579 ft.
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.
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.
Walterboro, SC has an elevation of approximately 66 feet above sea level.
The elevation of Midland, Texas is around 2,800 feet above sea level.
Antarctica has the lowest elevation above sea level among the continents.
Charles Mound, located in northwestern Illinois, has the state's highest elevation at 1,235 feet above sea level.
Sea level (average sea level) is the start point for measuring elevation on this planet and is considered to be the same everywhere. Chicago, however, is not at sea level; rather its mean elevation is 586 feet (179 meters) above sea level.
28.3 inches above sea level
Pekin, Illinois is 518 feet (158 meters) above sea level
La Grange Illinois is 656 feet above sea level
Rockton, Illinois is 738 feet (225 meters) above sea level
667 ft above sea level
The highest point of elevation in Illinois is Charl's Mound at 1,235ft
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.
607 feet above sea level average Source: http://www.idcide.com/citydata/il/skokie.htm
It is Charles Mound at 1,235 feet above sea level.
The height above or below sea level is "elevation". Altitude is used only for distance above sea level.