Methodology related to population estimates

90 methodology , sorted by release date

Refine results

Clear all

Need an earlier release?

We moved them to The National Archives website, to keep this website as responsive as possible.

Please note: all historical data is still on this website.

  • Population statistics and sources guide

    Methodology | Released on 17 November 2023

    A comparison of the different types of population estimate that are published on the ONS website or planned for future publication. Includes information about whether these are official estimates of the population or used only for wider research, as well as the sources, coverage and main uses and comparability issues for the estimate.

    Keywords: census 2021, population statistics transformation

  • Welsh language quality information for Census 2021

    Methodology | Released on 26 October 2023

    Quality information affecting Welsh language data from Census 2021 to help correctly interpret them.

  • Demography and migration quality information for Census 2021

    Methodology | Released on 6 September 2023

    Known quality information affecting demography, migration and international migration data from Census 2021 in England and Wales.

    Keywords: demography, migration, census, quality information, demography, migration, census, quality information, quality concerns

  • Improving the accuracy of the Census 2021 data by resolving multiple responses (RMR)

    Methodology | Released on 22 June 2023

    Methodology for resolving multiple responses in Census 2021 data.

    Keywords: data capture, coding, cleaning, respondent error

  • Automated text coding: Census 2021

    Methodology | Released on 3 April 2023

    Automated coding methods for write-in text responses from the Census 2021 online questionnaire and their results.

    Keywords: indexes, search-as-you-type, variables

  • Measures showing the quality of Census 2021 estimates

    Methodology | Released on 14 March 2023

    Measures and interactive tools showing the quality and quality assurance of Census 2021 data in England and Wales.

    Keywords: comparison tool, response rate, local authority, population

  • Protecting personal data in Census 2021 results

    Methodology | Released on 9 March 2023

    How and why the Office for National Statistics (ONS) carried out statistical disclosure control on Census 2021 data.

    Keywords: confidentiality, responses, dissemination

  • Census Quality Survey for Census 2021 in England and Wales

    Methodology | Released on 7 March 2023

    Quality information on respondent error in Census 2021 in England and Wales to help users correctly interpret the census results.

    Keywords: response, survey, interview, linkage

  • Evaluation of addressing quality: Census 2021

    Methodology | Released on 9 January 2023

    Summary of the work conducted to build the Census 2021 address frame and an evaluation of the frame's quality.

    Keywords: collection, AddressBase premium, households, statistical design

  • Communal establishment (CE) estimation and adjustment: Census 2021

    Methodology | Released on 5 January 2023

    Methodology and results of the small and large communal establishment (CE) estimation processes for Census 2021.

    Keywords: usual resident, halls, schools, institution, uni, methods