Old Mill Senior High School is located in Millersville, MD and is one of 25 high schools in Anne Arundel County Public Schools School District. It is a public school that serves 2266 students in grades 9-12. See Old Mill Senior High School's test results
to learn more about school performance.
In 2011, Old Mill Senior High School had 16 students for every full-time equivalent teacher. The Maryland average is 15 students per full-time equivalent teacher.