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  • Numbers surviving at exact age x (lx), principal projection, England

    Released on: 15 May 2026 | Dataset

    Period and cohort numbers surviving at exact age x (lx) in England using the principal projection, by single year of age 0 to 100.

  • Population projections for local authorities by single year of age and sex, England

    Released on: 24 June 2025 | Dataset

    Population figures over a 25-year period, by single year of age and sex for local authorities in England. 2022-based datasets are the latest projection.

  • Population projections for regions by five-year age groups and sex, England

    Released on: 24 June 2025 | Dataset

    Population figures over a 25-year period, by five-year age groups and sex for regions in England. 2022-based datasets are the latest projection.

  • Comparison of international migration estimates with projections, UK and constituent countries

    Released on: 28 January 2025 | Dataset

    Comparison of net long-term international migration estimates with 1971-based to 2022-based national population projections for the UK and constituent countries, including measures of error.

  • Local authority ageing statistics, projected sex ratios for older people: time-series

    Released on: 17 August 2020 | Dataset

    Projected indicators included are derived from the published 2018-based subnational population projections for England, Wales, Scotland and Northern Ireland up to the year 2043. The indicators are the projected sex ratio for those aged 65 years and over and the projected sex ratio for those aged 85 years and over. A sex ratio shows the number of males in the population for every 100 females. This dataset has been produced by the Ageing Analysis Team for inclusion in the subnational ageing tool, which was published on July 20, 2020 (see link in Related datasets). The tool is interactive, and users can compare latest and projected measures of ageing for up to four different areas through selection on a map or from a drop-down menu. Note on data sources: England, Wales, Scotland and Northern Ireland independently publish subnational population projections and the data available here are a compilation of these datasets. The ONS publish national level data for the UK, England, Wales and England & Wales, which has been included. National level data for Scotland and Northern Ireland have been taken from their subnational population projections datasets.

  • Z5 - Zipped population projections data files - extra variants, Scotland

    Released on: 28 November 2017 | Dataset

    Open data for Scotland extra variant projections. Single year of age and sex with underlying data.

  • National Population Projections: 2014-based extra variants report

    Released on: 26 November 2015 | Article

    Population projections are uncertain and become increasingly so the further they are carried forward in time. In addition to the principal (main or central) projection, variant projections are therefore produced based on alternative assumptions of future fertility, mortality and net migration. In order to publish the principal and main variants as early as possible, publication is separated into 2 releases.

  • National Population Projections: 2014-based projections

    Released on: 29 October 2015 | Compendium

    National population projections provide an indication of the future size and age structure of the UK and its constituent countries based on a set of assumptions of future fertility, mortality and migration, including a number of variant projections based on alternative scenarios.

  • Comparison of mid-year population estimates with projections, UK and constituent countries

    Released on: 28 January 2025 | Dataset

    Comparison of mid-year population estimates with 1971-based to 2022-based national population projections for the UK and constituent countries, including measures of error.

  • Numbers surviving at exact age x (lx), principal projection, Northern Ireland

    Released on: 15 May 2026 | Dataset

    Period and cohort numbers surviving at exact age x (lx) in Northern Ireland using the principal projection, by single year of age 0 to 100.