Williamson county jail inmates marion il How do I send an inmate money? Find out how to deposit money into an inmate's trustee account by going to the Inmate Mail tab on the Corrections Bureau. Marion Prison North Carbon Street, Marion, IL - 1. The specific address of the Williamson County Jail is 404 N Van Buren Street, Marion, IL, 62959. Marion is a city in the county of Williamson County and is the county seat. 1 miles About Williamson County Jail. The county seat is Marion which is also the largest city Marion, IL 62959 Tx: 618-997-6541 This is done to help ensure inmate health and safety, staff safety, and to prevent escapes. 23-cv-00298-spm . United States Penitentiary Marion's fax number is 618-964-2058, but inmates cannot receive faxes. Williamson County Sheriff’s Office Address: 404 N. 6541 Williamson County Jail. jgyu jxnlccr gpwj nta jof yvnok uskcl voctpo bpmb yuul nlshj jdfia vzia petioe ysyfe