Jefferson County Inmate Population

Jefferson County inmate population records are handled by the Jefferson County Sheriff's Office in Mt. Vernon, Illinois. The county sits in southern Illinois and serves as a regional hub for courts and law enforcement in the area. If you need to find someone in the Jefferson County Jail or look up records tied to a local arrest, this page explains how. You will find details on searching the jail roster, filing records requests, and using state tools that track Jefferson County inmate population data through the corrections system.

Jefferson County Inmate Roster Search

The Jefferson County Sheriff's Office is based at 107 South 7th Street in Mt. Vernon, IL 62864. You can call them at (618) 244-8004 to ask about someone in custody. The staff can tell you if a person is being held, what their charges are, and what their bond is set at. The jail holds pre-trial detainees and people serving sentences under one year.

Jefferson County may publish its jail roster through the sheriff's website or a third-party platform. Some southern Illinois counties use services that post daily booking lists online. If the Jefferson County roster is not available on the web, calling the sheriff's office is the fastest way to get current information. They handle these calls regularly and can check for you in just a few minutes. Always have the person's full name ready when you call.

For people who have been moved from the Jefferson County Jail to an Illinois state prison, the IDOC inmate search tool is what you need. It covers every state facility and lets you search by name, IDOC number, or date of birth. The tool is free.

Jefferson County Jail Details

The Jefferson County Jail in Mt. Vernon houses inmates from across the county. As a mid-sized facility in southern Illinois, it processes a steady stream of bookings from local law enforcement agencies including the Mt. Vernon Police Department and Illinois State Police. Anyone convicted and sentenced to more than one year gets transferred out of the county jail and into the Illinois Department of Corrections system. The state runs multiple facilities in the southern part of the state, so Jefferson County inmates could end up at places like Big Muddy River Correctional Center in Ina or other nearby prisons.

Visitation rules at the Jefferson County Jail require you to call ahead and confirm the schedule. Bring a valid photo ID. Most county jails in Illinois limit visits to specific days and times, and Jefferson County follows a similar pattern. You may need to be on an approved visitor list before you can see someone. Contact the jail at (618) 244-8004 for the current visitation schedule and any rules you need to follow.

Illinois State Inmate Resources

When a Jefferson County inmate gets sent to state prison, the Illinois Department of Corrections takes over all records. The IDOC runs roughly 28 adult correctional facilities across the state. Their online inmate search shows where someone is housed, their projected release date, and conviction details. It is the best resource for tracking anyone who left the Jefferson County Jail for the state system.

The IDOC homepage shown above gives you access to all the major tools. You can run inmate searches, submit FOIA requests, and find contact information for specific prisons. Jefferson County residents who end up at a state facility will appear in this system once they are processed through a reception center. The Northern Reception and Classification Center in Joliet handles most new admissions from across the state.

Jefferson County Inmate Population Records

Booking records, charge sheets, bond amounts, and release dates from the Jefferson County Jail are public information. You do not need to explain why you want them. The Illinois Freedom of Information Act at 5 ILCS 140 gives everyone the right to request records from public agencies. Write to the Jefferson County Sheriff's Office at 107 South 7th Street, Mt. Vernon, IL 62864. Be clear about what records you need and include any names or dates you know.

The office has five business days to respond. The first 50 pages are free. After that, they charge the actual cost of copies. Vague or overly broad requests tend to slow the process down. If you know the inmate's name and approximate booking date, that helps the staff find what you need faster.

Certain records remain sealed. Under 730 ILCS 5/3-5-1, master record files are confidential. That means medical records, psychological evaluations, and internal disciplinary reports require a court order to access. This applies to inmates in the Jefferson County Jail and in the state prison system alike. Basic booking data and charges, however, are always accessible to the public.

Note: FOIA requests for state-level records should go to the IDOC FOIA officer at (217) 558-2200 ext. 4166, not the county.

Jefferson County Court Resources

Jefferson County is part of the 2nd Judicial Circuit. The circuit clerk's office at the Jefferson County Courthouse in Mt. Vernon handles court records including criminal case files, hearing schedules, and dispositions. If you are trying to track an inmate's case status, the clerk's office is the right place to call. Court records can show you the charges, plea entered, and sentencing details for someone who went through the Jefferson County court system.

Under 5 ILCS 140/2.15, arrest reports in Illinois must include the person's name, age, and charges. That means basic arrest data from Jefferson County is always public. The Uniform Conviction Information Act at 20 ILCS 2635 covers what can be released when someone asks specifically for conviction records. Only conviction data gets released through that process, not pending charges or arrests that did not lead to a conviction.

The Illinois Prisoner Review Board handles parole and clemency hearings for state inmates. If a Jefferson County resident is up for parole review, victims can track hearing dates through the PRB. The victims hotline is 1-800-801-9110. You can also sign up through VINELink for automatic alerts when an inmate's custody status changes.

Filing FOIA in Jefferson County

A good FOIA request to the Jefferson County Sheriff's Office starts with a clear statement that you are requesting records under the Freedom of Information Act. Then list exactly what you need. Common requests include daily jail rosters, booking logs, and inmate population counts for a specific date. If you are after records for one person, include their full name and date of birth.

The IDOC also has its own FOIA process. You can find instructions on the IDOC FOIA page. That process covers state prison records only. For anything related to the Jefferson County Jail specifically, the local sheriff's office is the correct contact. Response times at the county level follow the same five business day rule as the state.

Nearby Counties

Jefferson County is in southern Illinois and borders several other counties. If you are not sure which county handled an arrest, check the location where the incident took place. Each county in Illinois runs its own jail and inmate records system.