WSIU Public Radio is a radio station broadcasting a news/talk/information and classical music format. Licensed to Carbondale, Illinois, the station serves Southern Illinois. The station is currently owned by Southern Illinois University Carbondale and features programming from American Public Media, National Public Radio, and Public Radio International. WSIU's programming is also heard on WUSI 90.3 FM in Olney, Illinois and WVSI 88.9 FM in Mount Vernon, Illinois.