Statewide Parcel Map Web-app example image

Project Background: The Wisconsin Statewide Parcel Map Initiative is a multi-faceted, multi-year collaboration between Wisconsin’s Department of Administration, State Cartographer’s Office, and local governments. It is a statutorily directed effort to aggregate all digital parcel data-sets within the State. Data include 41 tax and parcel attributes in a normalized schema. Updated annually, the resulting statewide GIS parcel layer totals 3.5 million features and is publicly available via web app and database download.
My Role: (As State Cartographer’s Office staff) program management, outreach, documentation, program development, application development, coding.
Public Link:
Stack: ArcGIS, Python, HTML, .css, .js (ArcGIS JavaScript API), Box APIs, many others.

Schema documentation example image

Schema Development and Documentation – Schema integrates local parcel and tax roll elements, was developed to meet statutory requirements, and optimized for public utility. Thoroughly documented for data contributors and consumers.

Statewide Parcel Map - Tools page example image

Tools and Data Collection Site – Site for local data contributors’ utility in preparing data for submission. Includes suite of custom ArcGIS Python tools designed to handle common processing tasks.

Statewide Parcel Map Web-app example image

Web App – Search, filter, and explore the Wisconsin Statewide Parcel Map, served from REST API. Compare parcels across annual versions of the data.

Statewide Parcel Map data download site

Download Data – Download Statewide data as file geodatabase. Select county downloads as file geodatabase or shapefile.