High Schools 0 International High School @ Largo Posted by adminPosted 6 years ago June 5, 2018 Basic Info International High School @ Largo is located at 505 Largo Road, Largo, MD 20774. The principal is Alison Hanks-Sloan. International High School @ Largo 0 Inclusiveness 0.0/10 Staffing and resources 0.0/10 Cooperation 0.0/10 Communication 0.0/10 Academic expectations 0.0/10 School Info School Website