Markham is divided between two congressional districts. Most of the city is in Illinois's 2nd congressional district, consisting of the area south of the Dan Ryan Expressway (I-57) that is bordered on the west by Homan Avenue from 155th to 161st streets, Trumbull Avenue from 161st to 163rd, and Lawndale Avenue from 163rd to 167th; the rest of the city is part of the 1st district.
Markham is divided between two congressional districts Most of the city is in Illinois's 2nd congressional district consisting of the area south of the Dan Ryan Expressway (I-57) that is bordered on the west by Homan Avenue from 155th to 161st streets Trumbull Avenue from 161st to 163rd and Lawndale Avenue from 163rd to 167th; the rest of the city is part of the 1st district