Polygon layer of the City of Milwaukee boundary. This layer is updated as needed. The online service can be found at https://milwaukeemaps.milwaukee.gov/arcgis/rest/services/reference/reference_boundary/MapServer/1.

Above-ground utilities-related planimetric points digitized from aerial imagery. This is not an authoritative source for utility provider data - it is intended for reference only. Data is not regularly updated - data last updated in 2022.Other planimetric datasets available:Milwaukee County Planimetric Environmental PointsMilwaukee County Planimetric Water PolygonsMilwaukee County Planimetric Water LinesMilwaukee County Planimetric Structure PolygonsMilwaukee County Planimetric Utility PointsMilwaukee County Planimetric Transportation PolygonsMilwaukee County Planimetric Railroad SignsFor the entire Planimetric dataset, users can download the Planimetric database: Planimetric Download Note: download will begin when link is clicked

2020 Census block group polygons covering Milwaukee County, WI for use with block group-level American Community Survey data and 2020 Census data.Other census related boundaries:Milwaukee County Zip Code Tabulation Areas

Milwaukee County Census Tract

Milwaukee County Census Block

Milwaukee County Census Block GroupsCensus boundaries are intended to be used with census data that can be found here: American Community Survey . ESRI Living Atlas also provides curated layers with census data that can be found here: ArcGIS Living Atlas of the World.

Data is refreshed Jan, Mar, May, Jul, Sep, Nov. To determine the last date edited, refer to the Date_Changed/GIS_Edit_Date fields for each individual layer. To see the latest refresh date, refer to the Item updated date noted in the AGO Item Description page.Property information attributes in parcel polygons are refreshed monthly.To download the full Cadastral Dataset for Milwaukee County click here * Note: download will begin when link is clicked*Other Property Information related layers:Milwaukee County Parcels with Property InformationMilwaukee County Owned ParcelsMilwaukee County Cadastral DatasetMilwaukee County Tax Exempt Parcels

Polygons representing parcels associated with one or more plats of survey - polygons are stacked for parcels with more than one associated plat of survey. Other property information related data:Milwaukee County Foreclosed Parcels

Milwaukee County Parcels with Property Information

Milwaukee County Parcels with Plats of Survey

2020 Census block polygons covering Milwaukee County, WI for use with block-level American Community Survey data and 2020 Census data. Other census related boundaries:Milwaukee County Zip Code Tabulation AreasMilwaukee County Census TractMilwaukee County Census BlockMilwaukee County Census Block GroupsCensus boundaries are intended to be used with census data that can be found here: American Community Survey . ESRI Living Atlas also provides curated layers with census data that can be found here: ArcGIS Living Atlas of the World.

Milwaukee County Municipal Boundaries. Additional administrative boundary layers:Milwaukee County Municipal BoundariesMilwaukee County School District BoundariesMilwaukee County Boundary

greyscale non-ortho-rectified vertical aerial photography covering Milwaukee County Wisconsin; captured April 1980; resolution of approx. 11 inches per pixel; source 9 inch x 9 inch 1:20,000 prints were scanned at 1,800 pixels per inch and georeferenced via third-order polynomial transformation using ortho-rectified imagery as reference

Transportation-related planimetric points that represent railroad crossings in Milwaukee County. Data observed in aerial imagery and digitized. Data may not reflect actual conditions.Other planimetric datasets available:Milwaukee County Planimetric Environmental PointsMilwaukee County Planimetric Water PolygonsMilwaukee County Planimetric Water LinesMilwaukee County Planimetric Structure PolygonsMilwaukee County Planimetric Utility PointsMilwaukee County Planimetric Transportation PolygonsMilwaukee County Planimetric Railroad SignsFor the entire Planimetric dataset, users can download the Planimetric database: Planimetric Download Note: download will begin when link is clicked

Points that represent locations of addresses. The points are placed within the parcel with which an address is associated and when possible, points are placed within the footprint of the building with which an address is associated. When a parcel or building is associated with multiple addresses, multiple points will be placed within each parcel or building. This layer includes keys that relate to related street centerlines, addressable building polygons, and parcel polygons. Data is refreshed Feb, Apr, Jun, Aug, Oct, Dec.The following layers are associated with this dataset:Milwaukee County Planimetric Structure Polygons Milwaukee County Parcels with Property InformationMilwaukee County Addressable Building PolygonsMilwaukee County Street Intersection Points

Map service with a comprehensive collection of maps used for zoning-related activies and decision-making by the City of Milwaukee Department of City Development. For more information, go to https://city.milwaukee.gov/PlanningPermits.

Milwaukee County cadastral map (cached) - data refreshed Jan, Mar, May, Jul, Sep, NovOther related layers available:Milwaukee County Parcels with Property Information

Milwaukee County Owned Parcels

Milwaukee County Cadastral DatasetOptional replacements for the Cadastral Cached service:County Vector Basemap – With Parcel Outlines

County Vector Basemap – Without Parcel Outlines

ESRI Vector Basemaps (Community Maps) cadastral layers (cached)

************************In early 2025, the source of MCLIO public layers will change.*****************************

Please refer to these documents for changes:

https://mclio.maps.arcgis.com/home/item.html?id=0bb68bbae37445adb045d6a44fed3f2a

https://mclio.maps.arcgis.com/home/item.html?id=79c6c9d737c94753a388db7c6f480149

Please update maps, apps and data connections accordingly!This layer shows tax parcel polygons with all related data, including tax key, address, ownership, assessment values, school district, and legal description. Polygons are "stacked" so that there is one parcel polygon per tax key. Data is updated quarterly from the City of Milwaukee and annually from the surrounding municipalities.

Contour lines covering Milwaukee County (cached) derived from 2020 LiDAR data. See additional Feature Classes within the Topographic dataset:Milwaukee County Spot ElevationsMilwaukee County Depression Elevation PointsMilwaukee County Depression PolygonsMilwaukee County Contour Lines & Milwaukee County Cached Contour Lines

Geography provided by the Milwaukee Metropolitan Sewerage District including watersheds, sub-basins, and combined sewer area.

Transportation-related polygons in Milwaukee County observed in the most recent aerial orthophotography - the latest refresh occurred on or shortly after the most recent date in the "Date_Changed" field.Other planimetric datasets available:Milwaukee County Planimetric Environmental Points

Milwaukee County Planimetric Water Polygons

Milwaukee County Planimetric Water Lines

Milwaukee County Planimetric Structure Polygons

Milwaukee County Planimetric Utility Points

Milwaukee County Planimetric Transportation Polygons

Milwaukee County Planimetric Railroad SignsFor the entire Planimetric dataset, users can download the Planimetric database: Planimetric Download Note: download will begin when link is clicked

Hydrographic/hydrologic planimetric lines in Milwaukee County digitized from aerial ortho imagery. Features representing larger river, stream, or creek outlines have been named for labeling purposes. Naming conventions have been taken from other sources - open map and MMSD jurisdictional stream layer. This planimetric layer is not an exhaustive source for water data in Milwaukee County. Other sources for water data include:MMSD Jurisdictional Stream Layer - simple feature layer that focuses on Milwaukee Metropolitan Sewerage District's jurisdictional streams.

Wisconsin DNR Water Data - detailed feature layers for streams and open water data provided by the Wisconsin Dept of Natural Resources.Other planimetric datasets available:Milwaukee County Planimetric Environmental PointsMilwaukee County Planimetric Water PolygonsMilwaukee County Planimetric Water LinesMilwaukee County Planimetric Structure PolygonsMilwaukee County Planimetric Utility PointsMilwaukee County Planimetric Transportation PolygonsMilwaukee County Planimetric Railroad SignsFor the entire Planimetric dataset, users can download the Planimetric database: Planimetric Download *Note: download will begin when link is clicked*Other environmental related data:Milwaukee County LagoonsMilwaukee County Lidar Tree Canopy 2020Milwaukee County Lidar Tree Canopy 2015Milwaukee County Planimetric Tree and Marsh PointsMilwaukee County Planimetric Water PolygonsMilwaukee County Planimetric Water Lines

Application for searching for property information with results in a text-based format. Property search results populated by formatted popup from Property Info Search Map. Available to the public and published on the LIO website.

************************In early 2025, the source of MCLIO public layers will change.*****************************Please refer to these documents for changes: https://mclio.maps.arcgis.com/home/item.html?id=0bb68bbae37445adb045d6a44fed3f2a https://mclio.maps.arcgis.com/home/item.html?id=79c6c9d737c94753a388db7c6f480149Please update maps, apps and data connections accordingly!Contour lines and spot elevation points are derived from 2020 LiDAR data. Dataset is large and takes several hours to download. Consider connecting to the service, downloading a subset of the data through the feature service, or download a prepackaged file geodatabase with the topographic and planimetric data that covers a section (https://mclio.maps.arcgis.com/apps/webappviewer/index.html?id=84c7b8d95af04cdda6b0c2ae26590531). For a countywide dataset, please download the file geodatabase available in the MCLIO Data Download HUB

Performance can vary. If the contour lines are only being used for reference and you don't need the actual vector data, consider using the cached service (https://lio.milwaukeecountywi.gov/arcgis/rest/services/Topographic/Topographic_Cached/MapServer/0).

Milwaukee County parcels with property information filtered to display Milwaukee County owned properties. The parcel data is sourced from the municipalities and aggregated into a single dataset by MCLIO. Due to the varying data input some parcels may be categorized incorrectly. This layer is intended for reference only. Most errors in the parcel information will require correction from the municipality assessor. Other Property Information related layers:Milwaukee County Parcels with Property InformationMilwaukee County Owned ParcelsMilwaukee County Cadastral Dataset