Available Data
Aerial Imagery
Will County has aerial imagery for the following years.(link)
1961, 1997, 2004, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2017
Topographic data
Will County has topographic data (contour, elevation, & LiDAR) for the following years.(link)
2014, 2007
Vector Data
Base Map Layers
Municipalities (County Clerk, April 2017)
Address Points (updated weekly)
Parcels (SoA, July 2017)
Streets (updated weekly)
Building Footprints (July 2016)
Railroads (July 2016)
Forest Preserves (FPDWC)
Trails (FPDWC)
Zoning (Unincorporated) (August 2017)
*The Public Land Survey System (PLSS) is used as a frame of reference to describe property boundaries in Illinois.
Hydrology
Hydropolys (July 2016)
Political Boundaries
State House of Representatives