Williamson County Sheriff's Office

The Facility

Williamson County Sheriff's Office
404 N. Van Buren
Marion, IL  62959
Tx:  618-997-6541
Office Fax:  618-998-2296
Dispatch Fax:  618-997-1301



Jeff Diederich, Sheriff

Sheriff Jeff Diederich


The Williamson County Jail is operated by Jail Administrator Todd Hunter , along with a very professional and highly trained staff.  All Correctional staff undergo the State of Illinois Training Board Certified 200 Hour Academy.  Williamson County Correctional Officers are responsible for preserving order inside the Jail by enforcing the facility's Rules and Regulations and conducting shakedowns (the process of searching for contraband).  This is done to help ensure inmate health and safety, staff safety, and to prevent escapes.

Williamson County Sheriff's Office

 In January 2007, Williamson County began the long process of building a new Jail and Sheriff's Office.  On February 19, 2012 the new Williamson County Jail and Sheriff's Office officially opened the new state of the art 244 bed facility.  The facilities are self-sufficient operations consisting of housing, food service and laundry facilities that maintain a high level of service on a daily basis.

Williamson County Sheriff's Office