Chart and table of population level and growth rate for the London, UK metro area from 1950 to 2025. United Nations population projections are also included through the year 2035.

The population of the United Kingdom in 2023 was estimated to be approximately 68.3 million in 2023, with almost 9.48 million people living in South East England. London had the next highest population, at over 8.9 million people, followed by the North West England at 7.6 million. With the UK's population generally concentrated in England, most English regions have larger populations than the constituent countries of Scotland, Wales, and Northern Ireland, which had populations of 5.5 million, 3.16 million, and 1.92 million respectively. English counties and cities The United Kingdom is a patchwork of various regional units, within England the largest of these are the regions shown here, which show how London, along with the rest of South East England had around 18 million people living there in this year. The next significant regional units in England are the 47 metropolitan and ceremonial counties. After London, the metropolitan counties of the West Midlands, Greater Manchester, and West Yorkshire were the biggest of these counties, due to covering the large urban areas of Birmingham, Manchester, and Leeds respectively. Regional divisions in Scotland, Wales and Northern Ireland The smaller countries that comprise the United Kingdom each have different local subdivisions. Within Scotland these are called council areas whereas in Wales the main regional units are called unitary authorities. Scotland's largest Council Area by population is that of Glasgow City at over 622,000, while in Wales, it was the Cardiff Unitary Authority at around 372,000. Northern Ireland, on the other hand, has eleven local government districts, the largest of which is Belfast with a population of around 348,000.

There were 827,489 people living in London who were aged between 25 and 29 in 2023, the most of any group. The four largest age cohorts were all clustered between the ages of 25 and 44.

In 2023, Croydon had the largest population among London's 32 boroughs at 397,741, while Kensington and Chelsea had the smallest population, at 147,460.

Demographics of SARS-CoV-2 positive patients in a Central London population (March 1 –April 30, 2020).

As of 2023, the population density in London was by far the highest number of people per square km in the UK, at 5,690. Of the other regions and countries which constitute the United Kingdom, North West England was the next most densely populated area at 533 people per square kilometer. Scotland, by contrast, is the most sparsely populated country or region in the United Kingdom, with only 70 people per square kilometer. UK population over 67 million According to the official mid-year population estimate, the population of the United Kingdom was just almost 67.6 million in 2022. Most of the population lived in England, where an estimated 57.1 million people resided, followed by Scotland at 5.44 million, Wales at 3.13 million and finally Northern Ireland at just over 1.9 million. Within England, the South East was the region with the highest population at almost 9.38 million, followed by the London region at around 8.8 million. In terms of urban areas, Greater London is the largest city in the United Kingdom, followed by Greater Manchester and Birmingham in the North West and West Midlands regions of England. London calling London's huge size in relation to other UK cities is also reflected by its economic performance. In 2021, London's GDP was approximately 494 billion British pounds, almost a quarter of UK GDP overall. In terms of GDP per capita, Londoners had a GDP per head of 56,431 pounds, compared with an average of 33,224 for the country as a whole. Productivity, expressed as by output per hour worked, was also far higher in London than the rest of the country. In 2021, London was around 33.2 percent more productive than the rest of the country, with South East England the only other region where productivity was higher than the national average.

IMPORTANT NOTE: These projections have been superceded, please see https://data.london.gov.uk/demography/ for the latest GLA projections. The 2013 round of projections featured a large number of variants including: Three variants of trend-based projection (Central, High, Low) that used different migration assumptions and which were used to inform the Strategic Housing Market Assessment (SHMA) and Further Alterations to the London Plan (FALP). A further trend-based projection that took the migration assumptions from the Central projection, but updated the fertility assumptions to be in line with assumptions taken from ONS’s 2012-based National Population Projections. Two variants of development-linked projections using development trajectories derived from the 2013 Strategic Housing Land Availability Assessment. These variants make use of different methodologies to incorporate development data into the population projections. Two Updates were released as part of the 2013 round. These detailed results and methodologies for the initial projection releases. The capped-household size model was released subsequently in response to demand from colleagues in some local authorities. An explanation of this and other methodologies is presented in the Technical Note. For general use, the GLA advises the use of the SHLAA-based projection using the capped household size model. This gives rise to a broadly similar total population for London as the Central trend-based projection used in the SHMA/FALP, but with a geographical distribution of population growth that better reflects likely future development. For the 2013 round, the decision was made to release the results of the ward-based projections by single year of age and gender, rather than in five-year age bands as in previous years. This change was to allow users to aggregate to the age bands of interest to them. It is important to note that the provision of these projections by single year of age and at unit level is to facilitate their subsequent use and is not an indication of their level of accuracy. Users should be aware that small area population estimates and projections are subject to high levels of uncertainty and potential inaccuracy. The custom-age population tool is here .

London was by far the largest urban agglomeration in the United Kingdom in 2023, with an estimated population of 9.65 million people, more than three times as large as Manchester, the UK’s second-biggest urban agglomeration. The agglomerations of Birmingham and Leeds / Bradford had the third and fourth-largest populations respectively, while the biggest city in Scotland, Glasgow, was the fifth largest. Largest cities in Europe Two cities in Europe had larger urban areas than London, with the Russian capital Moscow having a population of almost 12.7 million. The city of Paris, located just over 200 miles away from London, was the second-largest city in Europe, with a population of more than 11.2 million people. Paris was followed by London in terms of population-size, and then by the Spanish cities of Madrid and Barcelona, at 6.75 million and 5.68 million people respectively. Russia's second-biggest city; St. Petersburg had a population of 5.56 million, followed by Rome at 4.3 million, and Berlin at 3.5 million. London’s population growth Throughout the 1980s, the population of London fluctuated from a high of 6.81 million people in 1981 to a low of 6.73 million inhabitants in 1988. During the 1990s, the population of London increased once again, growing from 6.8 million at the start of the decade to 7.15 million by 1999. London's population has continued to grow since the turn of the century, reaching a peak of 8.96 million people in 2019, and is forecast to reach 9.8 million by 2043.

The capital city of England, London has a population of approximately nine million residents and by 2041, the population of London is estimated to exceed 10 million individuals. To house them, the sprawling city has a stock of approximately 3.8 million dwellings. Annually, there are between 15,000 and 25,000 housing construction completions. Average house prices The average house price for a first-time buyer in London was over 492,000 British pounds in 2023, more than any other city in the UK. Overall, it was more affordable to buy a newly built property than an existing one, a price gap of over 100,000 British pounds. Average rental costs Unsurprisingly, London also topped the ranking as the most expensive region for renters. The average cost of rent exceeding 2,000 British pounds in 2024. Certain Boroughs in London will set back the average renter more than others. Westminster, Lambeth, and Hammersmith, Fulham, Kensington and Chelsea were the most expensive boroughs based on the average monthly rent.

Any internet was the most used platform for news consumption in the United Kingdom among all nations in 2024. However, television was also a very popular choice and could soon overtake internet as the main news source. Meanwhile, social media was more popular in Scotland and England than in Wales or Northern Ireland. Where do TV audiences get their news? BBC One remained the most popular TV news channel in the UK that year, with an audience reach of 75 percent. BBC One, which is part of the television service portfolio of the British Broadcasting Corporation (BBC), has held the lion’s share of TV news watching hours in the UK for over a decade. Online news platforms are stealing the show While television remains the leading news source among adults, younger audiences primarily turn to the internet for news consumption. According to a recent survey, almost 80 percent of UK news consumers between the ages of 18 to 24 considered the internet their leading news platform, and as of 2020, roughly 70 percent of the UK population read or downloaded news content online. Among those who got their news coverage from online sources, BBC News stood out as the leading online news brand accessed in the UK that year.

There were 938,020 crimes recorded in London in the 2023/24 reporting year, compared with 887,870 in the previous year. During this time period, crime in London increased steadily, with the figure of 912,487 in 2019/20 a previous peak when there were approximately 102.4 crimes per 1,000 people taking place in the UK capital, compared with 105.8 crimes per 1,000 people in the most recent year. What types of crime are rising? Compared with crime levels before the COVID-19 pandemic, some types of crime have yet to reach the same levels they were at in the 2019/20 reporting year. The number of criminal offences related to theft and drugs, are slightly down in 2023/24 when compared with pre-pandemic trends. On the other hand, the number of violent crimes reached a peak of 252,545 offences in 2023/24, while the number of sexual offences in London since 2021/22 has been far higher than in previous years. London compared to the rest of UK While the UK capital receives extensive coverage for its crime problems, the increase in crime there is part of a wider trend afflicting the rest of the country. The overall crime rate for England and Wales in 2023/24 was 89.7 crimes per 1,000 people, slightly lower than in 2022/23, when the crime rate was the highest since 2006/07. Additionally the Metropolitan Police, the police service responsible for policing Greater London had the sixth-highest crime rate among police force areas with Cleveland police force in North East England having the highest.