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Metadata

The metadata (data about data) listed below describes the content, source, scale, and currency of the GIS data layers that the Land Information Division has made available on the Interactive Mapping System. Some of these layers are also available for purchase - see the Products and Fees page for more information. Please contact us if you have further questions about the data available on the web or to report any errors or omissions.

WALWORTH COUNTY LAND INFORMATION DIVISION METADATA

 

Base Map Features Topography
Public Land Survey System Orthophotography
Zoning Cadastral

Environmental Features

 

 

Address Points
Description Point feature that represents an addressed structure.
Data Source Walworth County Land Information Division
Data Currency Updated regularly.
Mapping Scale -
Map Accuracy Sub-meter (differentially-corrected GPS data)
Compilation Method Each point was field-captured using GPS.
Coverage Countywide

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Streets
Description Line feature that represents the centerline of a named right-of-way.
Data Source Walworth County Land Information Division
Date Currency Updated regularly.
Mapping Scale -
Map Accuracy Sub-meter (differentially-corrected GPS data)
Compilation Method Each centerline was field-captured using GPS.
Coverage Countywide

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PLSS Sections
Description Area feature that represents a Public Land Survey System (PLSS) Section (1 square mile)
Data Source Southeastern Wisconsin Regional Planning Commission (SEWRPC)
Date Currency Current as of October 2005
Mapping Scale 1" = 100' (Cities and Villages) / 1" = 200'
Map Accuracy +/- 3.3' (100 scale); +/- 6.6' (200 scale)
Compilation Method Sections were derived by creating connecting lines between PLSS approximate and monumented corners.
Coverage Countywide

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PLSS Corners
Description Point feature that represents a PLSS Section Corner, 1/4-section Corner, or other monument
Data Source Southeastern Wisconsin Regional Planning Commission (SEWRPC)
Date Currency Current as of October 2005
Mapping Scale 1" = 100' (Cities and Villages) / 1" = 200'
Map Accuracy +/- 3.3' (100 scale); +/- 6.6' (200 scale)
Compilation Method PLSS monuments were established in the field and some are approximate.
Coverage Countywide

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DNR Wetlands
Description Point feature that represents a possible wetland located beyond areas zoned C-1 or C-4.
Data Source Created by SEWRPC; Maintained by Walworth County Land Information Division
Date Currency Updated regularly.
Mapping Scale 1" = 200'
Map Accuracy +/- 6.6 feet
Compilation Method Points were extracted from the DNR Wisconsin Wetland Inventory and compared to zoning areas.
Coverage Countywide

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Zoning District Areas
Description Feature that represents the boundary of a zoning district.
Data Source Created by SEWRPC; Maintained by Walworth County Land Information Division
Date Currency Updated regularly.
Mapping Scale 1" = 200'
Map Accuracy +/- 6.6 feet
Compilation Method Digitized from the original hard-copy maps and matched to features on the Orthophoto where possible
Coverage Countywide

 

Zoning District Codes

District Code Description District Code Description
A-1 Prime Agricultural Land R-4 Multi Family Residence (Sewered or Unsewered)
A-2 Agricultural Land R-5 Planned Residential Development
A-3 Agricultural Land Holding R-6 Planned Mobile Home Park Residence
A-4 Ag-Related Manufacturing, Warehousing R-7 Mobile Home Subdivision Residence
A-5 Agricultural-Rural Residential R-8 Multi Family Residence (Sewered or Unsewered)
C-1 Lowland Resource Conservation B-1 Local Business
C-2 Upland Resource Conservation B-2 General Business
C-3 Conservancy-Residential B-3 Waterfront Business
C-4 Lowland Resource Conservation (Shoreland) B-4 Highway Business
P-1 Recreational Park B-5 Planned Commercial Recreation Business
P-2 Institutional Park B-6 Bed and Breakfast
R-1 Single Family Residence (Unsewered) M-1 Industrial
R-2 Single Family Residence (Sewered) M-2 Heavy Industrial
R-2A Single Family Residence (Sewered) M-3 Mineral Extraction
R-3 Two Family Residence (Sewered or Unsewered) M-4 Sanitary Landfill

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Shoreland Areas
Description Area that represents the County's shoreland zoning jurisdiction (1,000 ft from lakes, 300 ft from streams)
Data Source Created by SEWRPC; Maintained by Walworth County Land Information Division
Date Currency Updated regularly.
Mapping Scale 1" = 200'
Map Accuracy +/- 6.6 feet
Compilation Method Digitized from the original hard-copy maps and/or created by buffering navigable lakes and streams
Coverage Countywide

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Floodplain
Description Line that represents the approximate 100-year floodplain elevation.
Data Source Created by SEWRPC; Maintained by Walworth County Land Information Division
Date Currency Updated regularly.
Mapping Scale 1" = 200'
Map Accuracy +/- 6.6 feet
Compilation Method Digitized from the original hard-copy maps and also by referring to FEMA map panels
Coverage Countywide

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Gross Sanitary District
Description Area that represents existing sewered areas as well as areas proposed to be served by sewer.
Data Source Created by SEWRPC; Maintained by Walworth County Land Information Division
Date Currency Updated regularly.
Mapping Scale 1" = 200'
Map Accuracy +/- 6.6 feet
Compilation Method Originally digitized from original hard-copy maps and updated as changes are approved
Coverage Countywide

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Zoning Civil Division
Description Municipal boundary as shown on the County's zoning maps (may not be the official boundary).
Data Source Created by SEWRPC; Maintained by Walworth County Land Information Division
Date Currency Updated regularly.
Mapping Scale 1" = 200'
Map Accuracy +/- 6.6 feet
Compilation Method Originally digitized from original hard-copy maps and updated as annexations occur.
Coverage Countywide

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Extra-Territorial Zoning Area
Description City or village's area of zoning jurisdiction that is beyond its corporate limits.
Data Source Created by SEWRPC; Maintained by Walworth County Land Information Division
Data Currency Updated regularly.
Mapping Scale 1" = 200'
Map Accuracy +/- 6.6 feet
Compilation Method Originally digitized from original hard-copy maps and updated as changes occur
Coverage Countywide

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USGS Streams
Description A stream course beyond shoreland jurisdiction where a navigability determination has not been done.
Data Source Created by SEWRPC; Maintained by Walworth County Land Information Division
Data Currency Updated regularly.
Mapping Scale 1" = 200'
Map Accuracy +/- 6.6 feet
Compilation Method Originally taken from USGS Quadrangle maps and clipped to shoreland jurisdictional limits.
Coverage Countywide

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Soil Survey Area
Description Area features that show the kinds and distribution of soil types on the landscape.
Data Source USDA, Natural Resources Conservation Service
Data Currency March 2004
Mapping Scale 1" = 1000'
Map Accuracy The accuracy of soil delineations on the ground varies with the transition between map units.
Compilation Method Digitized from scanned, georeferenced soils maps.
Coverage Countywide

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2020 Land Use Plan
Description Polygon that represents planned land use from the "2020 Walworth County Land Use Plan".
Data Source Southeastern Wisconsin Regional Planning Commission (SEWRPC)
Data Currency May 2004
Mapping Scale 1" = 400'
Map Accuracy +/- 13.3'
Compilation Method Digitized by analyzing existing land use plans, aerial photography, and zoning data.
Coverage Countywide

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2000 Environmental Corridors
Description Polygon features of existing environmental corridors and isolated natural resource areas (in 2000).
Data Source Southeastern Wisconsin Regional Planning Commission (SEWRPC)
Data Currency 2000
Mapping Scale 1" = 400'
Map Accuracy +/- 13.3'
Compilation Method Digitized by analyzing 1" = 400' aerial photography.
Coverage Countywide

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Contour Lines
Description Index (10'), Intermediate (2'), and approximate elevation contours.
Data Source Southeastern Wisconsin Regional Planning Commission (SEWRPC)
Data Currency Varies by area - click here for map.
Mapping Scale 1" = 100' (Cities and Villages) / 1" = 200'
Map Accuracy +/- 3.3' (100 scale); +/- 6.6' (200 scale)
Compilation Method Compiled using stereo-photogrammetric methods.
Coverage Countywide

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Spot Elevations
Description Point of known elevation.
Data Source Southeastern Wisconsin Regional Planning Commission (SEWRPC)
Data Currency Varies by area - click here for map.
Mapping Scale 1" = 100' (Cities and Villages) / 1" = 200'
Map Accuracy +/- 3.3' (100 scale); +/- 6.6' (200 scale)
Compilation Method Compiled using stereo-photogrammetric methods.
Coverage Countywide

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Structure Outlines
Description Roof outlines of structures.
Data Source Southeastern Wisconsin Regional Planning Commission (SEWRPC)
Data Currency Varies by area - click here for map.
Mapping Scale 1" = 100' (Cities and Villages) / 1" = 200'
Map Accuracy +/- 3.3' (100 scale); +/- 6.6' (200 scale)
Compilation Method Compiled using stereo-photogrammetric methods.
Coverage Countywide

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2010 Orthophotography
Description Digital color orthophotography
Data Source Southeastern Wisconsin Regional Planning Commission (SEWRPC)
Data Currency March / April 2010
Mapping Scale 1:2400 (1"=200'); 1 foot pixels
Map Accuracy +/- 8' per 2010 SEWRPC Metadata
Compilation Method The aerial photography was collected using a Digital Mapping Camera from a nominal flight elevation of 10,000 feet. The images were processed with the use of orthophoto elevation model files to create digital orthophoto files in GeoTIFF format.
Coverage Countywide

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2005 Orthophotography
Description Digital color orthophotography
Data Source Southeastern Wisconsin Regional Planning Commission (SEWRPC)
Data Currency April / May 2005
Mapping Scale 1:2400 (1"=200'); 1 foot pixels
Map Accuracy +/- 6.6'
Compilation Method The aerial photography was collected using a Digital Mapping Camera from a nominal flight elevation of 10,000 feet. The images were processed with the use of orthophoto elevation model files to create digital orthophoto files in GeoTIFF format.
Coverage Countywide

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2000 Orthophotography
Description Digital orthophoto images obtained from 1:20,000 scale black-and-white aerial photography
Data Source Southeastern Wisconsin Regional Planning Commission (SEWRPC)
Data Currency March 2000
Mapping Scale 1:2400 (1"=200'); 1 foot pixels
Map Accuracy +/- 6.6'
Compilation Method 1"=1666' ortho-rectified aerial photography.
Coverage Countywide

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1995 Orthophotography
Description Digital orthophoto images obtained from 1:20,000 scale black-and-white aerial photography
Data Source Southeastern Wisconsin Regional Planning Commission (SEWRPC)
Data Currency March 1995
Mapping Scale 1:4800 (1"=400'); 2 foot pixels
Map Accuracy +/- 15'
Compilation Method 1"=1666' ortho-rectified aerial photography.
Coverage Countywide

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Parcel Area
Description A area feature that depicts the extent of a real property parcel; includes the tax-key number.
Data Source Created by SEWRPC; Maintained by Walworth County Land Information Division
Data Currency Updated regularly.
Mapping Scale 1" = 100' (Cities and Villages) / 1" = 200'
Map Accuracy +/- 3.3' (100 scale); +/- 6.6' (200 scale)
Compilation Method Digitized by analyzing subdivision plats, CSMs,Condominiums, deeds and the tax roll.
Coverage Countywide

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Parcel Line
Description A line that defines all or a portion of the described exterior boundary of a parcel.
Data Source Created by SEWRPC; Maintained by Walworth County Land Information Division
Data Currency Updated regularly.
Mapping Scale 1" = 100' (Cities and Villages) / 1" = 200'
Map Accuracy +/- 3.3' (100 scale); +/- 6.6' (200 scale)
Compilation Method Digitized by analyzing subdivision plats, CSMs,Condominiums, deeds and the tax roll.
Coverage Countywide

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Plat Area
Description An area feature that depicts the extent of subdivision, CSM, or Condominium.
Data Source Created by SEWRPC; Maintained by Walworth County Land Information Division
Data Currency Updated regularly.
Mapping Scale 1" = 100' (Cities and Villages) / 1" = 200'
Map Accuracy +/- 3.3' (100 scale); +/- 6.6' (200 scale)
Compilation Method Digitized by analyzing subdivision plats, CSMs,Condominiums, deeds and the tax roll.
Coverage Countywide

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Right-of-Way (ROW) Line
Description A line that defines the outermost limits of a public road or railroad ROW.
Data Source Created by SEWRPC; Maintained by Walworth County Land Information Division
Data Currency Updated regularly.
Mapping Scale 1" = 100' (Cities and Villages) / 1" = 200'
Map Accuracy +/- 3.3' (100 scale); +/- 6.6' (200 scale)
Compilation Method Digitized by analyzing subdivision plats, CSMs,Condominiums, deeds and the tax roll.
Coverage Countywide

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Cadastral Annotation
Description Text that accompanies cadastral features, such as dimensions, tax key numbers, & subdivision names.
Data Source Created by SEWRPC; Maintained by Walworth County Land Information Division
Data Currency Updated regularly.
Mapping Scale 1" = 100' (Cities and Villages) / 1" = 200'
Map Accuracy +/- 3.3' (100 scale); +/- 6.6' (200 scale)
Compilation Method Digitized by analyzing subdivision plats, CSMs,Condominiums, deeds and the tax roll.
Coverage Countywide

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Civil Division Boundary
Description Line that represents the boundary between municipalities.
Data Source Created by SEWRPC; Maintained by Walworth County Land Information Division
Data Currency Updated regularly.
Mapping Scale 1" = 100' (Cities and Villages) / 1" = 200'
Map Accuracy +/- 3.3' (100 scale); +/- 6.6' (200 scale)
Compilation Method Digitized by referring to recorded annexation documents.
Coverage Countywide

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