United States · MI · Ionia
Michigan Reformatory
Data is aggregated from public sources and may be incomplete or out of date.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 Michigan Reformatory
Step-by-step guidance using the United States system — addresses, money services, visit booking, what to bring on your first visit.
Michigan Reformatory is a state prison located in Ionia County, Michigan. Rated capacity: 1,337. Reported population: 1,193. Security level: Close. Data sourced from the HIFLD Prison Boundaries open dataset.
Capacity
1,388
Current population
1,193
Occupancy
86%
Year opened
2007
Closed 2022
Figures from official sources · verified 16 Jun 2026 · methodology
Facility profile
Population held
male
Opened
2007
Region
MI
Security level
Medium
Death-row facility
No
Conditions
The Michigan Reformatory is described as a less restrictive multi-level prison featuring nine 'close security' cellblocks. One unit contains 96 shabby cells arranged end to end. The facility experiences extreme heat, with one inmate noting that the floors sweat due to the temperature.
Visiting
No visiting information available.
Mailing
No mailing information available.
Practical info
Contact the operator's website for inmate-specific procedures.
Known issues
Inmates report extreme heat conditions, with one describing the floors sweating. The facility is characterized by shabby cells within close security units.
Contact & address
Conditions Risk Score
Derived signal — not a judgement. How it's calculated
- Overcrowding
- 0/30
- Oversight reports
- 1/30
- Structural flags
- 5/15
- Death signals
- 0/15
- Conditions text
- 0/10
What the score is responding to:
- · 1 oversight report in the last 5 years
- · Substantial documented known-issues record
This facility scores 6. The national average across 7,437 scored United States facilities is 2 — 4 points above national average.
Related facilities
Same country, matched on type + security level where possible.
- ASPC - YumaSan LuisMediumMedium Security150% occupancy
- Coffeewood Correctional CenterMitchellsMediumMedium Security84% occupancy
- Haynesville Correctional CenterHaynesvilleMediumMedium Security105% occupancy
- ASPC - PerryvilleGoodyearMediumMedium Security238% occupancy
- Nottoway Correctional CenterBurkevilleMediumMedium Security95% occupancy
- ASPC - LewisBuckeyeMediumMedium Security102% occupancy
Compared to other facilities in United States
7436 peersReports
- marshall-project15 Jul 2022
ait it out” and “Buy another fan, bro.” Tracy J. Lee for The Marshall Project After four long years at a supermax facility in Baraga County, Michigan , I am now housed at the Michigan Reformatory or RMI, a less restrictive multi-level prison in Ionia County. My unit, one of nine “close security” cellblocks at RMI, consists of 96 shabby cells lying end to end. When you look through the bars, you
Data completeness
84%How many of our profile fields are populated. We surface this so families and researchers know the limits.
Sources
- Michigan DOC — Facility Information
- HIFLD Prison Boundaries — US Department of Homeland Security â HIFLD Open Data
- Wikipedia category â Prisons in Michigan — Wikimedia Foundation
- OpenStreetMap — OpenStreetMap Contributors
- Michigan DOC — Facility Information — Michigan Department of Corrections
- Wikidata (Q28446754)
- 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). Michigan Reformatory. Retrieved October 20, 2026, from https://worldprisons.com/prisons/michigan-reformatory
"Michigan Reformatory." World Prisons. Accessed October 20, 2026. https://worldprisons.com/prisons/michigan-reformatory.
@misc{worldprisons-michigan-reformatory,
author = {{World Prisons}},
title = {Michigan Reformatory},
year = {2026},
url = {https://worldprisons.com/prisons/michigan-reformatory},
urldate = {2026-10-20}
}