Cook_County_GISUnincorporated Cook County population by political township based on the 2010 United States Census Block population data. The unincorporated area boundaries are based on data from 2012 created 5/30/2014. How we aggregated the data: Cook County Forest Preserves holdings were removed from the unincorporated areas before aggregating data. The ESRI ArcGIS Pro Apportion Polygon tool was used to aggregate and apportion the Census Block population by township area. Unincorporated political townships with a population of zero were removed. Data Sources:ArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/6d6eb92d93c34ab0926c19bf79accd30_2012engCook CentralPublicCensus population of unincorporated Cook County by township (2012) [Illinois--Cook County]Web servicesIllinois--Cook CountyIllinois2012