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London

Also Known As Londinium (the Roman-founded settlement from which London grew)
Europe

The capital and largest city of the United Kingdom, on the River Thames in southeastern England, and the seat of the UK Parliament and the Crown. The built-up area of Greater London is the largest in Western Europe, with a population of roughly 9.09 million as of 2024. In 1854 the physician John Snow traced a cholera outbreak in the Soho district to a single contaminated water pump on Broad Street, a founding episode of epidemiology conducted before germ theory itself was established.

Facts
Population
9,089,736 1
Corrected 2026-08-29 from an undated '2025 estimate' lead-section-cited figure (no population-year fact recorded) to the infobox's own precise figure, dated 2024 (Office for National Statistics Mid-Year Population Estimates, United Kingdom, June 2024).
Area (sq km)
1572 1
Founding Year
47 1
Roman founding as Londinium, per the infobox's own Established field.
Population Estimate Year
2024 1
Latitude
51.50722 degrees north 1
Longitude
0.1275 degrees west 1
Connections

Associated With

England, States or Territories

london is associated with england.

Source London (Wikipedia)
River Thames, Bodies of Water

London sits on the tidal Thames below Teddington Lock; the river was the reason the Romans founded the city where they did.

Source River Thames (Wikipedia)
Source London (Wikipedia)

Greater London is the largest urban area in the British Isles.

Source British Isles (Wikipedia)
United Kingdom, Countries

London is the capital and largest city of the United Kingdom.

Source Encyclopaedia Britannica
Source London (Wikipedia)

Capital Of

England, States or Territories

london is the capital of england.

Source London (Wikipedia)

London is the capital of the United Kingdom.

Source London (Wikipedia)

Long-Form Articles

In the Other Atlases
Sources
1. London (Wikipedia)
Wikimedia Foundation
  • Lead section
    with a population of 9.14 million people in 2025
  • Infobox
    Settled by Romans: AD 47; 1979 years ago (47), as Londinium
  • Infobox, coordinates
    51°30′26″N 0°7′39″W / 51.50722°N 0.12750°W
  • Infobox, Established
    Settled by Romans AD 47
  • Infobox, Population
    (2024) ... Total 9,089,736
  • Lead section, admin-division claim
    London is the capital and largest city of England and the United Kingdom, with a population of 9.14 million people in 2025.
  • Capital Of: United Kingdom, Lead section, capital fact
    London is the capital and largest city of England and the United Kingdom, with a population of 9.14 million people in 2025.
View the Source
Encyclopaedia Britannica
Encyclopaedia Britannica, Inc.View the Source
River Thames (Wikipedia)
Wikimedia FoundationAssociated With: River ThamesView the Source
British Isles (Wikipedia)
Wikimedia FoundationAssociated With: The British Isles, Lead section
Quote, Associated With: The British Isles, Lead section
The largest urban area by far is the Greater London Built-up Area with 9 million inhabitants.
View the Source
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