United States · Puerto Rico · Guaynabo
Mdc Guaynabo
Data is aggregated from public sources and may be incomplete or out of date. Always verify with primary sources before acting on any figure. See data sources.
For families
How to send mail, money, and visit Mdc Guaynabo
Step-by-step guidance using the United States system — addresses, money services, visit booking, what to bring on your first visit.

Gallery
From Wikimedia Commons (CC-BY-SA where not otherwise stated).
Mdc Guaynabo is a federal prison located in Guaynabo County, Puerto Rico. Rated capacity: 897. Reported population: 25. Security level: Maximum. Data sourced from the HIFLD Prison Boundaries open dataset.
Background
The Metropolitan Detention Center, Guaynabo (MDC Guaynabo) is a United States federal prison facility in Guaynabo, Puerto Rico. It holds male and female inmates of all security levels who are awaiting trial or sentencing. It is operated by the Federal Bureau of Prisons, a division of the United States Department of Justice. MDC Guaynabo is located next to Fort Buchanan U.S. Army base, and is 6 miles (9.7 km) west of San Juan, the capital of Puerto Rico. In the wake of the destruction of Hurricane Maria in September 2017, some 1200 federal prisoners were transferred from Guaynabo to the Federal Correctional Institution, Yazoo City in Mississippi.
Source: Wikipedia article lead, CC-BY-SA.
Capacity
897
Current population
25
Occupancy
3%
Year opened
—
Operational
Figures from official sources · verified 2 Jun 2026 · methodology
Facility profile
Operator
Federal Bureau of PrisonsPopulation held
mixed
Opened
—
Region
Puerto Rico
Security level
Maximum
Death-row facility
No
Conditions
No conditions summary available yet.
Visiting
Visiting days and hours are set by the Warden and vary by housing unit; consult the facility's official visiting regulations for the current schedule. All visitors must be on the inmate's approved visitor list (submitted on BOP form BP-A0629) and present government-issued photo ID. Dress-code and contraband restrictions apply — review the visiting regulations before arriving. Call 787-749-4480 to confirm hours before your visit. Full regulations: https://www.bop.gov/locations/institutions/gua/
Mailing
Address mail to: [Inmate Name & Register Number], MDC Guaynabo, P.O. BOX 2005, Catano, RQ 00963. No cash, staples, or metal fasteners. Books must be sent directly from a publisher or approved retailer. Photos must not be Polaroid and may not exceed limits set by policy. Money orders payable to the inmate's name and register number; or use Western Union QuickCollect to the BOP Trust Fund. TRULINCS (CorrLinks) provides email where the inmate has subscribed.
Practical info
Inmate funds via Western Union QuickCollect to the BOP Trust Fund (receiver: inmate name, prisoner ID, BOP Trust Fund). Email service via CorrLinks where the inmate has subscribed.
Known issues
No major issues documented in our database.
Contact & address
Conditions Risk Score
Derived signal — not a judgement. How it's calculated
- Overcrowding
- 0/30
- Oversight reports
- 0/30
- Structural flags
- 0/15
- Death signals
- 0/15
- Conditions text
- 0/10
This facility scores 0. The national average across 7,437 scored United States facilities is 2 — 2 points below national average.
Related facilities
Same country, matched on type + security level where possible.
- Mcc New YorkNew YorkMaximumFederal prison162% occupancy
- Usp HazeltonBruceton MillsMaximumFederal prison129% occupancy
- Mdc BrooklynBrooklynMaximumFederal prison89% occupancy
- Fmc CarswellFort WorthMaximumFederal prison133% occupancy
- Ausp ThomsonThomsonMaximumFederal prison100% occupancy
- Usp AllenwoodAllenwoodMaximumFederal prison130% occupancy
Compared to other facilities in United States
7436 peersData completeness
90%How many of our profile fields are populated. We surface this so families and researchers know the limits.
Sources
- HIFLD Prison Boundaries
- HIFLD dataset query
- Wikipedia — Wikimedia Foundation
- HIFLD Prison Boundaries — US Department of Homeland Security â HIFLD Open Data
- US Federal Bureau of Prisons â locations directory — US Department of Justice
- Wikidata (Q6825077)
- Wikipedia
- Wikimedia Commons
- See /data-sources for our overall methodology.
Cite this page
Under CC-BY-4.0. Include the URL and access date; the site is a living reference and entries can change.
World Prisons. (2026). Mdc Guaynabo. Retrieved October 20, 2026, from https://worldprisons.com/prisons/mdc-guaynabo
"Mdc Guaynabo." World Prisons. Accessed October 20, 2026. https://worldprisons.com/prisons/mdc-guaynabo.
@misc{worldprisons-mdc-guaynabo,
author = {{World Prisons}},
title = {Mdc Guaynabo},
year = {2026},
url = {https://worldprisons.com/prisons/mdc-guaynabo},
urldate = {2026-10-20}
}
