Riverton is a village in Sangamon County, Illinois, United States. The population was 3,455 at the 2010 census, up from 3,062 in 2000. 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 2010 census, Riverton has a total area of 2.216 square miles (5.74 km), of which 2.18 square miles (5.65 km) (or 98.38%) is land and 0.036 square miles (0.09 km) (or 1.62%) is water.
As of the census of 2000, there were 3,048 people, 1,236 households, and 845 families residing in the village. The population density was 1,497.4 people per square mile (576.9/km²). There were 1,311 housing units at an average density of 644.1 per square mile (248.1/km²). The racial makeup of the village was 98.92% White, 0.10% African American, 0.16% Native American, 0.10% Asian, and 0.72% from two or more races. Hispanic or Latino of any race were 0.92% of the population.
There were 1,236 households out of which 36.1% had children under the age of 18 living with them, 51.9% were married couples living together, 12.6% had a female householder with no husband present, and 31.6% were non-families. 27.3% of all households were made up of individuals and 10.6% had someone living alone who was 65 years of age or older. The average household size was 2.47 and the average family size was 2.98.
In the village, the population was spread out with 27.3% under the age of 18, 7.7% from 18 to 24, 31.3% from 25 to 44, 22.8% from 45 to 64, and 10.9% who were 65 years of age or older. The median age was 35 years. For every 100 females, there were 93.0 males. For every 100 females age 18 and over, there were 88.8 males.
The median income for a household in the village was $45,531, and the median income for a family was $49,150. Males had a median income of $35,278 versus $26,421 for females. The per capita income for the village was $20,678. About 6.3% of families and 6.8% of the population were below the poverty line, including 8.7% of those under age 18 and 12.7% of those age 65 or over.