabo Metropolitan Detention Center, and make sure to use the physical address if you need to know the location of Guaynabo Metropolitan Detention Center.

Mailing Address

Make sure to read over the Inmate Mail and Package Procedures section on this page if you are going to send something to an inmate to make sure that you correctly write the address, and do the correct steps for sending a package or letter. If you do not use the correct directions, it could get sent back.

MDC Guaynabo
Metropolitan Detention Center
P.O. Box 2005
Catano PR, 963

Street Address / Prison Location

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

Guaynabo Metropolitan Detention Center
652 Carretera 28
Guaynabo PR, 965

Phone Number

Prisoners don’t have phones, so you can’t call inmates, however, there are some times when it might be helpful to know the telephone number to the prison.

(787) 749-4480

Fax Number

Prisoners don’t have faxes, so you can’t send a fax to an inmate, but there are cases when it might be necessary to know the fax number to the prison.

(787) 775-7824 

Email Address

The email address listed below is the primary email for the prison. You can’t reach inmates at this email. If you want to email a prisoner, check out the Inmate Email information below.


Inmate and Staff Statistics

Total Inmates:   1,460 

Inmate Email

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

TRULINCS – Trust Fund Limited Inmate Computer System

Federal prisoners are allowed to email letters only from people listed on their approved contact list. An federal prisoner has to make a request to recieve and send email messages with someone by putting that person into their contact list.

All email correspondence is subject to monitoring. Prison inmates must consent to getting monitored when they join the system. Inmate contacts must consent to getting monitored when they agree to corresponding with the prisoner and are notified every time that they get email correspondence from the inmate.

When a contact is approved that person will get an email notification which directs them to the CorrLink system at
CorrLink Inmate Email System

Email correspondence may not endanger the public or the security, safety, or operation of the prison facility. In addition, the emails cannot exceed 13,000 characters. Emails that are not consistent with these rules will not get sent.

Inmate Internet Access

Federal inmates are not allowed to access the internet.

Inmate Mail and Package Procedures

There are certain steps that you must follow when sending a package or letter to a federal prisoner. If you don’t follow these rules then the mail might not get delivered.

Before you send anything, you should read the sections below:

Mail Monitoring

Guaynabo Metropolitan Detention Center officials do open and inspect and read all received general packages and mail. Received general mail and packages may be read as frequently as deemed necessary to ensure security or watch a particular problem regarding an inmate.

How to Address a Letter to an Inmate

Below is the proper format for how you must address a letter or package to a federal prisoner at Guaynabo Federal Prison:

MDC Guaynabo
Metropolitan Detention Center
P.O. Box 2005
Catano PR, 963

To read the entire Bureau of Prisons Policy on Correnspondence, go to: Bureau of Prisons – Correnspondence Policy

Inmate Money

Every federal prison has a Commissary which was created to provide inmates a bank-like account for prisoner money and for buying things not issued by the Bureau of Prisons.

How to Send an Inmate Money

Friends, family, or other people can add 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 choose to send prisoners money in postal mail and must send money to the following address and follow the steps 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 a money order that is made out to the prisoner’s full committed name and complete eight-digit register number. You are advised to 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, in which the prisoner will not get the funds. The Bureau of Prisons will return any funds that don’t have correct prisoner info if the envelope it was sent it has a return address. Checks and cash will not be accepted for deposit so do not send any cash or checks.

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

  1. At a physical location using cash. In order to locate the closest agent, you can call 1-800-325-6000 or visit
  2. On the phone with a credit or debit card: Call 1-800-634-3422 and select menu option 2.
  3. Online with a credit/debit card: Visit and choose “Quick Collect.”

For the Western Union Quick Collect transaction, this info has to be included:

  1. Correct 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 the wrong federal inmate, funds might not be returned.

For additional info about how to send money to an inmate, check out the official Bureau of Prisons website:
Bureau of Prisons – Inmate Money

Inmate Locator

Inmates are frequently moved to different prisons throughout the country, so you might need to find where an inmate is located using the inmate locator. Follow the link here to look up an federal 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 federal prison has its own procedures for prison visitation and these rules get changed often. The rules listed here may be out of date when you are reading this, so make sure to also go to the prison’s website to get the latest rules for visitation.

Visitation Sign-In and Check-In

The entrance guard ensures each visitor signs the prisoner visitors log when they enter the prison and upon departure.

Identification Required

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

For all of the points shown below, go to the official 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 Guaynabo Metropolitan Detention Center Visitation Guide go to: Visitation Instructions

Prison Jobs & Hiring

Looking for a job at a prison? Have any prior experience? Have you worked at a prison facility previously?

If so, click here: Guaynabo Metropolitan Detention Center Jobs


The official website: Guaynabo Metropolitan Detention Center Website

Tell Your Story – Write a Review of Guaynabo Metropolitan Detention Center

Have you ever spent any time in Guaynabo Metropolitan Detention Center? Do you have a family member or friend that spent time there? Have you ever been to visit a prisoner there?

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

Things you can put in your comment:

  • Prison conditions
  • Prison layout and facility
  • Staff and guards
  • Food and commissary
  • Visitation
  • Inmates
  • Safety
  • Gang activity
  • Prisoner activities and programs

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

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