South West England is one of nine official regions of England. It is the largest such region in area, covering 9,200 square miles (23,828 km2) and comprising Bristol, Gloucestershire, Somerset, Dorset, Wiltshire, Devon, Cornwall and the Isles of Scilly. Five million people live in South West England.
The region includes the area often known as the West Country and much of the ancient kingdom of Wessex. The size of the region is shown by the fact that the northern part of Gloucestershire, near Chipping Campden, is as close to the Scottish border as it is to the tip of Cornwall. The largest city is Bristol. Other major urban centres include Plymouth, Swindon, Gloucester, Exeter, Bath, and the South East Dorset conurbation of Bournemouth, Poole and Christchurch. All counties either include at least one unitary authority or are unitary authorities themselves, as is the case with Cornwall and the Unitary Authority of Bristol. The region has 8 cities: Salisbury, Bath, Wells, Bristol, Gloucester, Exeter, Plymouth and Truro. It includes two National Parks and four World Heritage Sites, including Stonehenge and the Jurassic Coast.
Devon (pron.: //; archaically known as Devonshire) is a county of England, reaching from the Bristol Channel in the north to the English Channel in the south. It is a part of South West England, and bounded by Cornwall to the west, Somerset to the northeast, and Dorset to the east. The City of Exeter is the county town; seven other districts of East Devon, Mid Devon, North Devon, South Hams, Teignbridge, Torridge, and West Devon are under the jurisdiction of Devon County Council; Plymouth and Torbay are each a part of Devon but administered as unitary authorities. Combined as a ceremonial county, Devon's area is 6,707 km2 (2,590 square miles), and its population is about 1.1 million.