University of Wisconsin–Madison

Find GIS Data

We recommend starting your search with GeoData@Wisconsin, the state’s most comprehensive catalog of geospatial data produced by local, state, and regional governments.  Cooperatively maintained by the State Cartographer’s Office and Robinson Map Library, GeoData@WI is an online geoportal that provides discovery and access to Wisconsin geospatial data, imagery, and scanned maps. All data referenced in GeoData@WI are available to download for free.

In addition to searching the GeoData@WI catalog, below you will find some “tips and tricks” for locating a variety of commonly-requested datasets.

Last updated: January 2, 2020