Morrison High School, or MHS, is a public four-year high school located at 643 Genesee Avenue in Morrison, Illinois, a small city of Whiteside County, Illinois, in the Midwestern United States. MHS is part of Morrison Community Unit School District 6, which serves the community of Morrison, and includes Morrison Junior High School, and Northside Elementary School, and Southside Elementary School. The campus is 13 miles west of Sterling, Illinois.