population of the metro springfield illinois
The 2016 Springfield Metro Area, Illinois, population is 211,156. There are 179 people per square mile (population density). The median age is 39.9. The US median is 37.4. 50.46% of people in Springfield Metro Area, Illinois, are married. 13.16% are divorced. The average household size is 2.35 people. 28.56% of people are married, with children. 18.07% have children, but are single.