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Federal Correctional Institution · Thomson, Illinois

FCI Thomson

Security level
Low + minimum camp
Population
2,118
Phone
815-259-1000

Last checked: November 3, 2026 (BOP documents for this prison) Intel last checked: November 3, 2026 BOP status updated: Nov 3, 2026, 9:20 pm ET News updated: Nov 3, 2026, 3:10 pm ET

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Thomson at a glance

Thomson is a low-security federal prison (FCI) for men, with a minimum-security satellite prison camp (SCP). It is at 1100 One Mile Road, Thomson, Illinois. Thomson has not posted an Admission and Orientation handbook or a commissary list on the BOP website, so this page has fewer details than most. Ask your loved one about mail, phone, health care, programs and commissary.

How many people
1,962 in the FCI and 156 at the camp (BOP, October 29, 2026).
Who is there
Men. On the first day of the 2025 audit, ages ran from 20 to 83. Click here to read the source: PREA audit report, FCI Thomson (onsite February 11 to 13, 2025) ↗
Built for
1,962 people. The audit counted 1,936 on the first day of the visit. Click here to read the source: PREA audit report, FCI Thomson (onsite February 11 to 13, 2025) ↗

The BOP's own page for FCI Thomson.