London - The Capital of United Kingdom

Population
9,648,110
Language
English
Continent
Europe
Since
1066
Eco Ranking
5/195

Source: Environmental Performance Index 2024.

About London

London became the seat of English royal and governmental power following William the Conqueror's victory at the Battle of Hastings in 1066 and his subsequent coronation at Westminster Abbey. Though Roman Londinium had existed for a millennium prior, it was the Norman settlement that cemented the city's political primacy. The Palace of Westminster has housed Parliament since the 13th century, making London one of the longest-serving continuous capitals of any major state. The city served as the administrative center of the British Empire, at its peak the largest empire in world history, directing governance over territories covering roughly a quarter of the earth's land surface. The United Kingdom is a constitutional monarchy and parliamentary democracy: the monarch is head of state, but executive power rests with the prime minister and cabinet, who govern from Downing Street. Parliament consists of the elected House of Commons and the appointed House of Lords. The Supreme Court, established in 2009 to replace the House of Lords' judicial function, sits in Westminster. Greater London's population of 9.6 million exceeds the combined populations of Scotland and Wales. London is the only city to have hosted the modern Olympic Games three times: in 1908, 1948, and 2012.

About United Kingdom

The United Kingdom of Great Britain and Northern Ireland is a constitutional monarchy comprising England, Scotland, Wales, and Northern Ireland. Parliament in Westminster is sovereign, though Scotland, Wales, and Northern Ireland each have devolved legislatures with varying powers. The UK left the European Union on 31 January 2020 following the 2016 Brexit referendum. It is a permanent member of the UN Security Council and a founding member of NATO. The monarch is also head of state of 14 other Commonwealth realms.

View London on the map

View London - The Capital of United Kingdom on the map

Flight time from London to other capitals

CityDistance (km)Flight Time
Paris3000h 21m
Rome14001h 39m
Abu Dhabi55006h 28m
Washington, D.C.59006h 56m
Tokyo960011h 18m
Cape Town970011h 25m
Singapore1080012h 42m
Buenos Aires1110013h 4m
Canberra1700020h 0m

Capitals with similar population to London

CityPopulation
Lima10,719,000
Cairo10,230,350
Seoul9,720,846
London9,648,110
Dhaka9,540,000
Tehran9,259,009
Mexico City9,209,944

Capitals with similar eco ranking to London

Source: Environmental Performance Index 2024.

Frequently Asked Questions

  • When did London become the capital of England?

    London's status as capital was firmly established following the Norman Conquest of 1066, when William the Conqueror was crowned at Westminster Abbey and established his court there. While London had been the most important city in Anglo-Saxon England, Winchester had shared administrative importance. After 1066, London and Westminster became the uncontested seat of government.

  • Where does the UK government actually operate from in London?

    The UK government operates from several locations in central London. The prime minister and cabinet work from 10 Downing Street in Westminster. Parliament meets in the Palace of Westminster. The monarch's official London residence is Buckingham Palace. The Supreme Court is located in Middlesex Guildhall, also in Westminster. Government departments are spread across Whitehall and surrounding areas.

  • Is London the largest city in the United Kingdom?

    Yes, London is overwhelmingly the largest city in the UK. Greater London has approximately 9.6 million residents, compared to around 1.7 million in Birmingham (the second largest city). London accounts for roughly 14 percent of the UK's total population and generates approximately 25 percent of the country's GDP.

  • How does devolution affect London's role as capital?

    While London houses the UK Parliament, Scotland, Wales, and Northern Ireland each have their own devolved legislatures: the Scottish Parliament in Edinburgh, the Senedd in Cardiff, and the Northern Ireland Assembly in Stormont. These bodies have authority over a range of domestic matters. England alone has no devolved parliament and is governed directly from Westminster.

  • Was London always the capital of the British Empire?

    Yes. London served as the capital of successive English, then British, imperial structures from the 17th century onward. As the British Empire expanded through the 18th and 19th centuries to become the largest empire in world history, London functioned as its political, financial, and communications hub. The Empire's formal dissolution occurred gradually between the late 1940s and the 1990s.

Sights and landmarks

London has four UNESCO World Heritage Sites, including the Tower of London from 1078 with the British Crown Jewels, the Palace of Westminster, Greenwich and the Royal Botanic Gardens Kew. The British Museum, founded in 1753 as the world's first public national museum, holds the Rosetta Stone and the Parthenon Marbles, among others. St. Paul's Cathedral by Christopher Wren was completed in 1710 after the Great Fire of 1666. Buckingham Palace has served as the official London residence of the British monarch since 1837, with the annual Trooping the Colour parade held in honour of the sovereign's birthday. Big Ben and the Houses of Parliament on the Thames form London's most photographed buildings. Tate Modern in a former power station houses modern art.

Climate and best time to visit

London has a temperate oceanic climate (Cfb) softened by the Gulf Stream and the Thames estuary effect, making it significantly milder than other cities at the same latitude. July is pleasant with temperatures between 14 and 24 degrees Celsius, though heat waves above 35 degrees have become more common since the 2000s (40.2 degrees recorded in July 2022). January ranges between 3 and 8 degrees; snow falls a few days per year but rarely settles. Annual rainfall is just 620 millimetres — less than Amsterdam or Berlin — though the city is known for overcast skies and drizzle. The best time to visit is May to September.

Economy

London, alongside New York, is one of the world's leading global financial centres, with the City of London and the newer Canary Wharf as core sub-centres. The London Stock Exchange is one of the world's largest exchanges; the Lloyd's market is the most important global hub for insurance and reinsurance. Major employers include HSBC, Barclays, BP and the Bank of England (founded in 1694). The city generates around 23% of UK GDP. After Brexit (formally completed in January 2020), London lost jobs to Amsterdam, Paris and Frankfurt, particularly in trading of euro-denominated derivatives, but remained the dominant European financial centre by market volume.
London, capital of United Kingdom
London, capital of United Kingdom

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