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.

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 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.

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

© Lake County, Illinois GIS/Mapping Division

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 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.

Link to Lake County, IL website.

The primary division of a simultaneous conveyance and generally referred to as lots, units, or common elements. Not to be confused with parcel boundaries. This layer is maintained by the Auditor's Office.

This two foot pixel resolution black and white aerial photography was flown on various dates in July and August 1939. They were scanned in 2001, and georeferenced in 2002. This data should NOT be used at a scale larger than 1 inch = 400 feet. Due to the lack of sufficient camera calibration information, errors will increase towards the margin of each underlying photo, although this effect has been minimized by cropping individual photos to make this mosaic. Since these photos were scanned from paper prints, local distortions (from the media stretching and/or shrinking) may be present as well as pen marks and fading. Caution should be used in interpreting features in this photography with reference to current conditions. In particular, many roads and road intersections have been realigned in the more than 60 years since this photography was taken. This historic aerial photography was captured in digital form as the result of a cooperative project between the Illinois State Geological Survey and the Geographic Information Systems (GIS) and Mapping Division of the Lake County Department of Information Technology. It is part of a statewide program to preserve the oldest known extensive aerial photography for future generations. The original photography was performed by the U.S. Department of Agriculture as part of a nation-wide program for use in agricultural assessment. Since the original negatives became unstable and were destroyed by the National Archives in the 1980's, only paper prints remain. A set of paper prints representing the best available quality was assembled from the collections of several agencies.

© Lake County, Illinois GIS/Mapping Division

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

1861 Lake County Map

This data represents the land contour elevations for Lake County, Indiana. The contours are at intervals of five feet. The contours were created using a 5 foot resolution DEM derived from 2005 orthophotography. The DEM was run through the focal statistics tool using a 10 x 10 cell grid to smooth the contour lines. Contours were then created using the contour tool in ArcGIS. The contours were clipped down to the county boundary. The steps in the video linked below were followed to create these countours https://www.youtube.com/watch?v=q3iblCHGoZk.

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

© Lake County, Illinois GIS/Mapping Division