Northside Independent School District is the 4th largest school district in Texas and the largest in Bexar County. More than 100 schools and facilities spanning 12,172,963 square feet and 12,597 employees serve 88,400 students. The District covers most of northwest San Antonio and Bexar County and extends into the southern region of Bandera County and northern region of Medina County.

The Northside Police Department's jurisdiction includes all the geographical territory within the boundaries of the District's 355 square miles, as well as on any property outside the District that is owned, leased or otherwise under the control of the Board of Trustees.