South West England, or the South West of England, is one of nine official regions of England. It consists of the counties of Bristol, Cornwall, Dorset, Devon, Gloucestershire, Somerset and Wiltshire. Cities and large towns in the region include Bath, Bristol, Bournemouth, Cheltenham, Exeter, Gloucester, Plymouth and Swindon. It is geographically the largest of the nine regions of England covering 9,200 square miles, but the third-least populous, with approximately five million residents.