The Borough of Chorley is a local government district with borough status in Lancashire, England. It is named after its largest settlement, the town of Chorley.CreationThe present Borough of Chorley was formed on 1 April 1974 by the merger of the then existing municipal borough of Chorley with the urban districts of Adlington and Withnell, and Chorley Rural District.ParishesWith exception of the town of Chorley, which remains an unparished area, the borough has twenty-three civil parishes: Adlington, Anderton, Anglezarke, Astley Village, Bretherton, Brindle, Charnock Richard, Clayton-le-Woods, Coppull, Croston, Cuerden, Eccleston, Euxton, Heapey, Heath Charnock, Heskin, Hoghton, Mawdesley, Rivington, Ulnes Walton, Wheelton, Whittle-le-Woods, and Withnell.