Annual historical data for UK residents by broad country of birth and citizenship groups, broken down by UK country, local authority, unitary authority, metropolitan and London boroughs, and counties.

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

The population of London was approximately 8.9 million in 2023, an increase of over two million people when compared with the early 1980s. Throughout the 1980s, the population of the United Kingdom's capital grew at a relatively slow rate, before accelerating to a much faster rate in the 1990s. London is by far the largest city / urban agglomeration in the United Kingdom, more than three times larger than the next largest cities of Manchester and Birmingham. London’s forecasted population is expected to continue growing at much the same pace it has been growing since the mid-1990s and reach almost 9.8 million by 2042. London boroughs As of 2022, the London borough with the highest population was Croydon, at approximately 392,224, followed by Barnet at 389,101. Overall, London is divided into 33 different boroughs, with London's historic center, the City of London having by far the smallest population, at just 10,847. Residents of the City of London, however, have the highest average median weekly earnings among all of London's boroughs, at 1,138 pounds per week, compared with just 588 pounds per week in Redbridge, the lowest average weekly earnings among London boroughs. While the overall unemployment rate for London was 4.3 percent in early 2023, this ranged from 6.8 percent in Brent, to just 2.3 percent in Kingston upon Thames.
Economic imbalance Aside from being the UK's largest city in terms of population, London is also undoubtedly the UK's cultural, political and economic center. As of 2021, the GDP of Greater London was approximately 496.4 billion British pounds, just over 23 percent of the UK's overall GDP. In the same year, GDP per person in London was 56,431 pounds compared with the UK average of 31,947 pounds. Additionally, productivity in London is far higher than the UK average. As measured by output per hour worked, London was 33.2 percent more productive than the rest of the UK.

Estimates of London's population between 1801 and 2001 (persons present 1801 to 1991 and residents for 2001 onwards) derived from historic Census data.

Sources: years to 1971 - Greater London Council Research Memorandum 413, The Changing Population of the London Boroughs; 1981 Census Small Area Statistics, Table 1; 1991 Census Small Area Statistics, Table 1. Figure for Year-1939 is a mid-year estimate for the year 1939. Figure for Year-2001 onwards is the number of residents because the number of persons present is not available from 2001. Note that totals for Greater London may not match due to rounding errors. Figures are estimates to the nearest thousand.

Between 1500 and 1800, London grew to be the largest city in Western Europe, with its population growing almost 22 times larger in this period. London would eventually overtake Constantinople as Europe's largest in the 1700s, before becoming the largest city in the world (ahead of Beijing) in the early-1800s.

The most populous cities in this period were the capitals of European empires, with Paris, Amsterdam, and Vienna growing to become the largest cities, alongside the likes of Lisbon and Madrid in Iberia, and Naples or Venice in Italy. Many of northwestern Europe's largest cities in 1500 would eventually be overtaken by others not shown here, such as the port cities of Hamburg, Marseilles or Rotterdam, or more industrial cities such as Berlin, Birmingham, and Munich.

The mid-year estimates refer to the population on 30 June of the reference year and are produced in line with the standard United Nations (UN) definition for population estimates. They are the official set of population estimates for the UK and its constituent countries, the regions and counties of England, and local authorities and their equivalents.

In 2023, the population of the United Kingdom reached 68.3 million, compared with 67.6 million in 2022. The UK population has more than doubled since 1871 when just under 31.5 million lived in the UK and has grown by around 8.2 million since the start of the twenty-first century. For most of the twentieth century, the UK population steadily increased, with two noticeable drops in population occurring during World War One (1914-1918) and in World War Two (1939-1945). Demographic trends in postwar Britain After World War Two, Britain and many other countries in the Western world experienced a 'baby boom,' with a postwar peak of 1.02 million live births in 1947. Although the number of births fell between 1948 and 1955, they increased again between the mid-1950s and mid-1960s, with more than one million people born in 1964. Since 1964, however, the UK birth rate has fallen from 18.8 births per 1,000 people to a low of just 10.2 in 2020. As a result, the UK population has gotten significantly older, with the country's median age increasing from 37.9 years in 2001 to 40.7 years in 2022. What are the most populated areas of the UK? The vast majority of people in the UK live in England, which had a population of 57.7 million people in 2023. By comparison, Scotland, Wales, and Northern Ireland had populations of 5.44 million, 3.13 million, and 1.9 million, respectively. Within England, South East England had the largest population, at over 9.38 million, followed by the UK's vast capital city of London, at 8.8 million. London is far larger than any other UK city in terms of urban agglomeration, with just four other cities; Manchester, Birmingham, Leeds, and Glasgow, boasting populations that exceed one million people.

Abstract copyright UK Data Service and data collection copyright owner.

The Great Britain Historical Database has been assembled as part of the ongoing Great Britain Historical GIS Project. The project aims to trace the emergence of the north-south divide in Britain and to provide a synoptic view of the human geography of Britain at sub-county scales. Further information about the project is available on A Vision of Britain webpages, where users can browse the database's documentation system online.

These data were originally collected by the Censuses of Population for England and Wales, and for Scotland. They were computerised by the Great Britain Historical GIS Project and its collaborators.

The census has gathered data on "occupations", meaning individuals' roles in the workplace, since the first household enumeration in 1841, and this collection includes most of the published results. However, how the results were classified varied greatly: for 1841, there is simply an alphabetical list of individual occupations, in 1851 the most basic classification was into workers in animal, vegetable and minerals, and so on. Further, the more detailed the occupational classification used, space considerations tended to require a less detailed geography; or, sometimes, the use of an abridged classification for small towns and rural areas; or even different tables and classifications for men and for women. There are consequently multiple datasets for some years.

Latest edition information

For the second edition (October 2022), the data and documentation have been revised.

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Occupations, meaning self-described roles in the workplace, tabulated by gender using a variety of occupational classifications. Note that the early classifications often mingle notions of social status. From 1931 onwards these tables also include counts of the unemployed.

Please note: this study does not include information on named individuals and would therefore not be useful for personal family history research.

National and subnational mid-year population estimates for the UK and its constituent countries by administrative area, age and sex (including components of population change, median age and population density).

As of 2020, 131 thousand Italians were living in London. From 2015 to 2017, the number of Italian citizens who lived in the English Capital increased steadily. However, the Italian population living in London fell between 2018 and 2019. Nonetheless, the United Kingdom is the most popular destination country among Italian emigrants. During 2019, about 19 percent of all Italians who moved abroad notably chose the United Kingdom.

Student migration

The United Kingdom is a very common destination among young Italians in particular. In addition, a large percentage of emigrants who moved to the United Kingdom achieved a higher education. Specifically, 31 percent of Italians who live in the United Kingdom hold a university degree. However, the countries with most Italian emigrants holding a university degree are Brazil, Ireland, and the United States.

Historical migration of Italians

Currently, Argentina has the largest Italian population living abroad. Historically, Argentina was one of the most important destinations of Italian emigrants, especially during the nineteenth and twentieth centuries. Currently, Argentina ranks only tenth among the main destination countries of Italians. The most common destinations are, together with the United Kingdom, Germany and France.

In 2023, the urban population of the United Kingdom was approximately 57.6 million, while the rural population was around 10.5 million.

Abstract copyright UK Data Service and data collection copyright owner.

The Great Britain Historical Database has been assembled as part of the ongoing Great Britain Historical GIS Project. The project aims to trace the emergence of the north-south divide in Britain and to provide a synoptic view of the human geography of Britain at sub-county scales. Further information about the project is available on A Vision of Britain webpages, where users can browse the database's documentation system online.

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Registration District Population Totals, 1851-1911 according to Decennial Supplements and Censuses reports.

Inter-censal Population Changes (births, marriages, deaths) for Registration Districts, 1851-1911 considering boundary changes.

Inter-censal population changes for Twentieth Century Local Government Districts arranged by sex.

Please note: this study does not include information on named individuals and would therefore not be useful for personal family history research.

Abstract copyright UK Data Service and data collection copyright owner.

The Great Britain Historical Database has been assembled as part of the ongoing Great Britain Historical GIS Project. The project aims to trace the emergence of the north-south divide in Britain and to provide a synoptic view of the human geography of Britain at sub-county scales. Further information about the project is available on A Vision of Britain webpages, where users can browse the database's documentation system online.

These data were originally published in the reports of the Registrar-General for England and Wales. They were computerised by the Great Britain Historical GIS Project and its collaborators. They form part of the Great Britain Historical Database, which contains a wide range of geographically-located statistics, selected to trace the emergence of the north-south divide in Britain and to provide a synoptic view of the human geography of Britain, generally at sub-county scales.

This study mainly comprises data from the RG's Annual Reports, with some data from the Quarterly Returns. A very extensive transcription from the Decennial Supplements forms a separate study.

In this pre-1911 period, the main reporting units were approximately 630 Registration Districts, grouped into Registration Counties and subdivided into around 2,000 Registration sub-Districts.

Latest edition information

For the second edition (December 2022) the previous data and documentation files were replaced with new versions, and access conditions were changed from safeguarded to open access.

Main Topics:

Annual counts of births and deaths for all Registration Districts in all years 1850 to 1910, with marriages for some years.

Annual cause-of-death data for all Registration Districts in all years, 1856 to 1910. The causes of death focus on epidemic diseases.

Annual age-specific mortality data for all Registration Districts for 1840-42, 1850-52, 1860-1882, 1890-92, 1900-02, 1908-1910 (i.e. for most of the period, census years plus immediately adjacent years).

Quarterly counts of births, deaths and selected causes of death from the Registrar-General's Quarterly Returns, for Registration sub-Districts. This is limited to (1) a full transcription of all four quarters for each census year within the period covered by the Quarterly Returns: 1871, 1881, 1891, 1901 and 1911; (2) numbers of births and infant deaths in all sub-districts in the County of London from the full run of reports from 1871 to 1911; and (3) a full transcription of all four quarters of 1876, but limited to the north-west of England, defined as Cheshire, Lancashire and Westmorland plus Chapel-en-le-Frith and Hayfield Registration Districts in Derbyshire and Saddleworth in the West Riding.

Individual cholera deaths in London in summer and autumn 1866 arranged by date and causes of death, plus a variant which is adjusted for deaths in hospitals (these data were created by Graham Mooney).

A separate UKDS study contains decennial age-specific cause of death data for all Registration Districts in all decades from 1851-60 to 1901-10.

Please note: this study does not include information on named individuals and would therefore not be useful for personal family history research.

The statistic depicts the median age of the population in the United Kingdom from 1950 to 2100*. The median age of a population is an index that divides the population into two equal groups: half of the population is older than the median age and the other half younger. In 2020, the median age of United Kingdom's population was 39.2 years. Population of the United Kingdom The United Kingdom (UK) includes Great Britain (England, Scotland and Wales) and Northern Ireland, and is a state located off the coast of continental Europe. The United Kingdom is a constitutional monarchy, which means the Queen acts as representative head of state, while laws and constitutional issues are discussed and passed by a parliament. The total UK population figures have been steadily increasing, albeit only slightly, over the last decade; in 2011, the population growth rate was lower than in the previous year for the first time in eight years. Like many other countries, the UK and its economy were severely affected by the economic crisis in 2009. Since then, the unemployment rate has doubled and is only recovering slowly. UK inhabitants tend to move to the cities to find work and better living conditions; urbanization in the United Kingdom has been on the rise. At the same time, population density in the United Kingdom has been increasing due to several factors, for example, the rising number of inhabitants and their life expectancy at birth, an increasing fertility rate, and a very low number of emigrants. In fact, the United Kingdom is now among the 20 countries with the highest life expectancy at birth worldwide. As can be seen above, the median age of UK residents has also been increasing significantly since the seventies; another indicator for a well-working economy and society.

In 2023, the population of the United Kingdom was around 68.3 million, with approximately 34.5 million women and 33.1 million men. Since 1953, the male population of the UK has grown by around 9.1 million, while the female population has increased by approximately 8.5 million. Throughout this provided time period, the female population of the UK has consistently outnumbered the male population. UK population one of the largest in Europe As of 2022, the population of the United Kingdom was the largest it has ever been, and with growth expected to continue, the forecasted population of the United Kingdom is expected to reach over 70 million by the 2030s. Despite the relatively small size of its territory, the UK has one of the largest populations among European countries, slightly larger than France but smaller than Russia and Germany. As of 2022, the population density of the UK was approximately 279 people per square kilometer, with London by far the most densely populated area, and Scotland the most sparsely populated. Dominance of London As seen in the data regarding population density, the population of the United Kingdom is not evenly distributed across the country. Within England, London has a population of almost nine million, making it significantly bigger than the next largest cities of Birmingham and Manchester. As of 2022, Scotland's largest city, Glasgow had a population of around 1.7 million, with the largest cities in Northern Ireland, and Wales being Belfast and Cardiff, which had populations of 643,000 and 488,000 respectively.

Population Estimate, Total, Not Hispanic or Latino, Black or African American Alone (5-year estimate) in New London County, CT was 13981.00000 Persons in January of 2021, according to the United States Federal Reserve. Historically, Population Estimate, Total, Not Hispanic or Latino, Black or African American Alone (5-year estimate) in New London County, CT reached a record high of 14446.00000 in January of 2014 and a record low of 13504.00000 in January of 2011. Trading Economics provides the current actual value, an historical data chart and related indicators for Population Estimate, Total, Not Hispanic or Latino, Black or African American Alone (5-year estimate) in New London County, CT - last updated from the United States Federal Reserve on March of 2025.

Estimate, Median Age by Sex, Total Population (5-year estimate) in New London County, CT was 41.40000 Years of Age in January of 2021, according to the United States Federal Reserve. Historically, Estimate, Median Age by Sex, Total Population (5-year estimate) in New London County, CT reached a record high of 41.40000 in January of 2018 and a record low of 39.30000 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Estimate, Median Age by Sex, Total Population (5-year estimate) in New London County, CT - last updated from the United States Federal Reserve on March of 2025.

In 2022, the median age of the population of the United Kingdom was 40.7 years, compared with 37.9 years in 2001. The average age of the UK population has been increasing throughout this time period, although between 2014 and 2016 the median age remained at 40.

Although the Black Death peaked in Europe between 1348 and 1351, plague was almost always present in Britain for the next four centuries. In most years, plague was a dormant threat that affected very few people, and diseases such as smallpox and influenza were much more widespread; however, bubonic plague was prone to outbreaks that could decimate populations in a few short years. In London, plague outbreaks occurred every few decades, usually with death tolls in the tens of thousands. The duration and severity of these epidemics varied, sometimes having high death tolls but subsiding quickly, while others had relatively lower death tolls but could last for a number of years. As London's population and density also grew drastically during this period, plague affected the city differently in the sixteenth and seventeenth centuries. Great Plague of London The final major plague epidemic observed in Britain took place in 1665 and 1666. It became known as the "Great Plague" as it was the last of its kind in Britain, and its death toll eclipsed all other epidemics in the preceding century (although it was much smaller than that of the Black Death). The plague lasted for eighteen months, and had a reported death toll of more than 70,000 in this time; although modern historians estimate that the actual death toll exceeded 100,000. At its peak in September 1665, it is reported that there were more than 7,000 deaths per week, although this may have also been much higher due to the limited records kept at the time. Another reason for the lack of accurate records relating to this epidemic is because of the Great Fire of London in 1666. The fire started on September 02. 1666, and destroyed almost all of the city within the walls, leaving thousands homeless. Historians continue to debate the fire's significance, some citing that it destroyed the unsanitary dwellings where infected rats lived and drove them from the city, while others claim that the timings were purely coincidental and that the epidemic had already begun to subside in February.

Abstract copyright UK Data Service and data collection copyright owner.

The Great Britain Historical Database has been assembled as part of the ongoing Great Britain Historical GIS Project. The project aims to trace the emergence of the north-south divide in Britain and to provide a synoptic view of the human geography of Britain at sub-county scales. Further information about the project is available on A Vision of Britain webpages, where users can browse the database's documentation system online.

These data were originally collected by the Censuses of Population for England and Wales, and for Scotland. They were computerised by the Great Britain Historical GIS Project and its collaborators. They form part of the Great Britain Historical Database, which contains a wide range of geographically-located statistics, selected to trace the emergence of the north-south divide in Britain and to provide a synoptic view of the human geography of Britain, generally at sub-county scales.

The Census of Population first gathered data on housing "density", i.e. the number of persons in each household relative to the number of rooms, in 1891, although the first year included here is 1901. In 1891, over-crowding was defined as over 2 persons per room; by 1931 this threshold had dropped to 1.5 persons; and by 1961 to 1 person per room. Up to 1931, the data for each locality and date form a table of numbers of persons against numbers of rooms, and these transcriptions sometimes exclude the rows/columns for the very largest households (see the documentation for individual tables). From 1951 onwards, simpler tables simply list numbers of households in each density category (e.g. over 1 person per room and not more than 1.5 persons).

This is a new edition. Data have been added for 1911 and 1951. Wherever possible, ID numbers have been added for counties and districts which match those used in the digital boundary data created by the GBH GIS, greatly simplifying mapping.

Main Topics:

Housing Statistics (persons per room) from the 1901, 1911, 1931, 1951, 1961 and 1971 Censuses.

Please note: this study does not include information on named individuals and would therefore not be useful for personal family history research.