Bureau of Technology Headquarters
69 West Washington Street
Suite 2700
Chicago, IL 60602
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Cook Central

From property and boundary data, to transportation, social service, and environmental data, Cook County owns and manages a huge amount of geospatial data. Cook Central is the public portal for Geographic Information Systems showcasing open spatial data, interactive mapping applications and an application programming interface for community members to pioneer unique, innovative applications with Cook County’s authoritative data.