Methodology related to population estimates

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  • Mid-year population estimates QMI

    Methodology | Released on 25 June 2021

    Quality and methodology information for mid-year population estimates in England and Wales, detailing the strengths and limitations of the data, methods used, and data uses and users.

    Keywords: local authority, migrants, resident population, population forecasts, population predictions

  • Population estimates for the UK, mid-2020: methods guide

    Methodology | Released on 25 June 2021

    Methodology guidance on national and subnational mid-year population estimates for the UK and its constituent countries, which are broken down by administrative area, age, sex and components of population change.

    Keywords: international migration, internal migration, local authority, immigration, population change

  • Population estimates by output areas, electoral, health and other geographies QMI

    Methodology | Released on 9 September 2020

    Quality and methodology information for national population estimates broken down into small geographical areas (Super Output Areas, health geographies, electoral wards, Parliamentary constituencies and National Parks) in England and Wales. Details the strengths and limitations of the data, methods used, and data uses and users.

    Keywords: SAPE, LSOA, MSOA, OA, CCG

  • Methodology note on production of population estimates by output areas, electoral, health and other geographies, England and Wales: mid-2019

    Methodology | Released on 9 September 2020

    Methodology for national population estimates broken down into small geographical areas – Super Output Areas, health geographies, electoral wards, Parliamentary constituencies and National Parks.

    Keywords: SAPE, small area, 2011 Census

  • Indicative uncertainty intervals for the admin-based population estimates: July 2020

    Methodology | Released on 27 July 2020

    Simulations-based methods for producing indicative measures of statistical uncertainty for the admin-based population estimates for local authorities, by sex and single year of age.

    Keywords: demographic methods, statistical uncertainty, population estimates

  • Methodology for creating uncertainty intervals for mid-year population estimates by single year of age and sex: July 2020

    Methodology | Released on 27 July 2020

    Simulations-based methods for producing more granular measures of statistical uncertainty for mid-year population estimates, by local authority, sex and single year of age.

    Keywords: number of people, demographic mthods, population and demography

  • Population estimates by marital status and living arrangements QMI

    Methodology | Released on 17 July 2020

    Quality and methodology information for Population estimates by marital status and living arrangements, detailing the strengths and limitations of the data, methods used, and data uses and users.

    Keywords: marital status, living arrangements, population estimates

  • Population estimates for the UK, mid-2019: methods guide

    Methodology | Released on 2 July 2020

    Methodology guidance on national and subnational mid-year population estimates for the UK and its constituent countries, which are broken down by administrative area, age, sex and components of population change.

    Keywords: population change, international migration, internal migration, local authority, immigration

  • Long-Term International Migration QMI

    Methodology | Released on 28 November 2019

    Quality and methodology Information for Long-Term International Migration estimates, detailing the strengths and limitations of the data, methods used and data users and uses.

    Keywords: immigration, emigration, LTIM, International Passenger Survey, IPS

  • Calculating population estimates of the very old

    Methodology | Released on 25 September 2019

    Methods used to produce the population estimates of the very old (aged 90 years and over) by single year of age and sex, UK, England, and Wales.

    Keywords: ageing, centenarians, older people, population