United States · Maine · Portland
Cumberland County Jail
Data is aggregated from public sources and may be incomplete or out of date.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 Cumberland County Jail
Step-by-step guidance using the United States system — addresses, money services, visit booking, what to bring on your first visit.
Cumberland County Jail is a county jail located in Cumberland County, Maine. Rated capacity: 500. Reported population: 340. Security level: Maximum. Data sourced from the HIFLD Prison Boundaries open dataset.
Background
The Cumberland County Jail is located in Portland, Maine, and is the largest jail in the state. The jail, a division of the Cumberland County Sheriff's Office, is a part of Cumberland County government and is wholly operated by the elected Sheriff. In 2002 it became the first jail in the state of Maine to receive national accreditation from the American Correctional Association, at the time putting it among only 4% of adult correctional facilities in the US to have been so accredited. It has the capacity to accommodate 600 inmates, and employs over 200 staff (including 130 Corrections Officers). Most inmates are serving short sentences or awaiting trial.
Source: Wikipedia article lead, CC-BY-SA.
Capacity
500
Current population
340
Occupancy
68%
Year opened
1994
Operational
Figures from official sources · verified 6 Jul 2026 · methodology
Facility profile
Population held
mixed
Opened
1994
Region
Maine
Security level
Maximum
Death-row facility
No
Conditions
conditions of confinement at the Cumberland (CRIPA), 42 U.S.C. § 1997. We thank Warden Smith and the Cumberland County Jail staff for accommodating our investigation and providing access to the Jail’s facilities, staff, documents, conditions that we have reasonable cause to believe violate the Constitution of the United States. unconstitutional conditions of confinement.
Visiting
No visiting information available.
Mailing
See id. § 1997b(a). This letter and the attached report serve to notify you of the supporting facts options for resolving this matter amicably.
Practical info
adequate measures to prevent inmate suicides and provide adequate mental health care. These screening to identify inmates at risk of self-harm or in need of mental health care for a serious mental health condition; and (3) provide sufficient mental health care to inmates with a clear working with the County to address the violations of law we have identified. The lawyers
Known issues
[doj-cripa 2021-01-01 — Cumberland County Jail (New Jersey)] County Jail (the “Jail”), conducted under the Civil Rights of Institutionalized Persons Act (CRIPA), 42 U.S.C. § 1997. We thank Warden Smith and the Cumberland County Jail staff for Consistent with CRIPA’s statutory requirements, we provide this written notice of the conditions that we have reasonable cause to believe violate the Constitution of the United States. unconstitutional conditions of confinement.
Documented human-rights cases
- Cumberland County Jail (New Jersey)2021-01-01 · Eighth Amendment / Fourteenth Amendment (US Constitution) â CRIPA · violation
Named subject of CRIPA investigation
Contact & address
Conditions Risk Score
Derived signal — not a judgement. How it's calculated
- Overcrowding
- 0/30
- Oversight reports
- 0/30
- Structural flags
- 5/15
- Death signals
- 0/15
- Conditions text
- 3/10
What the score is responding to:
- · Substantial documented known-issues record
- · Severe-conditions keyword in sources
This facility scores 8. The national average across 7,437 scored United States facilities is 2 — 6 points above national average.
Related facilities
Same country, matched on type + security level where possible.
- Beaufort County Detention CenterWashingtonMaximumCounty jail222% occupancy
- Abbeville County Detention CenterAbbevilleMaximumCounty jail200% occupancy
- Southwest Virginia Regional Jail - TazewellTazewellMaximumCounty jail330% occupancy
- Franklin County Detention FacilitySt. AlbansMaximumCounty jail660% occupancy
- Spartanburg County Main JailSpartanburgMaximumCounty jail152% occupancy
- Anderson County Detention CenterAndersonMaximumCounty jail183% occupancy
Compared to other facilities in United States
7436 peersData completeness
92%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
- List of immigrant detention sites in the United States — Wikipedia
- Cumberland County Jail
- Wikipedia — Wikimedia Foundation
- HIFLD Prison Boundaries — US Department of Homeland Security â HIFLD Open Data
- OpenStreetMap — OpenStreetMap Contributors
- Wikidata — Wikimedia Foundation
- List of immigrant detention sites in the United States — Wikipedia — Wikipedia / U.S. Immigration and Customs Enforcement (ICE)
- Wikidata (Q5193875)
- Wikipedia
- 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). Cumberland County Jail. Retrieved October 23, 2026, from https://worldprisons.com/prisons/cumberland-county-jail
"Cumberland County Jail." World Prisons. Accessed October 23, 2026. https://worldprisons.com/prisons/cumberland-county-jail.
@misc{worldprisons-cumberland-county-jail,
author = {{World Prisons}},
title = {Cumberland County Jail},
year = {2026},
url = {https://worldprisons.com/prisons/cumberland-county-jail},
urldate = {2026-10-23}
}