19 datasets found
  1. United Kingdom - ethnicity

    • statista.com
    Updated Nov 28, 2025
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    Statista (2025). United Kingdom - ethnicity [Dataset]. https://www.statista.com/statistics/270386/ethnicity-in-the-united-kingdom/
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    Dataset updated
    Nov 28, 2025
    Dataset authored and provided by
    Statistahttp://statista.com/
    Time period covered
    2011
    Area covered
    United Kingdom
    Description

    In 2011, 87.2 percent of the total population of the United Kingdom were white British. A positive net migration in recent years combined with the resultant international relationships following the wide-reaching former British Empire has contributed to an increasingly diverse population. Varied ethnic backgrounds Black British citizens, with African and/or African-Caribbean ancestry, are the largest ethnic minority population, at three percent of the total population. Indian Britons are one of the largest overseas communities of the Indian diaspora and make up 2.3 percent of the total UK population. Pakistani British citizens, who make up almost two percent of the UK population, have one of the highest levels of home ownership in Britain. Racism in the United Kingdom Though it has decreased in comparison to the previous century, the UK has seen an increase in racial prejudice during the first decade and a half of this century. Racism and discrimination continues to be part of daily life for Britain’s ethnic minorities, especially in terms of work, housing, and health issues. Moreover, the number of hate crimes motivated by race reported since 2012 has increased, and in 2017/18, there were 3,368 recorded offenses of racially or religiously aggravated assault with injury, almost a thousand more than in 2013/14.

  2. s

    Population of England and Wales

    • ethnicity-facts-figures.service.gov.uk
    csv
    Updated May 21, 2024
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    Race Disparity Unit (2024). Population of England and Wales [Dataset]. https://www.ethnicity-facts-figures.service.gov.uk/uk-population-by-ethnicity/national-and-regional-populations/population-of-england-and-wales/latest
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    csv(17 KB)Available download formats
    Dataset updated
    May 21, 2024
    Dataset authored and provided by
    Race Disparity Unit
    License

    Open Government Licence 3.0http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/
    License information was derived automatically

    Area covered
    Wales, England
    Description

    According to the 2021 Census, 81.7% of the population of England and Wales was white, 9.3% Asian, 4.0% black, 2.9% mixed and 2.1% from other ethnic groups.

  3. e

    Bradford Council populations

    • data.europa.eu
    html, pdf
    Updated Sep 25, 2021
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    City of Bradford Metropolitan District Council (2021). Bradford Council populations [Dataset]. https://data.europa.eu/data/datasets/bradford-council-populations
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    pdf, htmlAvailable download formats
    Dataset updated
    Sep 25, 2021
    Dataset authored and provided by
    City of Bradford Metropolitan District Council
    License

    Open Government Licence 3.0http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/
    License information was derived automatically

    Area covered
    Bradford
    Description

    The latest population figures produced by the Office for National Statistics (ONS) on 28 June 2018 show that an estimated 534,800 people live in Bradford District – an increase of 2,300 people (0.4%) since the previous year.

    Bradford District is the fifth largest metropolitan district (in terms of population) in England, after Birmingham, Leeds, Sheffield and Manchester although the District’s population growth is lower than other major cities.

    The increase in the District’s population is largely due to “natural change”- there have been around 3,300 more births than deaths, although this has been balanced by a larger number of people leaving Bradford to live in other parts of the UK than coming to live here and a lower number of international migrants. In 2016/17 the net internal migration was -2,700 and the net international migration was 1,700.

    A large proportion of Bradford’s population is dominated by the younger age groups. More than one-quarter (29%) of the District’s population is aged less than 20 and nearly seven in ten people are aged less than 50. Bradford has the highest percentage of the under 16 population in England after the London Borough of Barking and Dagenham, Slough Borough Council and Luton Borough Council.

    The population of Bradford is ethnically diverse. The largest proportion of the district’s population (63.9%) identifies themselves as White British. The district has the largest proportion of people of Pakistani ethnic origin (20.3%) in England.

    The largest religious group in Bradford is Christian (45.9% of the population). Nearly one quarter of the population (24.7%) are Muslim. Just over one fifth of the district’s population (20.7%) stated that they had no religion.

    There are 216,813 households in the Bradford district. Most households own their own home (29.3% outright and 35.7% with a mortgage). The percentage of privately rented households is 18.1%. 29.6% of households were single person households.

    Information from the Annual Population Survey in December 2017 found that Bradford has 228,100 people aged 16-64 in employment. At 68% this is significantly lower than the national rate (74.9%). 91,100 (around 1 in 3 people) aged 16-64, are not in work. The claimant count rate is 2.9% which is higher than the regional and national averages.

    Skill levels are improving with 26.5% of 16 to 74 year olds educated to degree level. 18% of the district’s employed residents work in retail/wholesale. The percentage of people working in manufacturing has continued to decrease from 13.4% in 2009 to 11.9% in 2016. This is still higher than the average for Great Britain (8.1%).

  4. Estimates of the population for the UK, England, Wales, Scotland, and...

    • ons.gov.uk
    • cy.ons.gov.uk
    xlsx
    Updated Sep 26, 2025
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    Office for National Statistics (2025). Estimates of the population for the UK, England, Wales, Scotland, and Northern Ireland [Dataset]. https://www.ons.gov.uk/peoplepopulationandcommunity/populationandmigration/populationestimates/datasets/populationestimatesforukenglandandwalesscotlandandnorthernireland
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    xlsxAvailable download formats
    Dataset updated
    Sep 26, 2025
    Dataset provided by
    Office for National Statisticshttp://www.ons.gov.uk/
    License

    Open Government Licence 3.0http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/
    License information was derived automatically

    Area covered
    Ireland, United Kingdom, England
    Description

    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).

  5. u

    Area Level Index of Age Diversity in the UK, 2002-2019

    • datacatalogue.ukdataservice.ac.uk
    • datacatalogue.cessda.eu
    Updated Mar 26, 2024
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    Hyde, M, University of Leicester (2024). Area Level Index of Age Diversity in the UK, 2002-2019 [Dataset]. http://doi.org/10.5255/UKDA-SN-857101
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    Dataset updated
    Mar 26, 2024
    Authors
    Hyde, M, University of Leicester
    Area covered
    United Kingdom
    Description

    The Area Level Index of Age Diversity (ALIAD) is based on the Simpson's Index of Diversity. It is commonly used in ecological studies to quantify the biodiversity of a habitat as it takes into account both the richness, i.e. the number of species present, and the evenness, i.e. the abundance of each species, within an environment. As species richness and evenness increase, so diversity increases. The index represents the probability that two randomly selected individuals will belong to different groups. It ranges from 0 and 100, with higher values representing greater diversity. ALIAD was computed for each Lower Super Output Area (LSOA) in England and Wales (E&W), each Data Zone (DZ) in Scotland and each Super Output Area (SOA) in Northern Ireland from 2002 to 2019. It is based on the mid-year population estimates (MYPE) for each area for each year. This is information is freely available in accordance with version 3.0 of the Open Government Licence. However, the different national statistical agencies compute MYPE for different age groups. In England and Wales estimates are provided for single-year age groups, i.e. the number of people aged 0, 1, 2, 3, etc. In Scotland estimates are provided for quinary age groups, i.e. the number of people aged 0-4, 5-9, 10-14, etc. In Northern Ireland (NI) estimates are provided for four larger age groups, i.e. 0-15, 16-39, 40-64 and 65+. It was decided to match the age groups to the NI classification as i) this would provide the greatest geographical coverage, ii) the estimates ought to be more robust and iii) in discussions with policy and practice stakeholders these age groups were seen as more meaningful than single-year or quinary age groups. An exact match was possible between the E&W and NI age groups. However, because of the use of quinary age groups it is not possible to get an exact match for all age groups in Scotland. Hence, the age groups used on Scotland are 0-14, 15-39, 40-64 and 65+.
    The final dataset contains the computed ALIAD values for each of the 34,753 LSOAs, the 6,976 DZs and the 890 SOAs from 2002-2019. ALIAD has a range of 0-100. On this scale 0 would represent total age concentration, i.e. every member of the area is in the same age group, and 100 would represent complete age diversity within the area.

    There is evidence that Britain is becoming more and more generationally divided. A major part of this is that the places where we live have become increasingly 'age segregated'. This means younger people tend to live in places where there are more younger people and older people tend to live in places where there are more older people. Deep generational divisions can have implications for social cohesion and effective societal functioning. Policy makers are concerned that this could have negative health, economic, social and political costs. Indeed, a recent report by the Resolution Foundation estimated that age-segregation could cost the UK economy £6 billion per year. However, there is currently no research in Britain that has been able to directly test whether living in areas with a greater mix of ages has an impact on people. By linking information on the number of people in different age groups at the local level with information from a long running survey, our project will be the first to do this. We will create a new measure, called the 'area level index of age diversity', for all the residential areas in Great Britain (these are called Lower Super Output Areas in England and Wales and Data Zones in Scotland). Unlike existing measures which tend to focus just on younger versus older adults, this new measure will use information from people of all ages to get a better idea of the mix of age groups in an area. The first thing we intend to do with this information is to produce a series of maps of Britain to show which local areas are more or less age diverse. This information will be very useful for local government, councils, city planners and the like. Once we have done this, we will then link our new measure of age diversity to information on around 50,000 people living in Britain who have been part of a long running study (called the UK Household Longitudinal Survey). This will enable us to see whether living in areas that have people from a wide (or narrow) range of age groups impacts on people's health (e.g. whether the person has an illness or chronic condition), well-being (e.g. loneliness), civic participation (e.g. whether someone volunteers or not), and neighbourhood quality (e.g. whether people trust their neighbours). Our findings will provide a much needed evidence base on the extent of local area level age diversity in Britain and what effect (if any) this has on people's lives.

  6. Attractiveness of the United Kingdom (UK) for tourists 2014

    • statista.com
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    Statista, Attractiveness of the United Kingdom (UK) for tourists 2014 [Dataset]. https://www.statista.com/statistics/323465/attractiveness-of-the-united-kingdom-for-tourists/
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    Dataset authored and provided by
    Statistahttp://statista.com/
    Time period covered
    Dec 18, 2013 - Jan 17, 2014
    Area covered
    United Kingdom
    Description

    This statistic shows the characteristics tourists find more attractive in the United Kingdom (UK) as of 2014. Of respondents, 42 percent were attracted to the UK's cultural and historic attractions, while 39 percent preferred cities. The survey was conducted in 5 key country markets.

  7. c

    The diversity effect: Intergroup interactions and the impact of diversity on...

    • datacatalogue.cessda.eu
    Updated Sep 26, 2025
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    McKeown Jones, S (2025). The diversity effect: Intergroup interactions and the impact of diversity on young people's attitudes and academics, survey data 2017-2018 [Dataset]. http://doi.org/10.5255/UKDA-SN-853986
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    Dataset updated
    Sep 26, 2025
    Dataset provided by
    University of Bristol
    Authors
    McKeown Jones, S
    Time period covered
    Jan 1, 2017 - Dec 31, 2018
    Area covered
    United Kingdom
    Variables measured
    Individual
    Measurement technique
    The dataset comprises longitudinal survey responses (3 time points) from approximately 700 x 11 year olds from 4 secondary schools in England. Participants completed, amongst others, a series of questions on their intergroup contact experiences, social attitudes, educational efficacy and aspirations as well as perceptions of peer, school, family and teacher support. A measures manual that includes citations for each of the measures as well as a copy of the full questionnaire have been filed. Participants comprised a non-random sample recruited via their school. Schools were selected and contacted based on their levels of racial diversity and where potable matched based on the number of students and the percentage of students receiving free schools meals. Time 1 was collected in autumn 2017, Time 2 in early new year 2018 and Time 3 in spring 2018. Time 3 survey responses were completed following approximately half of the participants taking part in an intervention designed as part of the product.
    Description

    The project utilised a survey methodology, collecting paper and pen survey responses from participants at three time points over the period of a school year. At each time point, the survey explored the relationship between contact experiences and social and soft educational outcomes. The Diversity Effect Project examined the ways in which intergroup interaction experiences happen amongst youth attending ethnically diverse secondary schools, the impact of these interactions on social attitudes and soft educational outcomes, and how teachers might intervene to promote more intergroup relations in the school classroom. Working alongside teachers in each of the four schools involved in the project, the research also designed a bespoke 4-week intervention that aimed to promote more positive social attitudes and better educational outcomes for youth. Within each school, the intervention was implemented either by half of the classes or by all classes. The effectiveness of the intervention was assessed using the third survey time point. The dataset comprises the survey responses from the three matched time points enabling users to examine changes over time as well as the effects of the intervention on social attitudes and soft educational outcomes.

    Multiculturalism is a feature of almost every society and yet the value of diversity is highly contested. Despite its potential riches as a means to challenge stereotypes and add cultural value, it is sometimes viewed as a societal problem, associated with tensions, segregation and a clashing of cultures. By focusing on diversity as a problem, however, we have neglected to fully understand how and when diversity is associated with positive outcomes or how these can be embraced. The proposed project aims to address this gap in the literature by addressing under what conditions diversity is associated with social cohesion and educational achievement through the lens of intergroup contact theory. It will examine the extent of ethnic segregation in formal (classroom) and informal (cafeteria) spaces in secondary schools in Bristol, a diverse city in the United Kingdom, to enable an understanding of the relationship between observed behaviours, attitudes and achievement and to establish what can be done to intervene and promote more positive outcomes for all learners. The project will provide both theoretical and methodological contributions. Theoretically, the research will shed light on the compatibility of diversity, education and social attitudes addressing the ESRC strategic priority to promote a Vibrant and Fair Society. Whilst there has been much research which has examined the effects of diversity on wider society and educational outcomes (often in the U.S.), to date these effects have not been evaluated through the lens of intergroup contact theory taking into consider the nature and quality of the interactions occurring within and outside the classroom. As such, the project will develop a new theoretical approach which brings together perspectives from multiple disciplines to gain a holistic understanding of the diversity effect. Methodologically, the project will provide two main innovations. First, it will integrate multiple quantitative and qualitative methods and techniques longitudinally, moving beyond mere self-report of attitudes which is currently a focus in UK social science research on diversity, and in doing so provide a new, multilevel dataset for further research. This will include observations of seating behaviour in different spaces within the target schools, social network analysis and advanced statistical analysis of longitudinal questionnaire responses. Second, it will move beyond observations of the effects and develop a short and easy to implement intervention which will have potential to be scaled up and used across the UK and beyond. To achieve this, the project will work with teachers and other stakeholders in the design, execution, and dissemination of the research at different stages throughout and after the project. The project has potential for wide impact. The findings will inform understandings of diversity and how to best promote intergroup relations and academics for all learners beyond the social psychology and education audiences. This will deepen the evidence base that can inform policy and practice in the UK and internationally. Both local actors as well as international organisations have become increasingly interested in the effects of diversity on society. Examining the value of ethnic diversity will provide valuable lessons for schools and wider society informing strategies to reduce the likelihood of ethnic tensions.

  8. Number of people per square kilometer in the UK in 2024, by region

    • statista.com
    Updated Nov 28, 2025
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    Statista (2025). Number of people per square kilometer in the UK in 2024, by region [Dataset]. https://www.statista.com/statistics/281322/population-density-in-the-uk-by-region/
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    Dataset updated
    Nov 28, 2025
    Dataset authored and provided by
    Statistahttp://statista.com/
    Time period covered
    2023
    Area covered
    United Kingdom
    Description

    As of 2024, the population density in London was by far the highest number of people per square km in the UK, at *****. Of the other regions and countries which constitute the United Kingdom, North West England was the next most densely populated area at *** people per square kilometer. Scotland, by contrast, is the most sparsely populated country or region in the United Kingdom, with only ** people per square kilometer. Countries, regions, and cities In 2024, the population of the United Kingdom reached **** million. The majority of people in the UK live in England, which had a population of **** million that year, followed by Scotland at *** million, Wales at **** million and finally Northern Ireland at just over *** million. Within England, the South East was the region with the highest population at almost *** million, followed by London at just over *****million. In terms of cities, London is the largest urban agglomeration in the United Kingdom, followed by Manchester, and then Birmingham, although both these cities combined would still have a smaller population than the UK capital. London calling London's huge size in relation to other UK cities is also reflected by its economic performance. In 2023, London's GDP was over ****billion British pounds, around a quarter of UK's overall GDP. In terms of GDP per capita, Londoners had a GDP per head of ****** pounds, compared with an average of ****** 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 2023, London was around *****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.

  9. Population of the UK 2024, by region

    • statista.com
    Updated Nov 28, 2025
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    Statista (2025). Population of the UK 2024, by region [Dataset]. https://www.statista.com/statistics/294729/uk-population-by-region/
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    Dataset updated
    Nov 28, 2025
    Dataset authored and provided by
    Statistahttp://statista.com/
    Time period covered
    2024
    Area covered
    United Kingdom
    Description

    The population of the United Kingdom in 2024 was estimated to be approximately 69.3 million, with over 9.6 million people living in South East England. London had the next highest population, at almost 9.1 million people, followed by the North West England at 7.7 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, 3.2 million, and 1.9 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 650,000, while in Wales, it was the Cardiff Unitary Authority at around 384,000. Northern Ireland, on the other hand, has eleven local government districts, the largest of which is Belfast with a population of approxiamtely 352,000.

  10. p

    Cities Of London And Westminster Demographics - Key Stats

    • propertistics.co.uk
    Updated Aug 7, 2025
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    Propertistics (2025). Cities Of London And Westminster Demographics - Key Stats [Dataset]. https://propertistics.co.uk/stats/westminster/cities-of-london-and-westminster/demographics/
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    Dataset updated
    Aug 7, 2025
    Dataset authored and provided by
    Propertistics
    Area covered
    City of Westminster, Cities of London and Westminster
    Description

    Cities Of London And Westminster, Westminster demographics statistics broken down by ethnicity, religion, age, birthplace and much more. View full insights for the local and surrounding households.

  11. l

    Census 21 - Ethnicity MSOA

    • data.leicester.gov.uk
    csv, excel, geojson +1
    Updated Aug 22, 2023
    + more versions
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    (2023). Census 21 - Ethnicity MSOA [Dataset]. https://data.leicester.gov.uk/explore/dataset/census-21-ethnicity-msoa/
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    json, geojson, csv, excelAvailable download formats
    Dataset updated
    Aug 22, 2023
    License

    Open Government Licence 3.0http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/
    License information was derived automatically

    Description

    The census is undertaken by the Office for National Statistics every 10 years and gives us a picture of all the people and households in England and Wales. The most recent census took place in March of 2021.The census asks every household questions about the people who live there and the type of home they live in. In doing so, it helps to build a detailed snapshot of society. Information from the census helps the government and local authorities to plan and fund local services, such as education, doctors' surgeries and roads.Key census statistics for Leicester are published on the open data platform to make information accessible to local services, voluntary and community groups, and residents. There is also a dashboard published showcasing various datasets from the census allowing users to view data for Leicester MSOAs and compare this with Leicester overall statistics.Further information about the census and full datasets can be found on the ONS website - https://www.ons.gov.uk/census/aboutcensus/censusproductsEthnicityThis dataset provides Census 2021 estimates that classify usual residents in England and Wales by ethnic group. The estimates are as at Census Day, 21 March 2021.Definition: The ethnic group that the person completing the census feels they belong to. This could be based on their culture, family background, identity or physical appearance.Respondents could choose one out of 19 tick-box response categories, including write-in response options.This dataset includes data relating to the Medium Super Output Areas (MSOAs) of Leicester City.

  12. Largest cities in Europe in 2025

    • statista.com
    Updated May 28, 2025
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    Statista (2025). Largest cities in Europe in 2025 [Dataset]. https://www.statista.com/statistics/1101883/largest-european-cities/
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    Dataset updated
    May 28, 2025
    Dataset authored and provided by
    Statistahttp://statista.com/
    Time period covered
    2025
    Area covered
    Europe
    Description

    In 2025, Moscow was the largest city in Europe with an estimated urban agglomeration of 12.74 million people. The French capital, Paris, was the second largest city in 2025 at 11.35 million, followed by the capitals of the United Kingdom and Spain, with London at 9.84 million and Madrid at 6.81 million people. Istanbul, which would otherwise be the largest city in Europe in 2025, is excluded as it is only partially in Europe, with a sizeable part of its population living in Asia. Europe’s population is almost 750 million Since 1950, the population of Europe has increased by approximately 200 million people, increasing from 550 million to 750 million in these seventy years. Before the turn of the millennium, Europe was the second-most populated continent, before it was overtaken by Africa, which saw its population increase from 228 million in 1950 to 817 million by 2000. Asia has consistently had the largest population of the world’s continents and was estimated to have a population of 4.6 billion. Europe’s largest countries Including its territory in Asia, Russia is by far the largest country in the world, with a territory of around 17 million square kilometers, almost double that of the next largest country, Canada. Within Europe, Russia also has the continent's largest population at 145 million, followed by Germany at 83 million and the United Kingdom at almost 68 million. By contrast, Europe is also home to various micro-states such as San Marino, which has a population of just 30 thousand.

  13. Travelling Salesman Problem: Visit 49 UK Cities.

    • kaggle.com
    zip
    Updated May 30, 2024
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    Patrick L Ford (2024). Travelling Salesman Problem: Visit 49 UK Cities. [Dataset]. https://www.kaggle.com/datasets/patricklford/travelling-salesman-problem
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    zip(1158 bytes)Available download formats
    Dataset updated
    May 30, 2024
    Authors
    Patrick L Ford
    License

    https://creativecommons.org/publicdomain/zero/1.0/https://creativecommons.org/publicdomain/zero/1.0/

    Area covered
    United Kingdom
    Description

    Introduction:

    The Travelling Salesman Problem (TSP) is a classic optimisation problem in which a salesman must visit a set of cities, each exactly once, and return to the starting city, with the goal of minimising the total travel distance. Despite its simplicity, TSP is NP-hard (nondeterministic polynomial time), meaning that the time required to solve it increases exponentially with the number of cities. The uploaded UK_Cities.csv file has the 49 most populated cities in the UK, which along with the city name, there are the latitude, longitude and population figures (population figures are accurate to the latest census, 2021).

    Nearest Neighbour Algorithm

    The Nearest Neighbour (NN) algorithm is a heuristic method for solving the TSP. While it doesn't guarantee an optimal solution, it provides a reasonably good solution in a relatively short amount of time. Here’s how it works: - Start at a Random City: Choose a starting city. - Visit the Nearest Unvisited City: From the current city, travel to the closest city that hasn't been visited yet. - Repeat Until All Cities Are Visited: Continue visiting the nearest unvisited city until all cities have been visited. - Return to the Starting City: Finally, return to the starting city to complete the tour.

    Advantages: - Simple and easy to implement. - Fast execution time, making it suitable for problems with a large number of cities.

    Disadvantages: - Often results in a suboptimal tour. - Tends to get trapped in local minima, especially if the nearest city choices lead to poor overall path decisions.

    Genetic Algorithm (GA)

    A Genetic Algorithm is a more sophisticated approach inspired by the process of natural selection. It is a metaheuristic that belongs to the family of evolutionary algorithms. Here’s an outline of how GA can be used to solve the TSP: - Initialisation: Generate an initial population of possible solutions (tours). Each solution is usually represented as a permutation of cities. - Evaluation: Compute the fitness of each solution. In the context of TSP, fitness is often inversely related to the total travel distance of the tour (shorter distances yield higher fitness). - Selection: Select pairs of solutions for reproduction. This is typically done using methods like tournament selection or roulette wheel selection, where better solutions have a higher chance of being chosen. - Crossover: Create new solutions (offspring) by combining parts of two parent solutions. Common crossover methods for TSP include: - Order Crossover (OX): Two parent tours are cut at random points, and the segment from one parent is inserted into the other. - Partially Mapped Crossover (PMX): Segments between two cut points are swapped between parents, with adjustments made to ensure valid tours.

    Mutation: Apply random changes to some offspring to maintain genetic diversity. Mutation methods include: - Swap Mutation: Two cities in the tour are swapped. - Inversion Mutation: A sequence of cities within the tour is reversed.

    Replacement: Form a new population by selecting the best solutions from the current population and the offspring.

    Iteration: Repeat the evaluation, selection, crossover, mutation, and replacement steps for many generations until a stopping criterion is met (e.g., a fixed number of generations or a convergence threshold).

    Advantages: - Capable of escaping local minima, increasing the likelihood of finding a near-optimal solution. - Can handle large, complex problem instances better than simple heuristics like NN.

    Disadvantages: - Computationally intensive, especially for large populations and many generations. - Requires careful tuning of parameters (e.g., population size, mutation rate) for good performance.

    Ant Colony Optimization (ACO)

    Ant Colony Optimisation (ACO) is another metaheuristic inspired by the foraging behaviour of ants, specifically how they find the shortest path to food sources. It is particularly effective for solving TSP and operates as follows:

    Initialisation: A set of artificial ants is placed on random cities, and initial pheromone levels are set on all edges (paths) between cities.

    Tour Construction: Each ant constructs a tour by moving from city to city based on a probabilistic decision rule that favours shorter paths with higher pheromone levels. The decision rule often uses a combination of pheromone levels (indicating past successful routes) and heuristic information (e.g., inverse of distance).

    Pheromone Update: After all ants have completed their tours, pheromone levels are updated. Pheromones are increased on edges that were part of shorter tours and decreased (evaporated) on all edges to avoid convergence to a suboptimal path. The update rule typically balances exploitation (following successful paths) a...

  14. Population of England 2024, by county

    • statista.com
    Updated Nov 28, 2025
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    Statista (2025). Population of England 2024, by county [Dataset]. https://www.statista.com/statistics/971694/county-population-england/
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    Dataset updated
    Nov 28, 2025
    Dataset authored and provided by
    Statistahttp://statista.com/
    Time period covered
    2024
    Area covered
    England, United Kingdom
    Description

    In 2024, over nine million people lived in Greater London, making it the most populated ceremonial county in England. The West Midlands Metropolitan County, which contains the large city of Birmingham, was the second-largest county at just over 3.03 million, closely followed by Greater Manchester at three million, and then West Yorkshire with a population of 2.4 million. Kent, Essex, and Hampshire were the three next-largest counties in terms of population, each with just over 1.9 million people. A patchwork of regions England is just one of the four countries that compose the United Kingdom of Great Britain and Northern Ireland, with England, Scotland and Wales making up Great Britain. England is therefore not to be confused with Great Britain or the United Kingdom as a whole. Within England, the next subdivisions are the nine regions of England, containing various smaller units such as unitary authorities, metropolitan counties and non-metropolitan districts. The counties in this statistic, however, are based on the ceremonial counties of England as defined by the Lieutenancies Act of 1997. Regions of Scotland, Wales, and Northern Ireland Like England, the other countries of the United Kingdom have their own regional subdivisions, although with some different terminology. Scotland’s subdivisions are council areas, while Wales has unitary authorities, and Northern Ireland has local government districts. As of 2024, the most-populated Scottish council area was Glasgow City, with over 650,000 inhabitants. In Wales, Cardiff had the largest population among its unitary authorities, and in Northern Ireland, Belfast was the local government area with the most people living there.

  15. Population of London 1981-2024

    • statista.com
    Updated Nov 28, 2025
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    Statista (2025). Population of London 1981-2024 [Dataset]. https://www.statista.com/statistics/910658/population-of-london/
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    Dataset updated
    Nov 28, 2025
    Dataset authored and provided by
    Statistahttp://statista.com/
    Area covered
    London, United Kingdom (England)
    Description

    The population of London reached over **** million in 2024, an increase of almost *** 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 *** million by 2042. London boroughs As of 2024, the London borough with the highest population was Croydon, at approximately *******, followed by Barnet at *******. 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 ******. Residents of the City of London, however, have the highest average median weekly earnings among all of London's boroughs, at ***** pounds per week, compared with just *** pounds per week in Redbridge, the lowest average weekly earnings among London boroughs. While the overall unemployment rate for London was 5** percent in early 2025, this ranged from ****percent in Newham, to just *** percent in Richmond 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 2023, the GDP of Greater London was approximately *** billion British pounds, almost a quarter of the UK's overall GDP. In the same year, GDP per person in London was ****** pounds compared with the UK average of ****** pounds. Additionally, productivity in London is far higher than the UK average. As measured by output per hour worked, London was **** percent more productive than the rest of the UK.

  16. Non-British population of the UK 2021, by nationality

    • statista.com
    Updated Nov 28, 2025
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    Statista (2025). Non-British population of the UK 2021, by nationality [Dataset]. https://www.statista.com/statistics/759859/non-british-population-in-united-kingdom-by-nationality/
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    Dataset updated
    Nov 28, 2025
    Dataset authored and provided by
    Statistahttp://statista.com/
    Area covered
    United Kingdom
    Description

    In 2020/21 there were approximately 696,000 Polish nationals living in the United Kingdom, the highest non-British population at this time. Indian and Irish were the joint second-largest nationalities at approximately 370,000 people.

  17. l

    Census 21 - Ethnicity Ward Level

    • data.leicester.gov.uk
    csv, excel, geojson +1
    Updated Jul 11, 2023
    + more versions
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    (2023). Census 21 - Ethnicity Ward Level [Dataset]. https://data.leicester.gov.uk/explore/dataset/census-21-ethnicity-ward-level/
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    csv, geojson, excel, jsonAvailable download formats
    Dataset updated
    Jul 11, 2023
    License

    Open Government Licence 3.0http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/
    License information was derived automatically

    Description

    The census is undertaken by the Office for National Statistics every 10 years and gives us a picture of all the people and households in England and Wales. The most recent census took place in March of 2021.The census asks every household questions about the people who live there and the type of home they live in. In doing so, it helps to build a detailed snapshot of society. Information from the census helps the government and local authorities to plan and fund local services, such as education, doctors' surgeries and roads.Key census statistics for Leicester are published on the open data platform to make information accessible to local services, voluntary and community groups, and residents. There is also a dashboard available that shows data relating to the wards of Leicester. Further information about the census and full datasets can be found on the ONS website - https://www.ons.gov.uk/census/aboutcensus/censusproductsEthnicityThis dataset provides Census 2021 estimates that classify usual residents in England and Wales by ethnic group. The estimates are as at Census Day, 21 March 2021.Definition: The ethnic group that the person completing the census feels they belong to. This could be based on their culture, family background, identity or physical appearance.Respondents could choose one out of 19 tick-box response categories, including write-in response options.This dataset includes data relating to the electoral wards of Leicester City.

  18. d

    SafeGraph Map Data | Global Coverage for Maps | 75M+ Places to Map

    • datarade.ai
    .csv
    Updated Mar 23, 2023
    + more versions
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    SafeGraph (2023). SafeGraph Map Data | Global Coverage for Maps | 75M+ Places to Map [Dataset]. https://datarade.ai/data-products/safegraph-map-data-global-coverage-41m-places-safegraph
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    .csvAvailable download formats
    Dataset updated
    Mar 23, 2023
    Dataset authored and provided by
    SafeGraph
    Area covered
    United States, United Kingdom
    Description

    SafeGraph Places provides baseline information for every record in the SafeGraph product suite via the Places schema and polygon information when applicable via the Geometry schema. The current scope of a place is defined as any location humans can visit with the exception of single-family homes. This definition encompasses a diverse set of places ranging from restaurants, grocery stores, and malls; to parks, hospitals, museums, offices, and industrial parks. Premium sets of Places include apartment buildings, Parking Lots, and Point POIs (such as ATMs or transit stations).

    SafeGraph Places is a point of interest (POI) data offering with varying coverage depending on the country. Note that address conventions and formatting vary across countries. SafeGraph has coalesced these fields into the Places schema.

  19. Understanding and Enhancing the Community Value of Traditional Retail...

    • datacatalogue.cessda.eu
    • datacatalogue.ukdataservice.ac.uk
    Updated Sep 26, 2025
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    Gonzalez, S; Taylor, M; Wilkinson, R; Newing, A; Buckner, L; Clarke, G; Waley, P; Watson, S; Northrop, F; Bua, A; Savage, C (2025). Understanding and Enhancing the Community Value of Traditional Retail Markets in UK Cities, 2018-2020 [Dataset]. http://doi.org/10.5255/UKDA-SN-855090
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    Dataset updated
    Sep 26, 2025
    Dataset provided by
    National Market Traders Federation
    University of Leeds
    Open University
    New Economics Foundation
    De Montfort University
    Authors
    Gonzalez, S; Taylor, M; Wilkinson, R; Newing, A; Buckner, L; Clarke, G; Waley, P; Watson, S; Northrop, F; Bua, A; Savage, C
    Time period covered
    Jul 1, 2018 - Apr 30, 2020
    Area covered
    United Kingdom
    Variables measured
    Individual, Organization, Geographic Unit, Group
    Measurement technique
    Interviews were conducted with key informants with TRM responsibilities at the UK local and national level, as well as with TRM international experts; workshops with market managers and traders were held as breakout sessions during the NABMA and NMTF annual conferences (September 2018 and April 2019 respectively); and the workshop with campaigners was organised by the research team in November 2018. (See below for the objectives of each set of semi-structured interviews).The research team developed a set of criteria to select three case study markets. These criteria stated that these three markets should be large enough to support a 500-customer survey, have strong economic, social, and cultural roles and serve a diversity of customers. The team also selected markets in which both the operator and traders were interested in and broadly supportive of the research.Survey design was undertaken by the research team, in consultation with Fieldwork Assistance, an independent market research agency. Survey piloting took place in January and February 2019. The final data collection was conducted on behalf of the University of Leeds by Fieldwork Assistance.Fieldwork Assistance collected data from up to 500 market users (denoting customers/visitors) in each market, capturing a representative sample in terms of age, gender, and ethnicity based on the best available data. At Bury Market, the survey was conducted over 30 days in March 2019; at Grainger Market, the survey was conducted over 15 days during March 2019; and at Queen’s Market, the survey was conducted over 15 days during March and April 2019. Data collection was conducted across the full range of days and hours that each market is usually open.At Queen’s Market, recruitment leaflets, information sheets, and the survey questionnaire were translated and interpreted into Bengali, Gujarati, and Urdu to secure the participation of Asian women who either did not speak English and/or would not otherwise have spoken in public to an unknown fieldworker at Queen’s Market. Interviewers were accompanied by interpreters that were recruited through the support of a local community group in Newham. Gender, age, and ethnicity quotas were established to recruit survey participants as follows:a) At Bury Market: Female: 70%, Male: 30%; 18-30 years: 10%, 31-49 years: 25%, 50-59 years: 15%, 60-69 years: 35%, 70+ years: 15%; White: 90%, Non-white: 20%.b) At Grainger Market: Female: 70%, Male: 30%; 18-30 years: 15%, 31-49 years: 20%, 50-59 years: 10%, 60-69 years: 35%, 70+ years: 20%; White: 90%, Non-white: 20%.c) At Queen’s Market: Female: 70%, Male: 30%; 18-30 years: 5%, 31-49 years: 15%, 50-59 years: 30%, 60-69 years: 30%, 70+ years: 20%; White: 20%, Asian: 55%, Black: 25%.Two 90-minute focus groups were also organised at each case study market, with survey respondents selected from typically underrepresented or vulnerable user groups, which wider academic research tells us benefit most from the community value of markets:a) At Bury Market: one focus group was run with market users over 50 years old and a second focus group with market users living in relatively more deprived areas.b) At Grainger Market: one focus group was run with market users over 50 years old and a second focus group with market users living in low-income neighbourhoods.c) At Queen’s Market: one focus group was run with female market users who described their ethnic group as Asian or Asian British and a second focus group with market users who described their ethnic group as Black or Black British.
    Description

    This dataset has been supplied by the project ‘Understanding and Enhancing the Community Value of Traditional Retail Markets in UK cities’ (Project Reference: ES/P010547/1) conducted by the University of Leeds, the Open University, the National Market Traders Federation, and the New Economics Foundation. The dataset contains interview transcripts, workshop notes, and focus group transcripts that are applicable for qualitative analysis, and survey data that is applicable for statistical analysis.

    The qualitative dataset includes transcripts of interviews, workshops, and focus groups about the community value of Traditional Retail Markets (TRM); the context and particularities of Bury Market, Grainger Market, and Queen’s Market; and the market users’ everyday life experiences of these three markets. The quantitative dataset includes the responses of Bury Market, Grainger Market, and Queen’s Market users regarding the economic, social, and cultural value of these markets from a user perspective.

    Supporting documentation for the qualitative data includes a Data listing, Information sheets, Consent forms, and Topic guides (Full list in ReadMe file). Supporting documentation for the quantitative data includes Recruitment leaflets, Information sheets, Questionnaires, and Variables description (Full list in ReadMe file). More information about the project can be found at https://trmcommunityvalue.leeds.ac.uk/.

    Traditional Retail Markets (TRM) have played a significant role in UK’s towns and cities for centuries but their central community role is threatened by radical changes in retail trends, public sector cuts and, more recently, the increased pressures created by the COVID-19 crisis. Our study provides a new way to understand the community value which traditional markets offer, which we have defined as constituted by three interconnected dimensions: 1. Economic: TRMs as places that provide affordable food, products and services as well as create opportunities for low-cost business start-ups. 2. Social: TRMs as platforms for social mobility and the development of community ties and trust leading to better social inclusion. 3. Cultural: TRMs as spaces for experiencing a diversity of cultures and ethnicities and provide a sense of place for migrants, ethnic minorities and generally vulnerable citizens.

    Between February 2018 and September 2021, this project has collected and analysed qualitative and quantitative data to propose a new understanding of the community value that markets can bring about. In addition to reviewing industry, academic, community, media and policy publications to understand the current national and international public discourse around traditional markets, we developed a mixed methods, collaborative and action-oriented research approach. We interviewed over 50 experts and ran workshops with policymakers, market traders, market operators and managers, and representatives from charity organisations and community groups. In order to gain an in-depth understanding of market users’ experiences, we surveyed 1500 market users and run 6 focus groups in three case-study markets: Bury Market, Grainger Market, and Queen's Market.

    To extend the potential of this study and have a real societal impact, we have co-produced our research with non-academic partners from the TRM sector (National Market Traders Federation, NMTF) and experts in community economics (New Economics Foundation, NEF). In this way, we have developed usable outputs and tools to support the work of all the groups we have worked with.

  20. Not seeing a result you expected?
    Learn how you can add new datasets to our index.

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Statista (2025). United Kingdom - ethnicity [Dataset]. https://www.statista.com/statistics/270386/ethnicity-in-the-united-kingdom/
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United Kingdom - ethnicity

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6 scholarly articles cite this dataset (View in Google Scholar)
Dataset updated
Nov 28, 2025
Dataset authored and provided by
Statistahttp://statista.com/
Time period covered
2011
Area covered
United Kingdom
Description

In 2011, 87.2 percent of the total population of the United Kingdom were white British. A positive net migration in recent years combined with the resultant international relationships following the wide-reaching former British Empire has contributed to an increasingly diverse population. Varied ethnic backgrounds Black British citizens, with African and/or African-Caribbean ancestry, are the largest ethnic minority population, at three percent of the total population. Indian Britons are one of the largest overseas communities of the Indian diaspora and make up 2.3 percent of the total UK population. Pakistani British citizens, who make up almost two percent of the UK population, have one of the highest levels of home ownership in Britain. Racism in the United Kingdom Though it has decreased in comparison to the previous century, the UK has seen an increase in racial prejudice during the first decade and a half of this century. Racism and discrimination continues to be part of daily life for Britain’s ethnic minorities, especially in terms of work, housing, and health issues. Moreover, the number of hate crimes motivated by race reported since 2012 has increased, and in 2017/18, there were 3,368 recorded offenses of racially or religiously aggravated assault with injury, almost a thousand more than in 2013/14.

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