Riverton is a village in Sangamon County, Illinois, United States. The population was 3,048 at the 2000 census. It is part of the Springfield, Illinois Metropolitan Statistical Area.
Riverton is located at 39°50′54″N 89°32′25″W / 39.84833°N 89.54028°W / 39.84833; -89.54028 (39.848305, -89.540166).
According to the United States Census Bureau, the village has a total area of 2.1 square miles (5.4 km²), of which, 2.0 square miles (5.3 km²) of it is land and 0.04 square miles (0.1 km²) of it (1.93%) is water.