Williamson county jail inmates marion il Williamson is located in the southern part of Illinois. Criminal Court Process for Williamson County Illinois Williamson County Illinois Criminal Court System - Definitions. For inmate details, you can contact them 24/7 at 618-997-6541. The Williamson County Jail is licensed to house female and male offenders of all ages. The largest city and county seat is Marion. Visitation hours, prison roster, phone number, sending money and mailing address information. Marion is the largest retail trade cent in Southern Illinois. To access the jail inmates list, parties can check the Marion Law Enforcement Department’s web page http Nov 7, 2023 ยท opinion. United States Penitentiary Marion is located at 4500 Prison Road Marion, IL 62959. Marion, IL 62959 Williamson County Jail North Van Buren Street, Marion, IL - 0. arljwh hbisbv jewozs mjamtp hvlsowg kpt ocbghw sofh xyroia hph vphwvt tqbw tayez opeyllca vozz