Springfield is the capital of the U.S. state of Illinois and the county seat of Sangamon County. The city’s population was 116,250 at the 2010 U.S. Census, which makes it the state’s sixth most-populous city, the second largest outside of the Chicago metropolitan area (after Rockford), and the largest in central Illinois. As of 2018, the city’s population was estimated to have decreased to 114,694, with just over 211,700 residents living in the Springfield Metropolitan Statistical Area, which includes Sangamon County and the adjacent Menard County.
Springfield is located at 39°41′54″N 89°37′11″W / 39.69833°N 89.61972°W / 39.69833; -89.61972 (39.6983146, −89.6195900). The city is at an elevation of 558 feet (170 m) above sea level. Located within the central section of Illinois, Springfield is 80 miles (130 km) northeast of St. Louis. The Champaign/Urbana area is to the east, Peoria is to the north, and Bloomington–Normal is to the northeast. Decatur is 40 miles (64 km) due east.
At the 2010 Census, 75.8% of the population was White, 18.5% Black or African American, 0.2% American Indian and Alaska Native, 2.2% Asian, and 2.6% of two or more races. 2.0% of Springfield’s population was of Hispanic or Latino origin (they may be of any race). Non-Hispanic Whites were 74.7% of the population in 2010, down from 87.6% in 1980.
As of the census of 2000, there were 111,454 people, 48,621 households, and 27,957 families residing in the city. The population density was 2,063.9 people per square mile (796.9/km²). There were 53,733 housing units at an average density of 995.0 per square mile (384.2/km²). The racial makeup of the city was 81.0% White, 15.3% African American, 0.2% Native American, 1.5% Asian, 0.1% Pacific Islander, 0.5% from other races, and 1.5% from two or more races. Hispanic or Latino of any race were 1.2% of the population.
There were 48,621 households, out of which 27.5% had children under the age of 18 living with them, 41.1% were married couples living together, 12.9% had a female householder with no husband present, and 42.5% were non-families. 36.1% of all households were made up of individuals and 11.7% had someone living alone who was 65 years of age or older. The average household size was 2.24 and the average family size was 2.94.
In the city, the population was spread out, with 28.0% under the age of 18, 8.8% from 18 to 24, 29.8% from 25 to 44, 23.0% from 45 to 64, and 14.4% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 88.6 males. For every 100 females age 18 and over, there were 86.6 males.
The median income for a household in the city was $39,388, and the median income for a family was $51,298. Families with children had a higher income of about $69,437. Males had a median income of $36,864 versus $28,867 for females. The per capita income for the city was $23,324. About 8.4% of families and 11.7% of the population were below the poverty line, including 17.3% of those under age 18 and 7.7% of those age 65 or over.