Southampton (/saʊθˈ(h)æmptən/) is a port city in the ceremonial county of Hampshire in southern England. It is located approximately 70 mi (110 km) south-west of London and 15 mi (24 km) west of Portsmouth. The city forms part of the South Hampshire built-up area, which also covers Portsmouth and the towns of Havant, Waterlooville, Eastleigh, Fareham and Gosport. 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.