Great Mills High School is located in Great Mills, MD and is one of 5 high schools in St. Mary's County Public Schools St. School District. It is a public school that serves 1654 students in grades 9-12. See Great Mills High School's test results
to learn more about school performance.
In 2011, Great Mills High School had 19 students for every full-time equivalent teacher. The Maryland average is 15 students per full-time equivalent teacher.