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Metropolitan Detention Center · Guaynabo, Puerto Rico

MDC Guaynabo

Security level
Administrative
Medical care level
2 of 4
Mental health care level
2 of 4
Population
983
Phone
787-749-4480

Last checked: November 3, 2026 (BOP documents for this prison) Intel last checked: November 3, 2026 BOP status updated: Nov 3, 2026, 9:10 pm ET News updated: Nov 3, 2026, 4:49 am ET

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Guaynabo at a glance

Guaynabo is a Metropolitan Detention Center (MDC) in Guaynabo, Puerto Rico, next to the Fort Buchanan Army Base. It holds men and women. The 2011 booklet says its primary mission is to hold pretrial and holdover people for the courts in Puerto Rico and the U.S. Virgin Islands. It also holds sentenced people who are about to go to a halfway house or home.

How many people
983 in the MDC (BOP, October 29, 2026).
Medical care level 2
Stable outpatients who need to see a clinician anywhere from monthly to every 6 months. Examples the BOP gives: diabetes controlled with medication, epilepsy, emphysema. Click here to read the source: BOP "Institution Care Levels for Medical Assignment," February 13, 2024 (released under FOIA 2024-03455) ↗
Mental health care level 2
Routine outpatient mental health care, or short crisis care such as suicide watch. The mental health list gives Guaynabo "Admin" security and level 2. The BOP does not post care levels on its website. This list is dated February 13, 2024 and came out through a public records request. Click here to read the source: BOP "Institution Care Levels for Medical Assignment," February 13, 2024 (released under FOIA 2024-03455) ↗
Ages
On the first day of the 2025 audit, ages ran from 18 to 77. Click here to read the source: PREA audit report, MDC Guaynabo (onsite July 22 to 24, 2025) ↗
Built for
The audit lists a capacity of 1276. The average population over the 12 months before the audit was 1103. Click here to read the source: PREA audit report, MDC Guaynabo (onsite July 22 to 24, 2025) ↗
Average stay
520.4 days in the Work Cadre Unit and 314.7 days in the jail units. Click here to read the source: PREA audit report, MDC Guaynabo (onsite July 22 to 24, 2025) ↗
Who is here
The 2018 visiting rules say they cover "designated, pretrial, holdover, Immigration or Custom Enforcement (ICE) and Material Witness" inmates. Click here to read the source: GUA 5267.09 B, Visiting Regulations (October 16, 2018) ↗

The BOP's own page for MDC Guaynabo.