Welcome to the Northern Illinois University State Data Center Affiliate web site! This site provides access to Illinois data and if you can’t find it here, please feel free to contact us. The State Data Centers were created in 1978 to make data available locally to the public through a network of state agencies, universities, libraries, and regional or local governments.

The SDC lead agency is the Illinois Department of Commerce and Economic Opportunity and sister affiliate agencies are the Chicago Metropolitan Agency for Planning, the University of Illinois – Chicago campus Richard J. Daley Library, the University of Illinois – Chicago campus Urban Data Visualization Lab and Northern Illinois University - Center for Governmental Studies.