Lexington is the second-most-populous city in the Commonwealth of Kentucky (after Louisville), and the 60th-most populous city in the United States. It is the county seat of Fayette County. By land area, it is the country's 30th-largest city. Lexington is known as the "Horse Capital of the World". It is within the state's Bluegrass region. Notable locations within the city include the Kentucky Horse Park, The Red Mile and Keeneland race courses, Rupp Arena, Central Bank Center, Transylvania University, the University of Kentucky, Bluegrass Community and Technical College, and the National Thoroughbred Racing Association (NTRA) Headquarters. As of the 2020 census the city's population was 322,570, anchoring a metropolitan area of 516,811 people and a combined statistical area of 747,919 people. Lexington is consolidated entirely within Fayette County, and vice versa. It has a nonpartisan mayor-council form of government, with 12 council districts and three members elected at large, with the highest vote-getter designated vice mayor.