About this dataset

This dataset provides Census 2021 estimates that classify usual residents aged 16 years and over in England and Wales by whether or not they have previously served in the UK armed forces. This does not include people who are currently serving in the UK armed forces. The estimates are as at Census Day, 21 March 2021.

Following analysis after publishing topic summaries data, we released data at extra geography levels for some datasets.

Protecting personal data

Sometimes we need to make changes to data if it is possible to identify individuals. This is known as statistical disclosure control. In Census 2021, we:

• Swapped records (targeted record swapping), for example, if a household was likely to be identified in datasets because it has unusual characteristics, we swapped the record with a similar one from a nearby small area. Very unusual households could be swapped with one in a nearby local authority.
• Added small changes to some counts (cell key perturbation), for example, we might change a count of four to a three or a five. This might make small differences between tables depending on how the data are broken down when we applied perturbation.

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