[1] Since its inception, the district has represented parts of the South Side of Chicago and the southwest suburbs of Cook County.
In its initial 1994 iteration, the district encompassed parts of the South Side of Chicago as well as the southwest suburbs of Cook County.
[4] The district, as redistricted in 2012 following the 2010 United States Census, included parts of Burnham, Calumet City, Chicago, Dolton, Evergreen, Lansing, South Holland.
[8] The portion of Chicago represented by the district was in the extreme southwest edge of the city, including the Lake Calumet region.
[9] The district, as redistricted in 2022 following the 2020 United States Census covers similar boundaries as its previous incarnation.