The average elevation above sea level in Chicago, Illinois is about 594 feet (181 meters).
Pekin, Illinois is 518 feet (158 meters) above sea level
Charles Mound, located in northwestern Illinois, has the state's highest elevation at 1,235 feet above sea level.
Carbondale, Illinois is 415 feet (126.5 meters) above sea level
The average elevation of Illinois is about 600 feet above sea level. The highest point in the state is Charles Mound, which reaches 1,235 feet above sea level.
Chicago is 597 feet (182 meters) above sea level
Charles Mound, located in northwestern Illinois, has the state's highest elevation at 1,235 feet above sea level. The lowest point in Illinois is on the Mississippi River at 279 feet above sea level.
Chicago lies on the shore of Lake Michigan. The highest point, at 735 feet (224 m), is at a landfill located in the Hegewisch community area on the city's far south side.
Salem Illinois is 530 feet above sea level.
Athens, Illinois is 602 feet (183 meters) above sea level
The average elevation of Chicago, IL is around 579 feet above sea level. The highest point in the city is located at 672 feet above sea level.
La Grange Illinois is 656 feet above sea level