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.

The median age of the population in London was 35.9 years in 2023, the lowest median age among regions of the United Kingdom. By contrast, South West England had a median age of 43.9, the highest in the UK.

Mean, median and modal ages at death in the UK and its constituent countries, 2001 to 2003 and 2016 to 2018.

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.

According to the 2021 Census, 62.9% (37.5 million) of the overall population of England and Wales was of ‘working age’ (between 16 and 64 years old).

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).

This statistic shows the predicted median age of the population of Northern Ireland from 2017 to 2041, by gender. The figures show year on year increase over this twenty eight year period for both men and women, to 43.4 years of age for women and 40.8 years for men.

This report analyses the median age of the UK population. The data is sourced from the Office for National Statistics (ONS) report and forecasts are provided by the ONS Population Projections 2019 in addition to IBISWorld estimates. Figures are point estimates for each financial year.

In 2023, there were estimated to be 956,116 people who were aged 35 in the United Kingdom, the most of any age in this year. The two largest age groups during this year were 30-34, and 35 to 39, at 4.7 million and 4.64 million people respectively. There is also a noticeable spike of 693,679 people who were aged 76, which is due to the high number of births that followed in the aftermath of the Second World War. Over one million born in 1964 In post-war Britain, there have only been two years when the number of live births was over one million, in 1947 and in 1964. The number of births recorded in the years between these two years was consistently high as well, with 1955 having the fewest births in this period at 789,000. This meant that until relatively recently, Baby Boomers were the largest generational cohort in the UK. As of 2022, there were approximately 13.76 million Baby Boomers, compared with 14 million in Generation X, 14.48 million Millennials, and 12.9 million members of Gen Z. The youngest generation in the UK, Generation Alpha numbered approximately 7.5 million in the same year. Median age to hit 44.5 years by 2050 The population of the United Kingdom is aging at a substantial rate, with the median age of the population expected to reach 44.5 years by 2050. By comparison, in 1950 the average age in the United Kingdom stood at 34.9 years. This phenomenon is not unique to the United Kingdom, with median age of people worldwide increasing from 23.6 years in 1950 to a forecasted 41.9 years by 2100. As of 2022, the region with the oldest median age in the UK was South West England, at 43.9 years, compared with 35.9 in London, the region with the youngest median age.

United Kingdom UK: Age Dependency Ratio: % of Working-Age Population: Old data was reported at 29.037 % in 2017. This records an increase from the previous number of 28.659 % for 2016. United Kingdom UK: Age Dependency Ratio: % of Working-Age Population: Old data is updated yearly, averaging 23.904 % from Dec 1960 (Median) to 2017, with 58 observations. The data reached an all-time high of 29.037 % in 2017 and a record low of 18.068 % in 1960. United Kingdom UK: Age Dependency Ratio: % of Working-Age Population: Old data remains active status in CEIC and is reported by World Bank. The data is categorized under Global Database’s United Kingdom – Table UK.World Bank.WDI: Population and Urbanization Statistics. Age dependency ratio, old, is the ratio of older dependents--people older than 64--to the working-age population--those ages 15-64. Data are shown as the proportion of dependents per 100 working-age population.; ; World Bank staff estimates based on age distributions of United Nations Population Division's World Population Prospects: 2017 Revision.; Weighted average;

This dataset provides Census 2021 estimates for the median age, by sex, of usual residents in Northern Ireland. The estimates are as at census day, 21 March 2021.

The census collected information on the usually resident population of Northern Ireland on census day (21 March 2021). Initial contact letters or questionnaire packs were delivered to every household and communal establishment, and residents were asked to complete online or return the questionnaire with information as correct on census day. Special arrangements were made to enumerate special groups such as students, members of the Travellers Community, HM Forces personnel etc. The Census Coverage Survey (an independent doorstep survey) followed between 12 May and 29 June 2021 and was used to adjust the census counts for under-enumeration.

Provisional deaths registration data for single year of age and average age of death (median and mean) of persons whose death involved coronavirus (COVID-19), England and Wales. Includes deaths due to COVID-19 and breakdowns by sex.

United Kingdom UK: Population: Male: Ages 30-34: % of Male Population data was reported at 6.877 % in 2017. This records an increase from the previous number of 6.845 % for 2016. United Kingdom UK: Population: Male: Ages 30-34: % of Male Population data is updated yearly, averaging 6.803 % from Dec 1960 (Median) to 2017, with 58 observations. The data reached an all-time high of 8.274 % in 1996 and a record low of 6.184 % in 1969. United Kingdom UK: Population: Male: Ages 30-34: % of Male Population data remains active status in CEIC and is reported by World Bank. The data is categorized under Global Database’s United Kingdom – Table UK.World Bank.WDI: Population and Urbanization Statistics. Male population between the ages 30 to 34 as a percentage of the total male population.; ; World Bank staff estimates based on age/sex distributions of United Nations Population Division's World Population Prospects: 2017 Revision.; ;

These data tables underlie the ‘Ageing in the UK’ interactive mapping tool. Using the tool helps bring these data alive, allowing you to analyse the age structure of the population at the local area level more easily. You can see how the population has aged over time and is projected to continue to age by selecting from a list of indicators of population ageing, such as median age, and animating the map. It is also possible to export jpegs of the maps you produce.

Source agency: Office for National Statistics

Designation: Official Statistics not designated as National Statistics

Language: English

Alternative title: Ageing in the UK Datasets

There were over 4.7 million people aged between 30 and 34 in the United Kingdom in 2023, making it the most populous age group in that year. Those aged between 35 and 39 years comprised the next most numerous age group in 2023, at over 4.64 million people. Millennials overtake Boomers as biggest generation Post-war demographic trends, particularly the 'baby boom' phenomenon, have significantly influenced the current age distribution in the UK. The postwar peak of live births in 1947 resulted in the dominance of the Baby Boomer generation for several decades, until 2020 when Millennials became the largest generational cohort, surpassing the Boomers for the first time. The following year, the UK Boomer population was then overtaken by Generation X, the generation born between Boomers and Millennials. Generation Z, however, remains smaller than the three generations that preceded it, at 12.9 million individuals in 2022. Aging UK population poses challenges The median age of the UK population is projected to reach 44.5 years by 2050, compared to 34.9 years in 1950. This aging trend is indicative of broader global demographic shifts, with the median age of people worldwide forecasted to increase from 23.6 years in 1950 to 41.9 years by 2100. How countries like the UK manage their aging populations will be one of the key challenges of the next few decades. It is likely the UK's struggling National Health Service (NHS) will come under even more pressure in the coming years. There are also tough economic questions, in particular as more people enter retirement age and the UK's working population gets smaller in relation to it.

Indicators included have been derived from the published 2019 mid-year population estimates for the UK, England, Wales, Scotland and Northern Ireland. These are the number of persons and percentage of the population aged 65 years and over, 85 years and over, 0 to 15 years, 16 to 64 years, 16 years to State Pension age, State Pension age and over, median age and the Old Age Dependency Ratio (the number of people of State Pension age per 1000 of those aged 16 years to below State Pension age).

This dataset has been produced by the Ageing Analysis Team for inclusion in a subnational ageing tool, which was published in July 2020. The tool enables users to compare latest and projected measures of ageing for up to four different areas through selection on a map or from a drop-down menu.

In the 2 years to March 2023, the average age of first-time buyers was 32 years old.

European Union Population: EU 27 excl UK: Age 5 to 9 data was reported at 22,342.857 Person th in 2023. This records a decrease from the previous number of 22,369.512 Person th for 2022. European Union Population: EU 27 excl UK: Age 5 to 9 data is updated yearly, averaging 22,542.298 Person th from Dec 2000 (Median) to 2023, with 24 observations. The data reached an all-time high of 23,602.387 Person th in 2000 and a record low of 22,285.139 Person th in 2010. European Union Population: EU 27 excl UK: Age 5 to 9 data remains active status in CEIC and is reported by Eurostat. The data is categorized under Global Database’s European Union – Table EU.G001: Eurostat: Population.

United Kingdom UK: Age Dependency Ratio: % of Working-Age Population data was reported at 56.810 % in 2017. This records an increase from the previous number of 56.175 % for 2016. United Kingdom UK: Age Dependency Ratio: % of Working-Age Population data is updated yearly, averaging 54.363 % from Dec 1960 (Median) to 2017, with 58 observations. The data reached an all-time high of 60.489 % in 1973 and a record low of 51.330 % in 2007. United Kingdom UK: Age Dependency Ratio: % of Working-Age Population data remains active status in CEIC and is reported by World Bank. The data is categorized under Global Database’s United Kingdom – Table UK.World Bank.WDI: Population and Urbanization Statistics. Age dependency ratio is the ratio of dependents--people younger than 15 or older than 64--to the working-age population--those ages 15-64. Data are shown as the proportion of dependents per 100 working-age population.; ; World Bank staff estimates based on age distributions of United Nations Population Division's World Population Prospects: 2017 Revision.; Weighted average; Relevance to gender indicator: this indicator implies the dependency burden that the working-age population bears in relation to children and the elderly. Many times single or widowed women who are the sole caregiver of a household have a high dependency ratio.