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United States · IA · Fort Madison

Iowa State Penitentiary

Low
Verified 28 May 2026
Fresh · 2d ago

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Background

The Iowa State Penitentiary (ISP) is an Iowa Department of Corrections maximum security prison for men located in the Lee County, Iowa, community of Fort Madison. This facility should not be confused with the Historical Iowa State Penitentiary, which was shut down in 2015 after being open for 175 years. The HISP itself was a 550-person maximum security unit. Also on the complex was a John Bennett Correctional Center - a 169-person medium security unit. The HISP included two minimum-security farms with about 170 people who were located within a few miles of the main complex.

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

Capacity

Current population

Occupancy

Year opened

1836

Operational

Facility profile

Operator

Iowa Department of Corrections

Population held

Mixed/unknown

Opened

1836

Region

IA

Security level

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

2111 330th Avenue, Fort Madison 52627

Conditions Risk Score

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

Insufficient data
We don't have enough public data on this facility to score it. Have something to add? Send us a correction.

Data completeness

38%

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

Sources