Methodology related to population estimates

Methodology for the coverage adjustment of Census 2021 in England and Wales.

Matching Census 2021 to the Census Coverage Survey (CCS) using deterministic, probabilistic, associative, machine learning and clerical methods.

How we maximised the quality of Census 2021 population estimates during the processing and quality assurance of the final statistics.

Methodology for the alternative household estimate and how we used it to validate final dual system estimation (DSE) estimates.

The methods the Office for National Statistics (ONS) will use to assess the benefits of Census 2021 data for users, including central and local government, private and voluntary sectors.

The model selection process and chosen models for coverage estimation of Census 2021 in England and Wales.

Methodology for coverage estimation of Census 2021 in England and Wales.

The methods for resolving item non-response and item inconsistencies in Census 2021 data, including deterministic editing, nearest neighbour donor imputation, and manual imputation.

Methodology for the validation of the Census 2021 population estimates for each local authority, as part of the wider quality assurance of the census data.

Methodology for the validation of Census 2021 population estimates for England and Wales, including the assurance of processes, assessment of estimates, and involvement of local authorities.