Access Illinois's 164 data folders with 1,435 services and 4,378 layers of parcel boundaries, property tax records, and GIS mapping data.

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 ** In addition to the Tax Parcel polygons feature class, the hyperlink download above also contains a parcel point data layer ** Parcel boundaries are developed from deeds, plats of subdivision and other legal documents going back to the mid 1800's, following generally accepted practices used in Public Land Survey System states, and following guidelines established by the Illinois Department of Revenue and the International Association of Assessment Officials. Lake County's parcel coverage is based on resolving the accumulated evidence of all of the legal documents surrounding a particular parcel or subdivision, and not the result of a countywide resurvey. These parcel boundaries are intended to be a visual inventory of property for tax and other administrative purposes; they are not intended to be used in place of an on-site survey or for the precise determination of property corners or PLSS features based on GIS coordinates. In Illinois, only a registered professional land surveyor is authorized to determine boundary locations. Included are the tax parcel boundaries, represented as polygons and centroids, for all changes resulting from legal records submitted to the Recorder of Deeds up to December 31st of the preceding year, as well as any court orders, municipal annexations and other transactions which impact the tax parcel boundaries. NOTE: The ONLY attribute included is the Property Index Number, or PARCEL_NUM. Additional assessment attribute data can be downloaded here This parcel layer is used for tax assessment purposes and for a variety of other local government functions. It changes often, both spatially and in its attribution, based on divisions or consolidations, the sale of property and other transactions. Example: PIN 08-17-304-014 can be interpreted as follows: Township 08, Section 17, Block 304, Parcel 014. Note that the first digit of block, "3" in this example, signifies that the parcel lies in quarter section 3. The quarter sections are labeled from 1 through 4, representing the northwest, northeast, southwest and southeast quarter sections, respectively. Update Frequency: This dataset is updated on a weekly basis.

Vector polygon map data of property parcel line from Rockford, Illinois containing 126,327 features.

Property parcel GIS map data consists of detailed information about individual land parcels, including their boundaries, ownership details, and geographic coordinates.

Property parcel data can be used to analyze and visualize land-related information for purposes such as real estate assessment, urban planning, or environmental management.

Available for viewing and sharing as a map in a Koordinates map viewer. This data is also available for export to DWG for CAD, PDF, KML, CSV, and GIS data formats, including Shapefile, MapInfo, and Geodatabase.

Includes: IDOT, NAIP, NAPP data and IL geography shapefiles ISGS data from Don

Cook County GIS Dept map of Thornton Township in a pdf format. Includes streets and municipalities.

Hyperspectral data of IL. Visit https://dataone.org/datasets/sha256%3A764320d6b18239943c99b602c5905e985f6acf580247ed980841f82efa3a0a62 for complete metadata about this dataset.

Cook County GIS Department map of municipal boundaries in Cook Cook County, Illinois in PDF format. Includes major streets, waterbodies, rail, Cook County Forest Preserve, and municipal boundaries.

Map service containing IL Boundaries - Counties, IDOT Districts, Congressional Districts, House of Representative Districts, Senate Districts, Political Townships, Urban Areas, Metropolitan Planning Organization (MPO), Towns.

This layer is a component of Illinois Reference Layers.

© Illinois State Geological Survey

This application can be used to help determine if an applicant's project meets the low/moderate income threshold for eligibility to be funded under the Lake County Illinois Community Development Block Grant program.

Land cover in the USand the CCW - The land cover data is collected annually from USDA for the whole US. The data can be downloaded here https://nassgeodata.gmu.edu/CropScape/. Data resolution is 30 *30 m. The available data period for both USRB and CCW is from 2008 till 2015

This dataset contains address points for addresses in Cook County. An ESRI Service is available at: https://hub-cookcountyil.opendata.arcgis.com/datasets/5ec856ded93e4f85b3f6e1bc027a2472_0/

Data is updated and maintained by Cook County GIS.

Cook County GIS Dept map of Commissioner District 10

This dataset is a derivative of the Federal Township Plats for Lake County, Illinois, the originals of which were captured on a high-resolution scanner by the Illinois State Archives. The Lake County GIS/Mapping division received permission to acquire and georeference these images using ERDAS Imagine. Since the source material was distorted in an unsystematic way due to the rigors of time and points of reference were abundant, the rubber sheeting model in Imagine with the linear option was chosen to rectify the images. The USGS delineations of the section corners for their 1:24,000 scale 7.5 minute quadrangles were chosen as a base because they are a publicly available resource that exists for the entire state of Illinois should any other counties or organizations wish to make a similar product. This final product consists of a mosaic of the townships in Lake County also created in Imagine using their mosaic tool with each township being cropped to its border in the process.

Illinois US Congressional Boundaries. Updated boundary on 1/21/2022 from https://elections.il.gov/shape/Legislative officials updated on 1/19/2023

Cook County GIS Dept map of Hanover Township in a pdf format. Includes streets and municipalities.

Data Contains:

• USRB_LiDAR_DEM.zip - 1.2 meter DEM of Upper Sangamon River Basin. QA/QC: Yes.

• USRB_10m_DEM.zip - 10 meter DEM of Upper Sangamon River Basin. QA/QC: Yes, USRB_30m_DEM_NAD16.zip - 30 meter DEM of Upper Sangamon River Basin with NAD16 projection. QA/QC: Yes.

• SRB_30m_DEM_GCS83.zip - 30 meter DEM of Upper Sangamon River Basin with GCS83 projection. QA/QC: Yes.

• USDEM - This dataset contains 30m DEM, 10m DEM and LiDAR DEM (1.2m).

Illinois Department of Transportation District Boundaries

Download In State Plane Projection Here. Municipal boundaries are based on annexations, court orders and other legal documents filed in the office of the Recorder of Deeds. Mapping is based on the legal descriptions from those documents, which relate to existing parcel boundaries or to the underlying PLSS. Important attributes include "Type" which contains an "I" if the polygon represents an incorporated area, and a "U" if unincorporated. The municipality name for "I" type polygons is included in the attribute "NAME1." Update Frequency: This dataset is updated on a weekly basis.