Spatial Data Information

• Explore the Chicago Region Clearinghouse Cooperative website, a multi-organizational spatial data Clearinghouse for the greater Chicago Region.

• Download TIGER® line files for Illinois Counties. This is raw TIGER® (TL95) in its original format, you must import this into a mapping or GIS package to use it.

• The Chicago Region GIS & Data Catalog is a web-based effort that both conforms to metadata standards and promotes the centralized and orderly cataloguing of data in the larger Chicago metropolitan region. We hope this data catalog is user friendly and promotes the browsing of related data sets by selecting a general key word.