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The Ismay Jail is a National Registered Historic Place located in Ismay, Montana. It was added to the Register on June 4, 1997. It is a small jail which was built in 1909. It is built of red brick on a concrete slab, and it has a barrel form concrete roof. Its false front rises to 12 feet 8 inches; it has a 20 feet (6.1 m) by 12 feet (3.7 m) plan.
Source: Wikipedia article lead, CC-BY-SA.
Capacity
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Operational
Figures from official sources · verified 22 May 2026 · methodology
Operator
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Population held
Mixed/unknown
Opened
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Death-row facility
No
No conditions summary available yet.
No visiting information available.
No mailing information available.
Contact the operator's website for inmate-specific procedures.
No major issues documented in our database.
No public contact details available.
Derived signal — not a judgement. How it's calculated
Same country, matched on type + security level where possible.
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). Ismay Jail. Retrieved July 21, 2026, from https://worldprisons.com/prisons/ismay-jail
"Ismay Jail." World Prisons. Accessed July 21, 2026. https://worldprisons.com/prisons/ismay-jail.
@misc{worldprisons-ismay-jail,
author = {{World Prisons}},
title = {Ismay Jail},
year = {2026},
url = {https://worldprisons.com/prisons/ismay-jail},
urldate = {2026-07-21}
}