Chichester is a local government district in West Sussex, England. It is named after the city of Chichester, which is its largest settlement and where the council is based. The district includes the towns of Midhurst, Petworth and Selsey and surrounding rural areas, including many villages. The district includes part of the South Downs National Park, and Chichester Harbour is a designated Area of Outstanding Natural Beauty. At the 2021 census the district had a population of 124,531.