Geospatial Data

The purpose of the Geospatial Data page is to provide the public with access to web applications to view and/or download data from Milwaukee County Land Information Office.  Data that is not available via ArcGIS Map Service or in your preferred format can be requested using the data request form.


Please note, data not available via an ArcGIS Map Service or in your preferred format can be requested. There may be a cost associated with distributing the data that will be estimated at the time of the request.  All data in this catalog (unless otherwise noted) is referenced to the GCS North American 1927 coordinate system, using the NAD 1927 datum and Clarke 1866 spheroid. (NAD_1927_StatePlane_Wisconsin_South_FIPS_4803)  - WMS Services, by default, are in GCS_WGS_1984. It is recommended that you do not add them first to a map document, or be sure to set the projection to Wisconsin State Plane after adding the layer.


Data Download App

MCLIO Data Download App: Topographic/Planimetric and Cadastral Data

  • Available by Township Section in CAD and GDB Format



Open Data

Open Data Portal

  • Available in Shapefile, KML, or Spreadsheet form



Data Download Form

Data Download Form

  • Access a variety of county-wide data
  • Formats: GDB, LAF, TIF, SID



Cadastral Viewer

Cadastral Viewer with Property Information Search

  • View cadastral data and access property and cadastral documents








Milwaukee Metro Geospatial Events

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