Bloomington is a city in McLean County, Illinois, United States and the county seat. It is adjacent to Normal, Illinois, and is the more populous of the two principal municipalities of the Bloomington-Normal metropolitan area. When mentioned together, they are known as the "Twin Cities", "Bloomington-Normal", "B-N", "Blo-No," or "BNorm." On its own, Bloomington is known affectionately as "Bloomtown" or "B-Town", and residents are "Bloomies". The mayor of Bloomington is Steve Stockton.
The 2010 census showed the city had a population of 76,610, making it the 12th most populated city in Illinois, and the fifth-most populous city in the state outside of the Chicago Metropolitan Area.
Bloomington is located at 40°29′03″N 88°59′37″W. The city is at an elevation of 797 feet (243 m) above sea level. According to the United States Census Bureau, the city has a total area of 22.5 square miles (58.3 km²), all of it land.