In the United States, we use two different types of presidential elections. The elections form a two-step process and are used together to determine the winner. The first of these is the primary election. This election serves as a party nomination for the political office.
Springfield is the capital of the U.S. state of Illinois and the county seat of Sangamon County with a population of 116,250, as of the 2010 U.S. Census, making it the sixth most populated city in the state. It is the largest city in central Illinois.
The Office of Management and Budget has designated the three-county Champaign-Urbana area as one of its metropolitan statistical areas (the Champaign-Urbana, IL MSA), which are used for statistical purposes by the Census Bureau and other agencies. The area has a population of 231,891 as determined by the 2010 U.S. Census.