Established in 1949 by the consolidation of 12 rural school districts, Northside today is 355 square miles of urban landscape, suburban communities, and rural Texas hill country. As South Texas’ largest school system, Northside is the “Destination District” for thousands of families wanting a high-quality school system. The Northside ISD Police Department operates 24-hours a day and is dedicated to the safety and welfare of all students, faculty, staff and visitors of the District and the protection of District property.