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.

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

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.

Numerous data layers of Cook County Data. Including cultural features, forest preserve features, Public Land Survey, transportation features, tax districts, political districts, cenus boundaries, and zip code boundaries.

Parcels with tax assessor data for SSMMA region. See Code Definitions for Cook County parcel classification details.CAVEAT EMPTOR: Cook County data from 2016, Will County data from 2017.We are currently in the process of collecting Cook County data and processing Will County data for 2019.For up-to-date parcel tax records, visit the Cook County GIS Viewer or Will County GIS Viewer, or access the Cook County Tax Assessor's databases [1] [2] or the Will County Tax Assessor's Office.Municipalities in SSMMA's GIS Consortium may contact the GIS staff if more recent data is available to display on municipal viewers.

The Public Land Survey System (PLSS) is the way land in the United States is subdivided, it forms the foundation of Cook County's cadastral system for identifying and locating land records. Tax parcels are identified using township and section notation, in a modified format. The PLSS serves as a way for users to navigate the parcel geodatabase. This PLSS feature data set is intended to correspond to tax pages on the Cook County Tax Maps. They should not be used for measurement or surveyor purposes. In addition, the parcel attributes PINA (area/township) and PINSA (subarea/section) do not necessarily correspond to the PLSS township and section polygon in which a given parcel resides. The PLSS data is modeled as a single composite network coverage that encompasses townships (area), sections (subarea), quarter sections, and half quarter section. Tax map pages, which typically correspond to half quarter sections (in an east-west split), are modeled as a region subclass in the LANDFABRIC layer. If an indigenous people's reserve was present on the tax map, it was digitized to create subpolygons of the half-quarter section, and those polygons were attributed with the name of the reserve. Within this PLSS data set, a half-quarter section is the smallest polygon unit, except in cases where an Indigenous People's Reserve line is present. The cadastral data for Cook County have previously not been digital nor automated. This project is the initial automation for this information. This database was designed to represent a continuous, non-overlapping spatial database accounting for all land area in Cook County.The PLSS is updated as needed.

Cook County GIS Dept map of Commissioner District 12

Private-facing version: https://ssmma-gis.maps.arcgis.com/home/item.html?id=e391d81589c149919cd84a5088d46e80Update log:Jun. 28, 2024 - fixed an issue where taxpayer data showed

Cook County GIS Dept map of Commissioner District 10

Cook County GIS Dept map of Commissioner District 4

Cook County GIS Dept map of Cook County Facilities in PDF format. The map shows all public Cook County Facilities, municipalities, Cook County highway jurisdiction, Cook County Commissioner Districts, major streets, highways, and water bodies.

Cook County GIS Dept map of Commissioner District 8

Cook County GIS Dept map of Commissioner District 11

Cook County GIS Department map of Cook County Commissioner District 16 in PDF format. Includes major streets, waterbodies, rail, and Cook County Commissioner District boundaries.

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.

Cook County GIS Dept map of Commissioner District 16

Board of Review District based on 2010 census.

Splitgraph serves as an HTTP API that lets you run SQL queries directly on this data to power Web applications. For example:

See the Splitgraph documentation for more information.

Cook County GIS Dept map of Commissioner District 1.

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.

Cook County GIS Dept map of Worth & Lake Townships in a pdf format. Includes streets and municipalities.