Facts on County seats in Illinois

Chicago

is the third largest city in the United States by population, and the eighth most economically important city in the world.

10 facts about Chicago

Springfield

is the third and current capital of the US state of Illinois and the county seat of Sangamon County.

10 facts about Springfield

Peoria

is a city in and the county seat of Peoria County, Illinois, United States.

10 facts about Peoria

Rockford

is a city located on both banks of the Rock River in far northern Illinois.

10 facts about Rockford