July 13, 2017
GIS parcel data in Wisconsin is created and maintained at both the municipal and county levels. For the majority of Wisconsin counties, parcel data is regularly aggregated from municipal to county-wide datasets if the parcels are not originally created by the county. Some exceptions to this include the Cities of Eau Claire, Beloit, Antigo, and Janesville, where parcel data remains available only at the municipal level. There are also areas of the state that are not yet digitally parcel mapped.