Lake County's most comprehensive interactive web mapping application and GIS data viewer. View data, run analysis tools, and create PDF documents all inside Maps Online!

Download In State Plane Projection Here. This is our working version of the Lake County boundary. Although technically the county's eastern border extends eastward into Lake Michigan to the state line where Illinois meets Michigan, we routinely use the Lake Michigan shoreline as our eastern boundary for mapping purposes. The north, west and south boundaries are based on a compilation of survey data which aligns well, but not perfectly, with the border as mapped by neighboring counties and the State of Wisconsin, which forms the northern boundary of the county. Update Frequency: This dataset is updated on a weekly basis.

This three inch pixel resolution color aerial photography was flown between March 19 and March 26, 2022. The files are provided in TIF format which is supported by most GIS and CAD software packages. Its intended usage for viewing is 1" = 100'. The photography has been orthorectified to meet National Map Accuracy Standards for its capture scale. The images are georeferenced to the Illinois State Plane, Eastern Zone. The data set is tiled for dissemination into separate tiles, each of which is 5280 feet (1 mile) on a side.This imagery is provided on an as-is basis, with no guarantees of accuracy or suitability for any particular purpose. Lake County, Illinois, assumes no responsibility for conclusions or decisions reached on the basis of this data.This dataset is projected using the Transverse Mercator map projection. The grid coordinate system used is the Illinois State Plane Coordinate System, East Zone (Zone Number Zone 3776, FIPS 1201), with ground coordinates expressed in U.S. Survey Feet.

The approximate representation of real property areas in Lake County, Minnesota.

Geospatial data about Lake County, Ohio Parcels. Export to CAD, GIS, PDF, CSV and access via API.

This map is a composite of local Lake County data in a single easy to use basemap. It can be used under any other layers as a simple and basic map view. Data is sourced from various basemap feature classes in the Publication2 SDE geodatabase and are updated daily to ensure accurate, up to date base data.

These address points were developed for a myriad of uses including general public geocoding in Lake County web sites and NG-911 emergency dispatch. All addresses are reviewed on a monthly basis against the United States Post Office delivery database to ensure that they are still active. New addresses are added at this time or earlier if they are made known to Lake County GIS by local data partners. Attributes DiscrpAgID through Elev reflect the NENA NG-911 / State of Illinois GIS Data model. Additional local data fields have also been included. The fields LSt_PreDir, LSt_Name, LSt_Type and LSt_PosDir are formatted according to United States Postal Service standards.

Geospatial data about Lake County, Florida Tax Parcels. Export to CAD, GIS, PDF, CSV and access via API.

This layer is a component of Lake County, Illinois Political Boundary data layers.

© Lake County, Illinois GIS/Mapping Division

1861 Lake County Map

Click here to access the data directly from the Illinois State Geospatial Data Clearinghouse.This page from the Illinois Geospatial Data Clearinghouse includes download links for the following Lake County datasets specific to the 2017 LiDAR capture:BreaklinesLASTile IndexDerivativesMetadata

This layer is a component of Lake County, Illinois Political Boundary data layers.

© Lake County, Illinois GIS/Mapping Division

This layer is a component of Lake County, Illinois Soil data layers.

© Lake County, Illinois GIS/Mapping Division

An in-depth description of the LCWI GIS dataset outlining terms of use, update frequency, attribute explanations, and more.

© Lake County, Illinois GIS/Mapping Division

© Lake County GIS Division

© Lake County, Illinois GIS/Mapping Division

Data Source: The data was downloaded from the Lake County, CA GIS portal, the 'parcel.shp' and 'zoning.shp' were spatially joined. Data was enriched with Fire Hazard Zone, Flood Risk Zone, Fault Zones, Landslide Risk, Liquifaction Zones, Drought Conditions, and the potential for Renewable Energy (Solar Radiation and Wind Speed) layers, in addition to the layers provided by the county. The table schema is detailed below.

This six inch pixel resolution color aerial photography was flown between April 16, 2007 and May 7, 2007. The files are provided in JPEG2000, an open format supported by most GIS and CAD software packages. Its intended usage for viewing is 1" = 100. The photography has been orthorectified to meet National Map Accuracy Standards for its capture scale. The images are georeferenced to the Illinois State Plane, Eastern Zone, using the NAD83 HARN horizontal datum. The data set is tiled for dissemination into many separate tiles. Each tile is a section in the Public Land Survey System. The first two digits are the township, the next two are the range and the final two are the section.

© Lake County, Illinois GIS/Mapping Division