Markham is a city and a south suburb of Chicago in Cook County, Illinois, United States.

After countless ages of geologic swamps, marshes and sloughs, the prairies dominated the landscape with groves of trees, flowers, and wildlife in abundance.

Markham, southwest of the southern tip of Lake Michigan, had been a crossroad for early pioneers.

The line still appears on government maps and now includes a short portion of Interstate 57 near the US 6 interchange northwest of Markham.

[citation needed] In 1860, a German immigrant named Lawrence Roesner made his way to the southern boundary and settled on land located in the northwest corner of Markham.

He brought with him six seedlings from the Black Forest of Germany and planted them along the Indian Boundary Line.

[3] According to the 2021 census gazetteer files, Markham has a total area of 5.41 square miles (14.01 km2), all land.

[4] There are approximately 500 acres (2.0 km2) of virgin and restored prairie land located within the boundary of Markham.

Experts state that he would have been ineligible to serve in the highest office in that city, despite being sworn in as mayor in October 2018 after an 18-month legal battle.

Anthony "Tony" DeBois, the deputy police chief from 2008 to 2012 and described as an "ally of Markham Mayor David Webb Jr." by the Chicago Tribune, had been the subject to numerous lawsuits alleging brutality and misconduct from 2004 to 2011.

[16][17] In 2014 he was sentenced to 5 years in federal prison for raping a woman under arrest in 2010 and lying about it to the FBI in 2012.

[17][18] Pace provides bus service on multiple routes connecting Markham to destinations across the Southland.