The City of Bradford is a local government district of West Yorkshire, England, with the status of a city and metropolitan borough. It is named after its largest settlement, Bradford, but covers a far larger area which includes the towns of Keighley, Shipley, Bingley, Ilkley, Haworth, Silsden and Denholme. Bradford has a population of 528,155, making it the fourth-most populous metropolitan district and the sixth-most populous local authority district in England. It forms part of the West Yorkshire Urban Area conurbation which in 2001 had a population of 1.5 million and the city is part of the Leeds-Bradford Larger Urban Zone (LUZ), which, with a population of 2,393,300, is the third largest in the United Kingdom after London and Manchester.