Tax Agency rates for Tax Years 2006 through 2013. Data is updated yearly. For more information on Tax agencies visit the Cook County Clerk's website at: http://www.cookcountyclerk.com/tsd/Pages/default.aspx

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.

This check register provides a cumulative record of payments to County suppliers, vendors and other payees as approved by the Cook County Board of Commissioners. Data covers December 2009 through November 2016. For data after November 2016 click here: https://datacatalog.cookcountyil.gov/Finance-Administration/Cook-County-Check-Register/4h27-5s9x

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

IL State Senate Districts based on Census 2010

IL State Senate 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.

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.

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.