River Ridge High School, or RRHS, is a public four-year high school located at 4141 Illinois Route 84 South near Hanover, Illinois, a village in Jo Daviess County, Illinois, in the Midwestern United States. RRHS, a part of River Ridge Community Unit School District 210, serves the communities and surrounding areas of Elizabeth and Hanover. The campus is located 27 miles southeast of Dubuque, Iowa, and serves a mixed village and rural residential community.