Danville is a city in and the county seat of Vermilion County, Illinois. As of the 2010 census, its population was 33,027. As of 2019, the population was an estimated 30,479.

Decatur is the largest city and the county seat of Macon County in the U.S. state of Illinois, with a population of 70,522 as of the 2020 Census. The city was founded in 1829 and is situated along the Sangamon River and Lake Decatur in Central Illinois. Decatur is the seventeenth-most populous city in Illinois.The city is home of private Millikin University and public Richland Community College. Decatur has an economy based on industrial and agricultural commodity processing and production, including the North American headquarters of agricultural conglomerate Archer Daniels Midland, international agribusiness Tate & Lyle's largest corn-processing plant, and the designing and manufacturing facilities for Caterpillar Inc.'s wheel-tractor scrapers, compactors, large wheel loaders, mining class motor grader, off-highway trucks, and large mining trucks.

Shelbyville is a city in Shelby County, Illinois, United States, along the Kaskaskia River. As of the 2010 census, the population was at 4,700. It is the county seat of Shelby County. HSHS Good Shepherd Hospital, located in town, is the county's only hospital. Shelbyville is also home to Chautauqua Auditorium.

Logan County is a county located in the U.S. state of Illinois. According to the 2010 census, it had a population of 30,305. Its county seat is Lincoln.Logan County comprises the Lincoln, IL Micropolitan Statistical Area, which is included in the Springfield-Jacksonville-Lincoln, IL Combined Statistical Area.