Suburban Cook County Election Precincts maintained by the Cook County Clerk's Election Department. Not included are the City of Chicago Election Precincts which are maintained by the Chicago Board Of Elections. An ArcGIS Service is available at: https://hub-cookcountyil.opendata.arcgis.com/datasets/0e91b48d49744346be343f0cb99d25bd_0/

Voting District Project of the Census Redistricting Data Program commenced in Summer of 2017 to establish the state’s Voting precincts within the bureau’s tiger geography. The initial phase used the Bureau’s GUPS plugin for QGIS to update the districts from the 2010 round, and then a secondary verification phase took place to ensure the updated voting districts were properly enacted into Tiger geographic files. A post census effort took place in December 2021 to cut the number of precincts down countywide to 1430. Election Data Services conducted Phase 2 of the Census Redistricting Data Program for the State of Illinois, as well as implemented changes made post census in Cook County.

Precincts are updated as needed before every election by the Cook County Clerk's Elections Department.

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

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

This layer is a component of Illinois Reference Layers.

© Illinois State Geological Survey

IL Political Townships. This data source is updated by the Illinois Department of Revenue.

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

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

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

Download In State Plane Projection Here. These boundaries represent either a Fire Protection Taxing District or a municipal fire department and are based on legal documents filed in the office of the Recorder of Deeds and on court orders. Mapping is based on the legal descriptions from those documents, which relate to existing parcel, municipal, township and PLSS features. Attributes include the fire service provider name and address. Update Frequency: This dataset is updated on a weekly basis.

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.

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.

Milepost information shown in this layer is compiled from numerous sources and may not be complete or accurate. Created from LiDAR Final 2021-2022 Sign Faces. Based on 'MUTCD LIKE D10-%'

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.

This feature layer depicts land use within northeastern Illinois broken out into 57 categories. This dataset is an update of the 2018 parcel-based Land Use Inventory and the primary focus was on parcels whose assessment records or geometry had changed between 2018 and 2020, suggesting a change in land use. Parcels were dissolved on common land use types, and polygons were generated for non-parcel areas (e.g. road rights-of-way) and assigned a generic “non-parcel” category.Download the data from the CMAP Data Hub.Supporting metadata and documentation for the 2020 Land Use Inventory for Northeastern Illinois:

2020 Land Use Inventory Classification Schema provides a full description of all land use categories. 2020 Land Use Inventory Geodatabase Schema provides a description of LUI attributes and domains. 2020 Land Use Inventory Metadata LANDUSE lookup .csv table to support shapefile downloads.

More information can be found on CMAP's Land Use Inventory webpage.

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.

Cook County GIS Dept map of Commissioner District 10

Board of Review District based on 2010 census.

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.