• The Midlothian Independent School District has close partnerships with all area emergency first responders, including; the Midlothian Police Department, the Ovilla Police Department, the Midlothian Fire Department and emergency medical services, the Ellis County Sheriff's Department, and the Ellis County Office of Emergency Management. These first responders are coordinated with when MISD plans any major event. From graduation, parades, homecomings, athletic events and planning and training for all critical incidents.