Jefferson County Mapping / GIS

Jefferson County Mapping/GIS is operated through Planning and Development Land Information. The Land Records Online page is the official public entry for land, geographic, and assessment information. The free Public GIS Viewer (Experience Builder on gis.jeffersoncountywi.gov) provides interactive parcel and land layers; JCLRS at apps.jeffersoncountywi.gov provides free parcel search by address or parcel number. ArcGIS REST map and feature services, including Public/Property_Ownership, are published at jeffarcgis.jeffersoncountywi.gov. Maps are for illustration and are not a substitute for a registered survey or Register of Deeds records.