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.

Forest Preserve District of Cook County boundaries. To view or use these shapefiles, compression software and special GIS software, such as ESRI ArcGIS, is required.

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.

This feature layer contains one point for every address in Cook County. Data is updated and maintained by Cook County GIS. If you plan on downloading this dataset it is recommended to use the File Geodatabase or Spreadsheet options. The shapefile format may not work for larger datasets.

The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. Face refers to the areal (polygon) topological primitives that make up MTDB. A face is bounded by one or more edges; its boundary includes only the edges that separate it from other faces, not any interior edges contained within the area of the face. The Topological Faces Shapefile contains the attributes of each topological primitive face. Each face has a unique topological face identifier (TFID) value. Each face in the shapefile includes the key geographic area codes for all geographic areas for which the Census Bureau tabulates data for both the 2020 Census and the annual estimates and surveys. The geometries of each of these geographic areas can then be built by dissolving the face geometries on the appropriate key geographic area codes in the Topological Faces Shapefile.

This layer contains polygons representing land that is under the jurisdiction of the Illinois Nature Preserves Commission (INPC), being designated either as a Nature Preserve, Nature Preserve buffer, or Land & Water Reserve and lying within the boundaries of the Forest Preserve District of Cook County. Actual nature preserve boundaries may vary slightly from GIS polygons shown and should be verified with legal descriptions provided by INPC and Cook County Recorder of Deeds. For more information on Illinois Nature Preserves and the INPC, please visit: Illinois Nature Preserves Commission WebsiteSource data is maintained by the Forest Preserve District's Planning and Development Department (GIS Section) and uploaded to this layer daily.

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.

Location of Cook County government facilities that are publicly accessible within Cook County. Service published in 2016. Cook County GIS and Cook County Real Estate maintain Cook County Government Facilities. Other Government Facilities, Parks, Hospitals, Schools, and Cemeteries created in 2012, updates by Cook County GIS as provided by other agencies.

Created for all users to view and understand jurisdictional boundaries within Cook County. GIS department maintains Municipality feature. State of Illinois maintains Board of Review, Congressional District, Judicial District, State Representative and State Senate. Service published in 2019. Data is updated as provided.

Cook County GIS Dept map of Niles, Evanston, Rogers Park & Jefferson Townships in a pdf format. Includes streets and municipalities.

Shapefile showing boundaries of townships in 1851. Features based upon modern GIS maps of township boundaries and then adjusted to match information from Flower and Mendel's 1861 property map of Cook County, Illinois.

The Parcel 2021 feature contains tax parcel polygons for the 2021 property tax assessment at the County. This feature reflects tax parcel polygons as they existed from 1/1/2021 through 12/31/2021. An ESRI Service is available at: https://hub-cookcountyil.opendata.arcgis.com/datasets/34021b4f3b834a69bf737e6c3344888e_0

Panchromatic aerial imagery flown in 1998 for Cook County, Illinois at 6 inch pixel resolution.It is recommended that the GeoService URL is used for GIS applications, rather than downloading data.

Created for all users to view and understand State Representative District boundaries within Cook County, Illinois. The Illinois State Representative Districts will be effective on January 11, 2023 and are based on the 2020 Census.The Illinois State Representative Districts were received from the Illinois State Board of Elections via download on Jan. 21, 2022 from the following webpage: https://www.elections.il.gov/agencyforms/Redistricting%202022%20Shape%20Files/Cook County GIS projected the data in the local datum: NAD 1983 StatePlane Illinois East FIPS 1201 (US Feet). Cook County GIS also trimmed the districts using the Cook County boundary to only show the districts within the border of Cook County.

Location of hospital point features that are publicly accessible within Cook County. Service published in 2016. Cook County GIS and Cook County Real Estate maintain Cook County Government Facilities. Other Government Facilities, Parks, Hospitals, Schools, and Cemeteries created in 2012, updates by Cook County GIS as provided by other agencies.

Created for all users to view and understand State Senate District boundaries within Cook County, Illinois. The Illinois State Senate Districts will be effective on January 11, 2023 and are based on the 2020 Census.The Illinois State Senate Districts were received from the Illinois State Board of Elections via download on Jan. 21, 2022 from the following webpage: https://www.elections.il.gov/agencyforms/Redistricting%202022%20Shape%20Files/Cook County GIS projected the data in the local datum: NAD 1983 StatePlane Illinois East FIPS 1201 (US Feet). Cook County GIS also trimmed the districts using the Cook County boundary to only show the districts within the border of Cook County.

Cook County GIS Dept map of Berwyn, Cicero, Oak Park & Stickney Townships. West and South Towns in a pdf format. Includes streets and municipalities.

This Board of Review district feature class interprets the location and describes the boundaries of each of the three (3) Board of Review districts located within Cook County, Illinois. The Cook County Board of Review (formerly the Board of Tax Appeals) was created by the 89th General Assembly under statutory changes that established a three-member Board of Commissioners elected from three electoral districts.Attribution for this feature class includes a Board of Review district identifier. The Board of Review is vested with quasi-judicial powers to hear and decide taxpayer complaints on the value or exempt status of real property, which includes residential, commercial, industrial and condominium property, along with vacant land.Cook County Board of Review districts received from the Illinois State Board of Elections via download on Jan. 21, 2022 from the following webpage: https://www.elections.il.gov/agencyforms/Redistricting%202022%20Shape%20Files/Cook County GIS projected the data in the local datum: NAD 1983 StatePlane Illinois East FIPS 1201 (US Feet).The Board of Review Boundary will be effective on December 5, 2022 and is based on the 2020 Census.

Polygon vector map data covering city boundaries for Chicago, Illinois, containing 1 feature.

Boundary GIS (Geographic Information System) data is spatial information that delineates the geographic boundaries of specific geographic features..

This data typically includes polygons representing the outlines of these features, along with attributes such as names, codes, and other relevant information.

Boundary GIS data is used for a variety of purposes across multiple industries, including urban planning, environmental management, public health, transportation, and business analysis.

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.

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Cook County GIS Dept map of Commissioner District 3.