Illinois topographic maps
Click on a map to view its topography, its elevation and its terrain.
Jackson County
According to the US Census Bureau, the county has a total area of 602 square miles (1,560 km2), of which 584 square miles (1,510 km2) is land and 18 square miles (47 km2) (3.0%) is water. The average elevation is around 400 feet (120 m), except near the Mississippi River.
Average elevation: 143 m
Chicago
United States > Illinois > Cook County
When Chicago was founded in 1837, most of the early building was around the mouth of the Chicago River, as can be seen on a map of the city's original 58 blocks. The overall grade of the city's central, built-up areas is relatively consistent with the natural flatness of its overall natural geography,…
Average elevation: 182 m
Moline
United States > Illinois > Rock Island County
Moline witnessed a continued population increase after World War II with the completion of "Molette", a subdivision of mass-produced starter homes selling for $5,000 each. Molette was the first Moline neighborhood produced on a mass scale and one of the largest single-unit housing projects in the Midwest at…
Average elevation: 193 m
Monroe County
The western part of the county on the Mississippi River is part of the American Bottom floodplain, while the eastern portion of the county is relatively flat and was originally prairie. The transition zone between has high bluffs of limestone and dolomite and has distinctive Karst topography with numerous…
Average elevation: 157 m
