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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.
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Dewis pwnc arall neu clirio pob hidlydd.
What the population estimates by marital status and living arrangements cover, how we produce them, and their quality and comparability. Includes definitions and latest, past and upcoming changes.
Explores how uncertainty, as a measure of quality, can be introduced into the population estimates process, and the impact of this on local authorities.
Outline of our continuous improvement plan for mid-year population estimates for England and Wales.
This quality overview provides descriptions of the strengths and limitations of all the individual administrative (admin) data sources used directly in producing the mid-2025 population estimates (MYEs) for local authorities (LAs) in England and Wales.
A comparison of the different types of population estimates that are published or are planned for future publication.
What the population estimates statistics cover, how we produce them, and their quality and comparability. Includes definitions and latest, past and upcoming changes.
An assessment of how the coronavirus (COVID-19) pandemic affected the production and quality of population estimates for England and Wales.
The quality of the linkage of Census 2021 to the Office for National Statistics Longitudinal Study, including tracing rates, sampling fractions, and forwards and backwards linkage rates.
A research evaluation comparing the accuracy of the admin-based population estimates (ABPEs) and mid-year population estimates (MYEs) for England and Wales.
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.
