Urbana is a city in and the county seat of Champaign County, Illinois, United States.
The population was 41,250 at the 2010 census. Urbana is the tenth-most populous city in Illinois outside of the Chicago metropolitan area. It is included in the Champaign–Urbana metropolitan area. Urbana is notable for sharing the campus of the University of Illinois at Urbana–Champaign with its sister city of Champaign.