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More than 250 data sets of GIS and geospatial data are available on Chicago’s Data Portal where they are organized under the Topic "gis": http://data.cityofchicago.org/browse?tags=gis. GIS Liability Statement and Disclaimer: The data provided is a public resource of general information.
ArcGIS - The City of Chicago, Illinois. Details Edit Basemap Analysis. Directions Measure Bookmarks. The City of Chicago, Illinois. This map features a detailed basemap down to 1:1000 scale for Chicago, IL. Web Map by esri_db_services. Last Modified: April 11, 2011. (0 ratings, 0 comments, 10,445 views) More Details...
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City boundary of Chicago. The data can be viewed on the Chicago Data Portal with a web browser. However, to view or use the files outside of a web browser, you will need to use compression software and special GIS software, such as ESRI ArcGIS (shapefile) or Google Earth (KML or KMZ).
Current community area boundaries in Chicago. The data can be viewed on the Chicago Data Portal with a web browser. However, to view or use the files outside of a web browser, you will need to use compression software and special GIS software, such as ESRI ArcGIS (shapefile) or Google Earth (KML or KMZ), is required.
The City of Chicago, Illinois: description: The map features a detailed basemap down to 1:1000 scale for Chicago, Illinois including buildings, landmarks, neighborhoods, parcels, vegetation and parks with coverage down to 1:1000. The map is based on data from Chicago, Illinois.
The Maps and Plats Kiosk provides access to city aerial maps, 80-Acre (lots) maps, and structure basemaps that show existing building footprints and an address for each building. Click on the link below to access the maps. GIS Map Viewer with 80-Acre Maps; House Number Certification
