London metropolitan area

London metropolitan area
Skyline of Central London
Map of the London area, with the metropolitan area as defined by the London Travel to Work Area highlighted in red
Sovereign state United Kingdom
Country England
Area
 • Metro
3,443 sq mi (8,917 km2)
Population
 (2025)
 • Metro
15,100,000
 • Metro density4,300/sq mi (1,660/km2)
GDP
 • MetroUS$978 billion (nominal)
US$1.064 trillion (PPP)

The London metropolitan area is the metropolitan area of London, England. It has several definitions, including the London Travel to Work Area, and usually consists of the London urban area, settlements that share London's infrastructure, and places from which it is practicable to commute to work in London. It is also known as the London commuter belt, or Southeast metropolitan area.