Edwardsville is a city in Madison County, Illinois, United States. As of the 2010 census, the population was 24,293. It is the county seat of Madison County. The city was named in honor of Ninian Edwards, then Governor of the Illinois Territory.
According to the 2010 census, Edwardsville has an area of 20.165 square miles (52.23 km), of which 19.56 square miles (50.66 km) (or 97%) is land and 0.605 square miles (1.57 km) (or 3%) is water.
As of the census of 2005, 24,047 people, 7,975 households, and 5,199 families resided in the city. The population density was 1,549.2 people per square mile (598.2/km). There were 8,331 housing units at an average density of 600.6 per square mile (231.9/km). The city’s racial makeup was 87.70% White, 8.66% African American, 1.69% Asian, 0.28% Native American, 0.03% Pacific Islander, 0.29% from other races, and 1.35% from two or more races. Hispanic or Latino of any race were 1.00% of the population.
There were 10,000 households, out of which 32.8% had children under the age of 18 living with them, 52.4% were married couples living together, 9.9% had a female householder with no husband present, and 34.8% were non-families. 25.9% of all households were made up of individuals, and 8.7% had someone living alone who was 65 years of age or older. The average household size was 2.44, and the average family size was 2.99.
The population was spread out with 22.6% under the age of 18, 16.0% from 18 to 24, 29.4% from 25 to 44, 20.3% from 45 to 64, and 11.7% who were 65 years of age or older. The median age was 33 years. For every 100 females, there were 87.5 males. For every 100 females age 18 and over, there were 83.3 males.
The city’s median household income was $50,921, and the median family income was $65,555. Males had a median income of $47,045 versus $29,280 for females. The city’s per capita income was $26,510. About 5.0% of families and 8.6% of the population were below the poverty line, including 7.3% of those under age 18 and 6.0% of those age 65 or over.