The Black and White Parcel Basemap provides a consumer representation of parcel information that can be used without the aerial photo. The layers in the map provide context for multiple workflows, such as editing data or producing web maps and include roads, major facilities and landmarks, water features, parcels, and boundaries. It is compiled from mapping activities performed in Waukesha County as well as the Cities of Brookfield, Muskego, New Berlin, and Waukesha. Parcel discrepancies from the four municipalities should be directed to City staff for correction.

This application is intended for users who need a lot of information about a parcel or area in Waukesha County. It is heavily focused on land use, zoning, and property ownership. Check the Metadata button for more information on each individual layer. For information on the website tools or troubleshooting, choose one of the topics on the Help ribbon to the right. For specific property assessment information, please contact the local municipality that covers your area of interest.

The Color Parcel Basemap provides a consumer representation of parcel information that can be used without the aerial photo. The layers in the map provide context for multiple workflows, such as editing data or producing web maps and include roads, major facilities and landmarks, water features, parcels, and boundaries. It is compiled from mapping activities performed in Waukesha County as well as the Cities of Brookfield, Muskego, New Berlin, and Waukesha. Parcel discrepancies from the four municipalities should be directed to City staff for correction.

Geospatial data about Waukesha County, Wisconsin FEMA Flood Insurance Rate Map Panels. Export to CAD, GIS, PDF, CSV and access via API.

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: 05/15/25Tax and Ownership data as exported from Waukesha County Tax Listing 06/01/2025. 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.

The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk data. The primary risk; classificatons used are the 1-percent-annual-chance flood event, the 0.2-percent-annual-chance flood event, and areas of minimal flood risk. The DFIRM Database is derived from Flood Insurance Studies (FISs), previously published Flood Insurance Rate Maps (FIRMs), flood hazard analyses performed in support of the FISs and FIRMs, and new mapping data, where available. The FISs and FIRMs are published by the Federal Emergency Management Agency (FEMA). The file is georeferenced to earth's surface using the UTM projection and coordinate system. The specifications for the horizontal control of DFIRM data files are consistent with those required for mapping at a scale of 1:12,000.

Geospatial data about Waukesha County, Wisconsin Quarter Sections. Export to CAD, GIS, PDF, CSV and access via API.

The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk data. The primary risk classifications used are the 1-percent-annual-chance flood event, the 0.2-percent-annual-chance flood event, and areas of minimal flood risk. The DFIRM Database is derived from Flood Insurance Studies (FISs), previously published Flood Insurance Rate Maps (FIRMs), flood hazard analyses performed in support of the FISs and FIRMs, and new mapping data, where available. The FISs and FIRMs are published by the Federal Emergency Management Agency (FEMA). The file is georeferenced to earth's surface using the NAD 1983 State Plane projection and coordinate system. The specifications for the horizontal control of DFIRM data files are consistent with those required for mapping at a scale of 1:12000.

A lighter version of the basemap for cleaner display and flexible use.

description: Terrain data, as defined in FEMA Guidelines and Specifications, Appendix N: Data Capture Standards, describes the digital topographic data that was used to create the elevation data representing the terrain environment of a watershed and/or floodplain. Terrain data requirements allow for flexibility in the types of information provided as sources used to produce final terrain deliverables. Once this type of data is provided, FEMA will be able to account for the origins of the flood study elevation data. (Source: FEMA Guidelines and Specifications, Appendix N, Section N.1.2).; abstract: Terrain data, as defined in FEMA Guidelines and Specifications, Appendix N: Data Capture Standards, describes the digital topographic data that was used to create the elevation data representing the terrain environment of a watershed and/or floodplain. Terrain data requirements allow for flexibility in the types of information provided as sources used to produce final terrain deliverables. Once this type of data is provided, FEMA will be able to account for the origins of the flood study elevation data. (Source: FEMA Guidelines and Specifications, Appendix N, Section N.1.2).

The Parcel Basemap provides a consumer representation of parcel information that can be used with the aerial photo. The layers in the map provide context for multiple workflows, such as editing data or producing web maps and include roads, major facilities and landmarks, water features, parcels, and boundaries. It is compiled from mapping activities performed in Waukesha County as well as the Cities of Brookfield, Muskego, New Berlin, and Waukesha. Parcel discrepancies from the four municipalities should be directed to City staff for correction.

Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has been removed for sensor distortions and orientation, and terrain relief. Digital orthoimages have the geometric characteristics of a map and image qualities of a photograph. (Source: Circular A-16, p. 16)

U.S. Census Bureau QuickFacts statistics for Vernon town, Waukesha County, Wisconsin. QuickFacts data are derived from: Population Estimates, American Community Survey, Census of Population and Housing, Current Population Survey, Small Area Health Insurance Estimates, Small Area Income and Poverty Estimates, State and County Housing Unit Estimates, County Business Patterns, Nonemployer Statistics, Economic Census, Survey of Business Owners, Building Permits.

A lighter version of the basemap for cleaner display and flexible use.

This map displays various political and administrative districts within Waukesha County. Sources vary depending on district type.

The Quaternary Geologic Map of the Chicago 4° x 6° Quadrangle was mapped as part of the Quaternary Geologic Atlas of the United States. The atlas was begun as an effort to depict the areal distribution of surficial geologic deposits and other materials that accumulated or formed during the past 2+ million years, the period that includes all activities of the human species. These materials are at the surface of the earth. They make up the "ground" on which we walk, the "dirt" in which we dig foundations, and the "soil" in which we grow crops. Most of our human activity is related in one way or another to these surface materials that are referred to collectively by many geologists as regolith, the mantle of fragmental and generally unconsolidated material that overlies the bedrock foundation of the continent. The maps were compiled at 1:1,000,000 scale.

This map contains Building Footprints of Structures in Waukesha County. Footprint source: Bing Maps

Waukesha County Public Land Survey System PLSS

The Waukesha County Park and Open Space Plan was adopted by the County Board on March 27, 2018 and is intended to act as a guide for the acquisition, preservation, development and management of park, recreation and open space lands in the County.

For the full plan text, see https://www.waukeshacounty.gov/globalassets/parks--land-use/park-system/park-and-open-space-plan/2018-final-pos-plan-update-final.pdf for more information.

Waukesha County ArcGIS Online OrganizationWaukesha County AGOL is a mapping platform which allows residents, County employees, and the public display county data through maps. Certain functions are accessible only with authorized credentials.