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Finding GIS Data

The AGS Library's Guide to Finding GIS data and working with it for your specific project needs

Milwaukee County Data

MCLIO Data

Milwaukee County Land and Information Office (MCLIO) Data

Homepage: https://data-mclio.hub.arcgis.com/

About: This is the GIS open data portal for Milwaukee County. The Topo-Planimetric county-wide data download offers users some of the most comprehensive basemap data available for Milwaukee County, including natural and man-made features. The Cadastral county-wide data download includes basemap information about real estate and property. Each are available county-wide or for specific areas. 

Data Available: MCLIO spatial data are available for download as .SHP or .KML and as .PNG, .JPG, and .TIF in the case of aerial photos.

Topics Include:

  • Topo-Planimetric Data
    • Vegetation: 
      • Marshes, Trees
    • Planimetric: 
      • Fences, Structures, Ruins, Dams, Piers, Sea Walls or Dock Walls, Bridges, Cemeteries, Concrete, Open Storage, Stockpiles, Areas Under Construction, Quarries, Guard Rails, Overhead Structures, Patios or Decks, Pools, Tanks or Silos, Signs or Billboards, Walls, Propane Tanks
    • Water: 
      • Water Bodies, Water Flow, Culverts
    • Park: 
      • Athletic Fields, Courts, Baseball Diamonds, Bleachers, Golf Courses
    • Survey Control: 
      • National Geodetic Survey (NGS) Triangulation Stations, Traverse Stations, Photo Centers, Bench Marks
    • Topo Contours: 
      • Index Contours, Index Depressions, Approximate Index Contours, Approximate Index Depressions, Intermediate Contours, Intermediate Depressions, Approximate Intermediate Contours, Approximate Intermediate Depressions, Text Clipped Intermediate Contours and Depressions, Building Clipped Intermediate Contours and Depressions, Spot Elevation, Water Elevation
    • Transportation: 
      • Paved Roads, Paved Road Medians or Boulevards, Clipped Paved Roads, Private Roads, Private Road Medians or Boulevards, Unimproved Roads, Paved Driveways, Unpaved Driveways, Paved Parking, Unpaved Parking, Trails, Sidewalks, Railroads, Abandoned Railways, Paved Airport Runways, Unpaved Airport Runways, Paved and Unpaved Shoulders
    • Utility: 
      • Tower Footings, Transmission Towers, Communications Towers, Power or Telephone Poles, Light Poles, Pipelines, Substation Structures
  • Cadastral Data
    • The Cadastral data download offers users land ownership, real estate, and property taxation information. These can be downloaded for specific areas, or county-wide.
  • MCAMLIS Cadastral data download includes:
    • Condos, Certified Survey Maps, Cartographic Features, Street Right of Way, Parcels including dimensions, Taxkeys, Roads and Railways, Sub-Developments

Data Download Applications

Milwaukee County Land Information Office provides some applications for downloading data. They can be found at the links below:

The Contents of Finding and Using GIS Data may be reused with attribution for Non-Commercial purposes.

Finding and Using GIS Data by Board of Regents of the University of Wisconsin System is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License.