Brighton is a city on the south coast of England. It was called "Brighthelmstone". It is in the county of East Sussex. In 2000, it joined Hove to become the city of Brighton & Hove. Historically, Brighton forms the main part of the Brighton/Worthing/Littlehampton conurbation, with 474,485 inhabitants (2011 census). This is England's 12th largest conurbation, and the mostly densely populated area outside London.