Medium security (men) · State Prison · Illinois DOC

Big Muddy River Correctional Center

Ina, Jefferson County, Illinois

Visiting schedules change without notice. Always call before traveling.

Call Visiting Office: (618) 437-5300 Info last verified: June 2026

A medium-security state prison for men in Ina, in southern Illinois, with sex-offender treatment programming.

Overview

Big Muddy River Correctional Center, in Ina in Jefferson County, southern Illinois, is a medium-security state prison for men, with a population of around 1,500. The facility runs sex-offender treatment programming, along with academic and vocational courses, substance-abuse treatment, and other reentry programs.

What Makes Big Muddy River Different

  • It is a medium-security men’s prison in southern Illinois, off Interstate 57 near Mount Vernon.
  • It provides sex-offender treatment programming, including a sex-offender treatment program and a treatment program for persons committed as sexually dangerous.
  • It offers academic and vocational programs, including adult basic education and GED, vocational training, and substance-abuse treatment.
  • The facility shown in the locator can change if the person is transferred, so confirm it before traveling.

Visiting

The statewide IDOC rules above — the approved visitor list, the dress code, ID, and item limits — apply at Big Muddy River Correctional Center. The facility’s own arrangements:

The full visitor process is in Visiting in Illinois.

Getting There and Parking

The facility is in Ina in southern Illinois, off Interstate 57 near Mount Vernon.

Distances are approximate, based on map routing. Visitor parking is on site.

Nearby Services

The Mount Vernon area, just north along Interstate 57, has gas, food, and lodging, with more along the interstate corridor. The nearest 24-hour emergency rooms are in the Mount Vernon area.

Mail

Illinois changed how it handles incoming personal mail in 2025, and the change became permanent in January 2026. Personal letters and photos sent to the facility are opened and scanned, and the incarcerated person receives a digital copy on their ICSolutions tablet (a free printed copy is available on request) rather than the original. Address mail with the person’s name and IDOC number, and confirm the current mailing address and format with IDOC and this facility before sending, since the program is recent. Legal mail is handled separately under privileged-mail rules, and publications (books, magazines) must come directly from a publisher, book club, or bookstore. Full rules are in Mail & Packages.

Learn More

For detailed information about visiting and communicating with someone in an Illinois state prison:

Sources

This page is compiled from the following publicly available sources. Policies change without notice — confirm current details with the facility before relying on them.