Geographic Information Services (GIS), a division of the Information Technology Department, is an internal services agency which supports a wide variety of departments in their daily operations by creating, maintaining, analyzing, and providing access to location-based data. GIS compiles data from various sources including plans, ordinances and field research into a centralized database for easy access.
The GIS division also provides analytical services to departments to aid in their decision making processes with geographic intelligence. Departments in turn utilize GIS as a means to track and share their information.
Additionally, the GIS division provides public access to information through interactive webmaps which contain many layers of data including utility lines, school district boundaries, emergency response districts, garbage collection routes etc.
You can find a listing of maps available for download here.