In 2024, there were estimated to be 976,481 people who were aged 33 in the United Kingdom, the most of any age in this year. The two largest age groups during this year were 30-34, and 35-39, at 4.8 million and 4.78 million people respectively. There is also a noticeable spike of 673,831 people who were aged 77, which is due to the high number of births that followed the end 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 2024, there were approximately 13.4 million Baby Boomers, compared with 14 million in Generation X, 15 million Millennials, and 13.6 million members of Gen Z. The youngest generation in the UK, Generation Alpha, numbered approximately 9.2 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 2024, the region with the oldest median age in the UK was South West England, at 43.7 years, compared with 35.7 in London, the region with the youngest median age.

About this dataset

Context

The dataset tabulates the England population by age cohorts (Children: Under 18 years; Working population: 18-64 years; Senior population: 65 years or more). It lists the population in each age cohort group along with its percentage relative to the total population of England. The dataset can be utilized to understand the population distribution across children, working population and senior population for dependency ratio, housing requirements, ageing, migration patterns etc.

Key observations

The largest age group was 18 to 64 years with a poulation of 1,489 (57.98% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.

Age cohorts:

• Under 18 years
• 18 to 64 years
• 65 years and over

Variables / Data Columns

• Age Group: This column displays the age cohort for the England population analysis. Total expected values are 3 groups ( Children, Working Population and Senior Population).
• Population: The population for the age cohort in England is shown in the following column.
• Percent of Total Population: The population as a percent of total population of the England is shown in the following column.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for England Population by Age. You can refer the same here

This statistic shows the main reasons for children aged 16 to 18 years contacting Childline in the United Kingdom (UK) in 2018/19. The most common concern identified, at 34 percent, was mental or emotional health, followed by suicidal thoughts or feelings at 12 percent.

In the United Kingdom (UK), those aged between 18 and 24 years of age are more likely than any other age group to be Pinterest users. Those are the findings of a survey conducted by We Are Flint of internet users aged 18 years and over.

Females more likely to be pinning

Females in the UK are more likely than males to use Pinterest, with 45 percent of respondents saying they were Pinterest users, compared with 27 percent of males. It is a similar situation in the United States, where there are 58.9 million female Pinterest users, compared with 32.6 million male users.

Pinterest growth leads to IPO   

Pinterest has enjoyed solid growth in previous years, reaching 291 million active monthly users in the first quarter of 2019. The company launched an IPO on the back of this success in February 2019, and started trading during the following April. Worldwide, Pinterest generated 755.93 million U.S. dollars in revenue, up from 472.85 million the year before.

LA data for: CLA on 31 March; CLA starting during the year; CLA ceasing during the year. Note: Figures for CLA during the year can be found in the LA dataset on children who have gone missing or who are away from placement without authorisation.

The share of girls aged eight to 18 years old in the United Kingdom who enjoyed reading amounted to 39.1 percent in 2025, according to a survey held in spring that year. Whilst it was true that more girls than boys expressed enjoyment in reading (in line with annual trends) the 2025 figure was the lowest recorded for both genders.

BMI: Body Mass Index, IOTF: International Obesity Task Force, IQR: Inter-Quartile Range, UK: United Kingdom, NSHD: Medical Research Council National Survey of Health and Development, NCDS National Child Development Study, BCS: British Cohort Study, ALSPAC: Avon Longitudinal Study of Parents and Children, MCS: Millennium Cohort StudyaThinness, overweight, and obesity between 2–18 years of age were defined according to the IOTF cut-offs, which are centiles that link with the adulthood cut-offs at age 18 years (e.g., the 90.5th IOTF centile is used to define overweight in boys as this centile equals 25 kg/m2, the adulthood cut-off, at age 18 years).Description of BMI data in the five UK birth cohort studies.

Local authority level data for:Children looked after on 31 MarchChildren who started to be looked after during the yearChildren who ceased to be looked after during the yearData includes numbers of looked after children, formerly in tables LAA1, LAC1, LAD1.Note: Figures for children looked after during the year can be found in the LA dataset on children who have gone missing or who are away from placement without authorisation.For some local authorities, the figures may be impacted by significant numbers of unaccompanied asylum seeking children.

Our Future Health is a prospective, observational cohort study of the general adult population of the United Kingdom (UK). The programme aims to support a wide range of observational health research. We gather personal, health and lifestyle information from each participant through a self-completed baseline health questionnaire and at an in-person clinic visit. We will further link this data to other health-related data sets. Participants have also given consent for us to recontact them, for example to invite them to take part in further or repeat data collections, or other embedded studies such as clinical trials.

The Our Future Health programme is currently open to all adults (18 years and older) living in the UK. In July 2022, we started recruiting participants in England and will continue to expand across the rest of the UK. The data we've gathered so far (September 2025) includes clinical measurements from 1,433,275 participants.

The current data available contains responses from our baseline health questionnaire only and an indicator if a blood sample was provided and stored. The current data is split into 2 categories: • participant data - which contains baseline demographic information collected across all consented participants • questionnaire data - which contains self-reported health information, details about participants' household, socioeconomic status, work and education history, and family history

Additional linked datasets are available: - 'Baseline Health Questionnaire Data' which contains baseline demographic information and responses to our health questionnaire from 1,900,494 participants. - 'Linked NHS England Health Records Data' which contains linked clinical data from NHS England for 1,703,250 participants. - 'Genotype Array Data' which includes genotype array data on 707,522 variants from a subset of 650,870 participants

The data is stored in the Our Future Health Trusted Research Environment. We de-identify all participant data we gather before it's available for use. All researchers will need to become registered researchers at Our Future Health and have an approved research study before they're given access to the data.

We aim to collect a variety of data types from up to 5 million adult participants from across the UK. We hope to make more data types available on a quarterly basis.

In 2024, children in the United Kingdom spent an average of *** minutes per day on TikTok. This was followed by Instagram, as children in the UK reported using the app for an average of ** minutes daily. Children in the UK aged between four and 18 years also used Facebook for ** minutes a day on average in the measured period. Mobile ownership and usage among UK children In 2021, around ** percent of kids aged between eight and 11 years in the UK owned a smartphone, while children aged between five and seven having access to their own device were approximately ** percent. Mobile phones were also the second most popular devices used to access the web by children aged between eight and 11 years, as tablet computers were still the most popular option for users aged between three and 11 years. Children were not immune to the popularity acquired by short video format content in 2020 and 2021, spending an average of ** minutes per day engaging with TikTok, as well as over ** minutes on the YouTube app in 2021. Children data protection In 2021, ** percent of U.S. parents and ** percent of UK parents reported being slightly concerned with their children’s device usage habits. While the share of parents reporting to be very or extremely concerned was considerably smaller, children are considered among the most vulnerable digital audiences and need additional attention when it comes to data and privacy protection. According to a study conducted during the first quarter of 2022, ** percent of children’s apps hosted in the Google Play Store and ** percent of apps hosted in the Apple App Store transmitted users’ locations to advertisers. Additionally, ** percent of kids’ apps were found to collect persistent identifiers, such as users’ IP addresses, which could potentially lead to Children’s Online Privacy Protection Act (COPPA) violations in the United States. In the United Kingdom, companies have to take into account several obligations when considering online environments for children, including an age-appropriate design and avoiding sharing children’s data.

There were almost 4.8 million people aged between 30 and 34 in the United Kingdom in 2024, 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 this year, at over 4.78 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, remained smaller than the three generations that preceded it until 2024 when there were more Gen Zers than Boomers. 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.

About this dataset

Context

The dataset tabulates the England population distribution across 18 age groups. It lists the population in each age group along with the percentage population relative of the total population for England. The dataset can be utilized to understand the population distribution of England by age. For example, using this dataset, we can identify the largest age group in England.

Key observations

The largest age group in England, AR was for the group of age 55-59 years with a population of 276 (11.03%), according to the 2021 American Community Survey. At the same time, the smallest age group in England, AR was the 85+ years with a population of 32 (1.28%). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Age groups:

• Under 5 years
• 5 to 9 years
• 10 to 14 years
• 15 to 19 years
• 20 to 24 years
• 25 to 29 years
• 30 to 34 years
• 35 to 39 years
• 40 to 44 years
• 45 to 49 years
• 50 to 54 years
• 55 to 59 years
• 60 to 64 years
• 65 to 69 years
• 70 to 74 years
• 75 to 79 years
• 80 to 84 years
• 85 years and over

Variables / Data Columns

• Age Group: This column displays the age group in consideration
• Population: The population for the specific age group in the England is shown in this column.
• % of Total Population: This column displays the population of each age group as a proportion of England total population. Please note that the sum of all percentages may not equal one due to rounding of values.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for England Population by Age. You can refer the same here

This is a point feature service which shows the following "Proportion of the practice population (in percent) aged under 5, 15 and 18 years".This data was downloaded in February 2015. Esri UK accepts no responsibility over the quality of the data or ownership. All content is available under the Open Government Licence, except where otherwise stated.

This report presents findings from the Government's National Child Measurement Programme (NCMP) for England, 2017-18 school year. It covers children in Reception (aged 4-5 years) and Year 6 (aged 10-11 years) in mainstream state-maintained schools in England. The report contains analyses of Body Mass Index (BMI) classification rates by age, sex and ethnicity as well as geographic analyses. Note - The visualisation tool below is in Microsoft PowerBI which does not fully support all accessibility needs. If you need further assistance, please contact us for help.

In August 2025, Instagram had over ** million users in the United Kingdom (UK). The largest share of Instagram users were individuals aged between 25 and 34 years old, at *****percent. This was followed by the category of users aged 18 to 24 years. Individuals over 65 years old, were less likely to use the social media platform, making up the smallest share of Instagram users during this period. Leading social media in the UK According to figures based on approximately ******* billion hits online per month, Facebook was the leading social media website in the UK as of November 2024, holding over ***** percent of the social media market share. This was followed by Instagram and X (formerly known as Twitter). The Pinterest website ranked fourth during that period, with a market share of **** percent. Facebook: Leader in the UK The number of social network users in the UK experienced an increase of roughly *** million users between 2018 and 2023. The share of female Facebook users is slightly higher than the number of male users. At ********* of respondents, individuals aged between 25 and 34 years old made up the largest share of Facebook users in the UK. This was followed by roughly **** percent of users within the 35 to 44 years old category. Facebook usage appeared to be the lowest among those aged 65 and older.

This report presents findings from the third (wave 3) in a series of follow up reports to the 2017 Mental Health of Children and Young People (MHCYP) survey, conducted in 2022. The sample includes 2,866 of the children and young people who took part in the MHCYP 2017 survey. The mental health of children and young people aged 7 to 24 years living in England in 2022 is examined, as well as their household circumstances, and their experiences of education, employment and services and of life in their families and communities. Comparisons are made with 2017, 2020 (wave 1) and 2021 (wave 2), where possible, to monitor changes over time.

NHS CHECK started as a major study of the impact of the COVID-19 pandemic on the short and long-term health and wellbeing of all staff working within 18 partner NHS Trusts. All participants in the study are clinical staff, students, or support staff within the 18 NHS Trusts across England, United Kingdom. The participants were all aged over 18 years at recruitment, and were required to understand and communicate in English. The study is also partnered with the 'Tackling Inequalities and Discrimination Experiences in health Services (TIDES)' study to ensure representation of ethnic minorities, and to capture experiences of inequality and discrimination.

This dataset is on children (persons aged less than 18 years) in judicial proceedings in United Kingdom. Judicial proceedings are those taking place in court as a part of the justice systems in Member States or proceedings that are alternatives to judicial proceedings. The data concerns the child in different roles, such as suspect/offender, witness, victim, plaintiff or otherwise the subject of judicial proceedings.

The dataset is organised according to the theme from the Masterlist. You can filter this dataset according to key word searches, whether the data provides disaggregation by the age of child, sex, region within country or socio-economic group and by source. The listing of national datasets indicates whether the information provided is equivalent or approximate to the Masterlist indicators.

You are able to access the raw data and metadata.

The national contextual overview describes the national legal and policy framework with regard to children's involvement in criminal judicial proceedings as at 1 June 2012.

The National Diet and Nutrition Survey (NDNS) Rolling Programme (RP) began in 2008 and is designed to assess the diet, nutrient intake and nutritional status of the general population aged 1.5 years and over living in private households in the UK. (For details of the previous NDNS series, which began in 1992, see the documentation for studies 3481, 4036, 4243 and 5140.)

The programme is funded by Public Health England (PHE), an executive agency of the Department of Health, and the UK Food Standards Agency (FSA).

The NDNS RP is currently carried out by a consortium comprising NatCen Social Research (NatCen) (NatCen, contract lead) and the MRC Epidemiology Unit, University of Cambridge (scientific lead). The MRC Epidemiology Unit joined the consortium in November 2017. Until December 2018, the consortium included the MRC Elsie Widdowson Laboratory, Cambridge (former scientific lead). In Years 1 to 5 (2008/09 – 2012/13) the consortium also included the University College London Medical School (UCL).

Survey activities at the MRC Epidemiology Unit are delivered with the support of the National Institute for Health Research (NIHR) Cambridge Biomedical Research Centre (IS-BRC-1215- 20014), comprising the NIHR BRC Nutritional Biomarker Laboratory and NIHR BRC Dietary Assessment and Physical Activity Group. The NIHR Cambridge Biomedical Research Centre is a partnership between Cambridge University Hospitals NHS Foundation Trust and the University of Cambridge, funded by the NIHR.

Further information is available from the gov.uk National Diet and Nutrition Survey webpage.

The survey of young people aged 4 to 18 years aimed to collect data on diet through a questionnaire and a 7-day weighed intake record for a nationally representative sample living in private households in Great Britain. The study also included a 7-day bowel movement record, a 7-day physical activity diary, anthropometric and blood pressure measurem ents, a spot urine sample and a blood sample. The survey consisted of two parts: Part 1, the Diet and Nutrition Survey, and Part 2, the Oral Health Survey.

In addition to the aims of the survey series as a whole, the survey of young people was designed to:

• provide data to assist in the development of dietary guidelines for young people, including dietary guidelines for food provided by schools
• determine the frequency of bowel movement in this age group
• provide baseline and comparative data for blood pressure and some anthropometric measurements in this age group
• provide baseline and comparative data for some haematological and biochemical indices in blood and urine in this age group

This is a report on NHS-funded Community Services for children and young people aged 18 years or under using data from the new Children and Young People's Health Services (CYPHS) data set reported in England for activity for January 2017. The CYPHS is a patient-level dataset providing information relating to NHS-funded community services for children and young people aged 18 years or under. These services can include health centres, schools and mental health trusts. The data collected includes personal and demographic information, diagnoses including long-term conditions and childhood disabilities and care events plus screening activities. It has been developed as part of the Maternity and Children's Data Set (MCDS) Project to achieve better outcomes of care for children and young people. It provides data that will be used to improve clinical quality and service efficiency, in a way that improves health and reduces inequalities. These statistics are classified as experimental and should be used with caution. Experimental statistics are new official statistics undergoing evaluation. They are published in order to involve users and stakeholders in their development and as a means to build in quality at an early stage. More information about experimental statistics can be found on the UK Statistics Authority website.