Southampton is a city in Hampshire, South East England, 70 mi south-west of London and 15 mi north-west of Portsmouth. A major port, and close to the New Forest, it lies at the northernmost point of Southampton Water, at the confluence of the River Test and Itchen, with the River Hamble joining to the south. The unitary authority had a population of 253,651 at the 2011 census. A resident of Southampton is called a Sotonian.