() is the county seat of Champaign County, Illinois, United States. As of the 2007 population estimates, the population was 39,484. The city was named after Urbana, Ohio.
According to the United States Census Bureau, the city has a total area of 10.5 square miles (27.2 km²), of which 0.10% is water body.
Urbana shares a border with the neighboring city of Champaign. The site of the main campus of the University of Illinois straddles the border between both cities. Together, these two cities are often referred to as
(the more common usage, due to the larger size of Champaign) or the nickname "Chambana". Urbana, Champaign, and the nearby village of Savoy form the Champaign-Urbana Metropolitan Area.