The WIREdata case and its implications for Wisconsin geospatial data

August 1, 2017

On June 25, 2008, the Wisconsin Supreme Court issued an opinion in WIREdata Inc. v. Village of Sussex (2008 WI 69), after nearly seven years of litigation between WIREdata, Inc. and the villages of Sussex and Thiensville, and the city of Port Washington. The litigation touches on Wisconsin state public records law and its application to electronic databases. This publication summarizes the WIREdata case, and highlights the potential impact of the decision on access to geospatial data maintained by government agencies.


GeoData@Wisconsin an online geoportal for fast and free access to Wisconsin geospatial data.  The geoportal combines a map-based spatial search with traditional keyword searching and faceted browsing options to locate and download geospatial data.  GeoData@WI was developed and is maintained by the Robinson Map Library and the Wisconsin State Cartographer’s Office at the University of Wisconsin-Madison.

State Boundary Data

July 13, 2017

There are various sources for Wisconsin state boundary data, but quality levels can be quite variable. In addition, most state boundary representations are generalized and will not necessarily match other features, such as hydrography, at the very largest map scales.