Rock Valley College is a public community college in Rockford, Illinois. It is part of the Illinois Community College System. RVC's district comprises Winnebago County, Boone County, and parts of Stephenson County, Ogle County, McHenry County, and DeKalb County. Since opening for classes in 1965, RVC has grown to an institution of 140 faculty members, 50…Rock Valley College is a public community college in Rockford, Illinois. It is part of the Illinois Community College System. RVC's district comprises Winnebago County, Boone County, and parts of Stephenson County, Ogle County, McHenry County, and DeKalb County. Since opening for classes in 1965, RVC has grown to an institution of 140 faculty members, 500 part-time lecturers, and more than 7700 students.