World Prisons
All prisons

United States · Illinois · Marion

USP Marion

FederalMediummaleLowMedium
Verified 28 May 2026 · Data dated 1 Dec 2025
Fresh · 1d ago

Data is aggregated from public sources and may be incomplete or out of date.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 USP Marion

Step-by-step guidance using the United States system — addresses, money services, visit booking, what to bring on your first visit.

Open toolkit
Photograph of USP Marion

Built to replace Alcatraz. Operated under permanent lockdown 1983-2006 — origin of the modern US supermax regime.

Background

The Federal Correctional Institution, Marion (FCI Marion) is a large medium-security United States federal prison for male inmates in Southern Precinct, unincorporated Williamson County, Illinois. It is operated by the Federal Bureau of Prisons, a division of the United States Department of Justice. The facility also has an adjacent satellite prison camp that houses minimum security male offenders. FCI Marion in Southern Illinois is approximately 9 miles (14 km) south of the city of Marion, Illinois, 300 miles (480 km) south of Chicago, and 120 miles (190 km) southeast of St. Louis, Missouri.

Source: Wikipedia article lead, CC-BY-SA.

Capacity

1,100

Current population

Occupancy

Year opened

1963

Operational

Facility profile

Operator

Federal Bureau of Prisons

Population held

male

Opened

1963

Region

Illinois

Security level

Medium

Death-row facility

No

Conditions

BOP-operated facility; conditions reports issued by the DOJ Office of Inspector General on a multi-year cycle.

Visiting

Visiting governed by BOP Program Statement 5267.09 — approved-visitor list maintained by the inmate's Unit Team. Weekends and federal holidays in most facilities; specific hours per facility.

Mailing

Standard BOP format: Inmate Name & Register Number, [Facility], [Address]. No staples, polaroids, or hardcover books. Sender's full return address required.

Practical info

Federal inmate funds via Western Union QuickCollect to the BOP Trust Fund. Communication via CorrLinks (TRULINCS) where the inmate has subscribed.

Known issues

Notable inmates

John Gotti (deceased 2002), Pete Rose (briefly), Robert Hanssen (transferred 2002).

Contact & address

Conditions Risk Score

Derived signal — not a judgement. How it's calculated

5/100
Low concern5/100
Overcrowding
0/30
Oversight reports
0/30
Structural flags
0/15
Death signals
5/15
Conditions text
0/10

What the score is responding to:

  • · In-custody-death signal in sources

Compared to other facilities in United States

3134 peers
Conditions risk scorethis: 5/100 · peers avg: 3/100 (+64%)

Higher risk than 79% of peer facilities in United States.

Capacity (beds)this: 1100 · peers avg: 1580 (30%)

Data completeness

94%

How many of our profile fields are populated. We surface this so families and researchers know the limits.

Sources