United States · Massachusetts · Devens
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Fmc Devens is a federal prison located in Worcester County, Massachusetts. Rated capacity: 1,066. Reported population: 999. Security level: Maximum. Data sourced from the HIFLD Prison Boundaries open dataset.
The Federal Medical Center, Devens (FMC Devens) is a United States federal prison in Massachusetts for male inmates requiring specialized or long-term medical or mental health care. It is designated as an administrative facility, which means it has inmates from different security classifications, from white-collar criminals to mobsters and sex offenders. It is operated by the Federal Bureau of Prisons, a division of the United States Department of Justice. FMC Devens also has a satellite camp housing minimum-security male inmates. FMC Devens is located in north-central Massachusetts, approximately 39 miles west of Boston, on the grounds of Fort Devens, which occupied the land before it was scaled back in size.
Source: Wikipedia article lead, CC-BY-SA.
Capacity
1,066
Current population
999
Occupancy
94%
Year opened
1999
Operational
Figures from official sources · verified 2 Jun 2026 · methodology
Operator
Federal Bureau of PrisonsPopulation held
male
Opened
1999
Region
Massachusetts
Security level
Maximum
Death-row facility
No
BOP-operated facility; conditions reports issued by the DOJ Office of Inspector General on a multi-year cycle.
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 978-796-1000 to confirm hours before your visit. Full regulations: https://www.bop.gov/locations/institutions/dev/
Address mail to: [Inmate Name & Register Number], FMC Devens, P.O. BOX 879, Ayer, MA 01432. 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.
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.
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Showing 9 of 10. Source: Wikidata + Wikipedia.
Derived signal — not a judgement. How it's calculated
This facility scores 0. The national average across 7,437 scored United States facilities is 2 — 2 points below national average.
Same country, matched on type + security level where possible.
Higher risk than 0% of peer facilities in United States.
How many of our profile fields are populated. We surface this so families and researchers know the limits.
Under CC-BY-4.0. Include the URL and access date; the site is a living reference and entries can change.
World Prisons. (2026). Fmc Devens. Retrieved July 21, 2026, from https://worldprisons.com/prisons/fmc-devens
"Fmc Devens." World Prisons. Accessed July 21, 2026. https://worldprisons.com/prisons/fmc-devens.
@misc{worldprisons-fmc-devens,
author = {{World Prisons}},
title = {Fmc Devens},
year = {2026},
url = {https://worldprisons.com/prisons/fmc-devens},
urldate = {2026-07-21}
}