WCSJ-FM is a radio station based in Morris, Illinois. As of 2010, the station is owned and operated by Nelson Multimedia Inc. WCSJ's studios are located on Washington Street in downtown Morris with the FM transmitter located between Morris and Coal City. WCSJ's current sister station is WJDK-FM (95.7) with studios in the same building and a transmitter located between Kinsman and Seneca, Illinois. WCSJ and WJDK are the only locally broadcasting stations in Grundy County. WCSJ-FM's programming includes local news, high school sports, a weekly fishing and outdoor program, and NASCAR racing.