Simple view of Waukesha County tax parcels, simultaneous conveyances, civil divisions, rights of way, historic tax parcels (back to around mid-2000s), and annexations for display and download. Parcel Currency: 10/01/25Tax and Ownership data as exported from Waukesha County Tax Listing 11/02/2025. Cities of Brookfield and Waukesha dates may vary depending on submission dates to the County.For a full parcel dataset, including all data layers and annotation, download the complete file geodatabase here.

Waukesha County Public Land Survey System PLSS

This map shows lakes, rivers, and streams for Waukesha County as acquired from year 2000 aerial photography. Also available for display are WI DNR hydro layers as well as some Waukesha County Land Resource layers.

Nursing Homes from the State of Wisconsin database of long-term health care facilities

Waukesha County Floodplain and FEMA Data Layers

This data set was collected to provide wetland information for use in county, city, village, and town planning activities in the respective counties and for regional planning activities in Southeastern Wisconsin. This was clipped from a data set that consists of digital map files containing point and polygon features of wetland information covering Kenosha, Milwaukee, Ozaukee, Racine, Walworth, Washington, and Waukesha Counties. The files were compiled by the Southeastern Wisconsin Regional Planning Commission on behalf of the Wisconsin Department of Natural Resources as part of a cooperative agreement to update the Wisconsin Wetland Inventory in Southeastern Wisconsin. Each file covers one U.S. Public Land Survey System survey township, for a total of 82 files in the data set. The survey township files have also been merged into files covering entire counties. The digital map files were compiled with reference to one-inch-equals-100-feet-scale and one-inch-equals-200-feet-scale orthophotography acquired in the Spring of 2010, and also with reference to land use, vegetation, topographic, and soils information.

****Converted to NAD83(2011) by SEWRPC and ProWest & Associates Inc in January of 2019.This data set consists of 6-inch, natural color orthoimages covering the urban area footprint. An orthoimage is remotely sensed image data in which displacement of features in the image caused by terrain relief and sensor orientation have been mathematically removed. Orthoimagery combines the image characteristics of a photograph with the geometric qualities of a map.For the 6-inch GSD Ortho image, horizontal positional accuracy was designed not to exceed 3.80 feet NSSDA at the 95% confidence level.This dataset consists of uncompressed, ortho photo tiles formatted as 8-bit, 3-band (RGB), uncompressed, GeoTIFF images with TIF world files. Multi-spectral digital orthophotography was produced at a scale of 1:1200 (1" = 100') with a 6-inch pixel resolution over. The project area includes a 1,000-foot buffer extension beyond the county boundaries. Wisconsin State Plane Coordinate System grid, South Zone, NAD 1927.The MrSID files are color GeoTIFF files merged into compressed files covering larger areas. Each MrSID file for Ozaukee, Racine, Walworth, Washington, and Waukesha Counties covers approximately one U.S. Public Land Survey System survey township (about 36 square miles)This data depicts geographic features on the surface of the earth. This data set was collected to provide an inventory of orthophoto images in the Southeastern Wisconsin Region and to be used for broad regional planning purposes. It was created to provide easily accessible geospatial data which is readily available to enhance the capability of Federal, State, and local emergency responders, as well as plan for homeland security efforts. This data also supports the National Map.

In 2012 a joint project was started by the Milwaukee Metropolitan Sewerage District (MMSD) and University of Wisconsin –Milwaukee (UWM) to support MMSD’s Integrated Regional Stormwater Management Program. Digital copies of scans of various historical map sources were collected and georeferenced to Wisconsin State Plane Coordinate Systems (NAD 1927 and NAD 1983). Historical streams and water features in the Milwaukee area were mapped to a geographic information system (GIS). Water features were identified and digitized from the scanned source maps. These features included:Stream lines River lines Lake Michigan Shoreline Pond boundaries Lake boundaries Swamp or marsh boundaries Spring locations An Esri ArcGIS geodatabase was created to house the digitized features and associated attributes as delineated in the scanned source maps. Geographic coverage area: Milwaukee County; Portions of Waukesha, Ozaukee, and Washington CountySource map used for this data:Board of Commissioners of Public Lands and the University of Wisconsin Board of Regents, 1835-37, Wisconsin Public Land Survey Records Original Field Notes and Plat Maps, available at https://digicoll.library.wisc.edu/SurveyNotes/SurveyNotesHome.html.