Springfield is located in Sangamon County. About 114,394 people live here (as of 2020). Between 2010 and 2020, the population declined from 116,250 to 114,394. The region is at 182 meters above sea level. The area covers about 171.9 square kilometers. There are about 7.430 streets in Springfield. The region was founded in 1821. The postal codes are 62701–62796. The dialing code is 217. Springfield is capital city of the U.S. state of Illinois and county seat of Sangamon County. Among other things, Springfield has public Transport, hotels, restaurants, cafés, supermarkets, clothing Stores, museums, schools, banks, hairdressers, dentists and pharmacies. More information at
springfield.il.us.