Bristol (/ˈbrɪstəl/ ) is a city and ceremonial county in South West England. It is located on the River Avon, and bordered by Gloucestershire to the north and Somerset to the south with a short coastline on the Bristol Channel to the west. The county includes the majority of the Bristol conurbation, however, the urban area of the city extends into the neighbouring districts of South Gloucestershire, Bath and North East Somerset, and North Somerset.
The county is almost entirely urbanised and had an estimated population of 494,399 in 2024, making Bristol the most populous city in the region. For local government purposes the county is a unitary authority area governed by Bristol City Council. The council is a member of the West of England Combined Authority, which allows it to collaborate with South Gloucestershire Council and Bath and North East Somerset Council.