United States · Connecticut · Somers
Northern Correctional Institution
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Northern Correctional Institution is a state prison located in Tolland County, Connecticut. Reported population: 274. Security level: Maximum. Data sourced from the HIFLD Prison Boundaries open dataset.
Background
Northern Correctional Institution (NCI) was a high-security state prison in Somers, in the northern part of the U.S. state of Connecticut. Until its closure, the prison housed the state's male convicts serving long sentences for violent crimes; previously, it had also housed the death row for inmates before the abolition of the death penalty in Connecticut. It was the designated restrictive housing facility for the Connecticut Department of Correction, managing those inmates who had demonstrated a serious inability to adjust to confinement, particularly those that posed a threat to the safety and security of the community, staff, and other inmates. The institution Group Safety Threat Member program was relocated from the Garner Correctional Institution in order to centralize restrictive housing functions. In response to this, and with a commensurate increase in the number of young offenders, the facility more than doubled the size of its educational staff in order to serve those inmates who fell under federal mandates and require special education.
Source: Wikipedia article lead, CC-BY-SA.
Capacity
—
Current population
274
Occupancy
—
Year opened
1995
Operational
Figures from official sources · verified 2 Jun 2026 · methodology
Facility profile
Population held
Mixed/unknown
Opened
1995
Region
Connecticut
Security level
Maximum
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.
- Woodman State JailGatesvilleMaximumState prison720% occupancy
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- Kern Valley State Prison (Kvsp)DelanoMaximumState prison152% occupancy
- Diagnostic And Evaluation CenterLincolnMaximumState prison178% occupancy
- High Desert State Prison (Hdsp)SusanvilleMaximumState prison152% occupancy
- Calipatria State Prison (Cal)CalipatriaMaximumState prison161% occupancy
Data completeness
68%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
- OpenStreetMap — OpenStreetMap Contributors
- Wikidata — Wikimedia Foundation
- Wikidata (Q7058264)
- 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). Northern Correctional Institution. Retrieved October 20, 2026, from https://worldprisons.com/prisons/northern-correctional-institution
"Northern Correctional Institution." World Prisons. Accessed October 20, 2026. https://worldprisons.com/prisons/northern-correctional-institution.
@misc{worldprisons-northern-correctional-insti,
author = {{World Prisons}},
title = {Northern Correctional Institution},
year = {2026},
url = {https://worldprisons.com/prisons/northern-correctional-institution},
urldate = {2026-10-20}
}