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gis maps and datasets

National Resources

Explore our list of freely available nationwide GIS maps and datasets.

ESRI Open Data Hub

https://hub.arcgis.com/search

USGS Earth Explorer

https://earthexplorer.usgs.gov/

United States Census Bureau

https://www.census.gov/programs-surveys/geography.html

United States Department of Agriculture

https://datagateway.nrcs.usda.gov/GDGOrder.aspx

NASA - Socioeconomic Data and Applications Center (SEDAC)

https://sedac.ciesin.columbia.edu/data/sets/browse

The National Map

https://www.usgs.gov/the-national-map-data-delivery

Statewide Resources

Explore our list of freely available statewide GIS maps and datasets.

Illinois Geospatial Data Clearinghouse

https://clearinghouse.isgs.illinois.edu/

Chicago Police Department CLEARMap

https://gis.chicagopolice.org/

Cook County Data

https://hub-cookcountyil.opendata.arcgis.com/

Cook County Map Viewer

https://maps.cookcountyil.gov/cookviewer/mapviewer.html

DuPage County Data

https://www.dupageco.org/gis/

DuPage County Map Viewer

https://maps.cookcountyil.gov/cookviewer/mapviewer.html

Kane County GIS

https://www.countyofkane.org/Pages/Maps.aspx

Kendall County GIS

https://maps.co.kendall.il.us/portal/home/

Lake County GIS

https://maps.lakecountyil.gov/mapsonline/

McHenry County GIS

https://www.mchenrycountyil.gov/county-government/departments-a-i/geographic-information-system-gis/interactive-maps

Will County GIS

https://www.willcountyillinois.com/County-Offices/Administration/GIS-Division

Winnebago, Boone and Stephenson Counties Map Viewer

https://agis.wingis.org/

Do you know a source for free GIS data? Please let us know!

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