November 20th is G.I.S. Day
GIS (Geographic Information Systems) technology allows for the visualization and understanding of geographic data as it relates to the operations of County agencies. Understanding this data allows Cook County to observe what is going on, measure an event or impact, analyze disparate data, develop plans and ultimately, help County agencies decide on a course of action as it relates to geographic locations.
The Department of GIS provides geographic maps, applications and data to County agencies as well as makes GIS data and maps available to the public via web application.