United States · MD · Baltimore
Maryland Penitentiary
Data is aggregated from public sources and may be incomplete or out of date.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 Maryland Penitentiary
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).
Photo by groupuscule via Wikimedia Commons (CC BY-SA 3.0)
Photo by groupuscule via Wikimedia Commons (CC BY-SA 3.0)

Photo by Baltimore Heritage from Baltimore, MD, USA via Wikimedia Commons (CC0)
Photo by groupuscule via Wikimedia Commons (CC BY-SA 3.0)
Photo by groupuscule via Wikimedia Commons (CC BY-SA 3.0)
Photo by groupuscule via Wikimedia Commons (CC BY-SA 3.0)

Photo by Beidel, H. Frank, 1857-1932 -- Photographer via Wikimedia Commons (Public domain)

Photo by Beidel, H. Frank, 1857-1932 -- Photographer via Wikimedia Commons (Public domain)
Background
The Maryland Metropolitan Transition Center (MTC), formerly known as the historic "Maryland Penitentiary", is a Maryland Department of Public Safety and Correctional Services pre-trial maximum security prison located in Baltimore facing Greenmount Avenue between Forrest Street and East Madison Street. It was established in 1811 as the first prison in the state and the second of its kind in the country and the original buildings faced towards East Madison Street above the east bank of the Jones Falls stream and adjacent to the old stone walls of the Baltimore City Jail (now renamed the Baltimore City Detention Center), earlier established in 1801, rebuilt in 1857â1859, and later in 1959â1965. Now known as the MTC, the prison still houses Maryland's now decommissioned death chamber. The Maryland Correctional Adjustment Center, across the road, housed male "death row" inmates until June 2010, when they were moved to the North Branch Correctional Institution near Cumberland in the western portion of the state in Allegany County.
Source: Wikipedia article lead, CC-BY-SA.
Capacity
—
Current population
—
Occupancy
—
Year opened
1811
Operational
Figures from official sources · verified 29 May 2026 · methodology
Facility profile
Population held
Mixed/unknown
Opened
1811
Region
MD
Security level
—
Death-row facility
No
Conditions
No conditions summary available yet.
Visiting
No visiting information available.
Mailing
No mailing information available.
Practical info
Contact the operator's website for inmate-specific procedures.
Known issues
No major issues documented in our database.
Contact & address
Conditions Risk Score
Derived signal — not a judgement. How it's calculated
Related facilities
Same country, matched on type + security level where possible.
- Rikers IslandEast Elmhurst, NYMixedLocal jail42% occupancy
- Franklin County Detention FacilitySt. AlbansMaximumCounty jail660% occupancy
- Gallia County JailGallipolisCounty jail336% occupancy
- Noble County JailCaldwellCounty jail542% occupancy
- Woodman State JailGatesvilleMaximumState prison720% occupancy
- Stark County JailToulonCounty jail3446% occupancy
Data completeness
38%How many of our profile fields are populated. We surface this so families and researchers know the limits.
Sources
- Wikipedia — Wikimedia Foundation
- OpenStreetMap — OpenStreetMap Contributors
- Wikidata — Wikimedia Foundation
- Wikidata (Q6825284)
- 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). Maryland Penitentiary. Retrieved October 27, 2026, from https://worldprisons.com/prisons/maryland-penitentiary
"Maryland Penitentiary." World Prisons. Accessed October 27, 2026. https://worldprisons.com/prisons/maryland-penitentiary.
@misc{worldprisons-maryland-penitentiary,
author = {{World Prisons}},
title = {Maryland Penitentiary},
year = {2026},
url = {https://worldprisons.com/prisons/maryland-penitentiary},
urldate = {2026-10-27}
}