[4] It is home to World Wide Technology Raceway at Gateway and the first Bulgarian Orthodox church in the United States.

However, the Madison city limits now extend 3 miles (5 km) south, 4 miles (6 km) east, and 8 miles (13 km) north of the city center, so that it is also bordered by Hartford to the extreme north, Pontoon Beach to the east, Fairmont City to the southeast, and Brooklyn to the southwest.

Illinois Route 203 passes through the center of Madison as MC Cambridge Avenue and Edwardsville Road, leading north into Granite City and south to Interstates 55 and 70 at their Exit 4 in the southernmost part of town.

Illinois Route 3 (Cedar Street) crosses the western part of Madison, leading south into Venice before crossing the Mississippi into St. Louis, and north through Granite City to Hartford.

[1] At the 2000 census there were 4,545 people, 1,881 households, and 1,117 families living in the city.

Amtrak's Texas Eagle as well as its Lincoln Service pass through Madison, but don't stop in the small city.