phone number: fax number: emergency response program: 928-428-0110: 928-428-8074: public health: 928-428-0110: 928-428-8074
Springfield, Illinois. Springfield is the capital of the U.S. state of Illinois and the county seat of Sangamon County. The city's population of 116,250 as of the 2010 U.S. Census makes it the state's sixth most populous city. It is the largest city in central Illinois.
The Springfield Metropolitan Statistical Area, as defined by the United States Census Bureau, is an area consisting of two counties in Central Illinois, anchored by the city of Springfield. As of the 2000 census, the MSA had a population of 201,437 (though a July 1, 2009 estimate placed the population at 208,182). Springfield is south of Peoria, Illinois, Pekin, Illinois, and Lincoln, Illinois; southwest of Bloomington, Illinois and Champaign, Illinois; and west of Decatur, Illinois. The southern portion of the Springfield metropolitan area is north of the Metro-East, the Southern Illinois portion of the Greater St. Louis area.