Old Mill High School Ann Arundel County Public Schools 600 Patriot Lane Millersville, MD 21108 View map location Phone:  410-969-9010 Fax:  410-969-1620 Head of School:  George Kispert Public School, Grades 9-12 School Enrollment:  2,603 IB Students:  IB Coordinator:  Elizabeth Mitchell E-mail:  epmitchell@aacps.org Web Site:  Old Mill High School IB Courses Offered Start