Methodology related to amcangyfrifon poblogaeth

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

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

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

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

Details the strengths, limitations, uses, users and methods used for Census 2021, England and Wales.

A comparison of the different types of population estimate that are planned for or are published in 2022 and early 2023. 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.

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

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

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.