page_title: London metropolitan area
section_title: Travel to Work Area
hierarchical_section_title: London metropolitan area / Definitions / Travel to Work Area
caption_attribution_description: English: Map of London TTWA 2001
context_page_description: The London metropolitan area includes London and its surrounding commuter zone. It is also known as the London commuter belt, or Southeast metropolitan area.
  As of September 2019, the London metropolitan area was the most populated metropolis in the European Union with a population of 14,372,596.
context_section_description: The London Travel to Work Area, defined by the Office for National Statistics as the area for which "of the resident economically active population, at least 75% actually work in the area, and also, that of everyone working in the area, at least 75% actually live in the area." has a population of 9,294,800 (2005 estimate).
caption: The London Travel to Work Area in 2001 (dark blue), with the administrative boundary of Greater London shown.
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