Warren High School, or WHS, is a public four-year high school located at 311 South Water Street in Warren, Illinois, a village in Jo Daviess County, Illinois, in the Midwestern United States.

WHS serves the communities and surrounding areas of Warren, Apple River, and Nora.

[2][3] The campus is located 38 miles east of Dubuque, Iowa, and serves a mixed village and rural residential community.

2019-20 Football State Championship in Division 7 in Wisconsin-Coop with South Wayne Wisconsin.

Surrounding communities may have possessed high schools at some time which were consolidated into the current RRHS.