National and subnational mid-year population estimates for the UK and its constituent countries by administrative area, age, sex and components of population change.

Publications

Data

Methodology

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

    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.

  • Mid-year population estimates QMI

    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.

The United Kingdom Statistics Authority has designated these statistics as National Statistics, in accordance with the Statistics and Registration Service Act 2007 and signifying compliance with the Code of Practice for Official Statistics.

Designation can be broadly interpreted to mean that the statistics:

  • meet identified user needs
  • are well explained and readily accessible
  • are produced according to sound methods
  • are managed impartially and objectively in the public interest

Once statistics have been designated as National Statistics it is a statutory requirement that the Code of Practice shall continue to be observed.