The railroad feature data layer depicts the location of railroad tracks (including single and multiple line tracks, railyards, and spurs) and railroad stations in Cook County, Illinois.

High School Taxing Districts in Cook County

IL State Senate Districts based on Census 2010

IL State Representative Districts based on Census 2010

The purpose of the feature class is to interpret the location of and describe judicial subcircuits in Cook County, Illinois.

U.S. Congressional Districts based on Census 2010

Board of Review District based on 2010 census.

The purpose of this dataset is to indicate the boundary of each Commissioner district in Cook County, Illinois. These boundaries are based off of Census 2010 geographies, were adopted June 2012 and went into effect in December 2014 following the County Commissioner elections.

Historical data. For current boundaries see https://datacatalog.cookcountyil.gov/id/vx2u-6dxj. The purpose of this dataset is to indicate the boundary of each Commissioner district in Cook County, Illinois. These boundaries are based off of Census 2000 geographies and were in effect until the December 2014 County Commissioner elections.

Paved road edge polygons show the location of pavement edges along a road