Purpose of second address

Important information:

The true number of people recording a second address as “armed forces base address” is likely to be higher than the estimate because of instructions given to armed forces personnel. Be aware of this when using these data.

Read more about this quality notice.

Summary

This dataset provides Census 2021 estimates that classify usual residents in England and Wales with a second address by the purpose of that second address. The estimates are as at Census Day, 21 March 2021.

Variable and dataset information

Area type

Census 2021 statistics are published for a number of different geographies. These can be large, for example the whole of England, or small, for example an output area (OA), the lowest level of geography for which statistics are produced.

For higher levels of geography, more detailed statistics can be produced. When a lower level of geography is used, such as output areas (which have a minimum of 100 persons), the statistics produced have less detail. This is to protect the confidentiality of people and ensure that individuals or their characteristics cannot be identified.

Lower tier local authorities

Lower tier local authorities provide a range of local services. There are 309 lower tier local authorities in England made up of 181 non-metropolitan districts, 59 unitary authorities, 36 metropolitan districts and 33 London boroughs (including City of London). In Wales there are 22 local authorities made up of 22 unitary authorities.

Coverage

Census 2021 statistics are published for the whole of England and Wales. However, you can choose to filter areas by:

  • country - for example, Wales
  • region - for example, London
  • local authority - for example, Cornwall
  • health area – for example, Clinical Commissioning Group
  • statistical area - for example, MSOA or LSOA

Second address type

Indicates whether a person has an alternative address (somewhere they stay for more than 30 days per year) and the type of second address this is.

The 'Not applicable' classification applies to people without an alternative address.

Variables

Population type
All usual residents
Area type
Lower tier local authorities
Coverage
England and Wales
Second address type
10 Categories
  • Armed forces base address
  • Another address when working away from home
  • Holiday home
  • Student's term-time address
  • Student's home address
  • Another parent or guardian's address
  • Partner's address
  • Other
  • Second address type not specified
  • Does not apply
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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

Read more in Section 5 of our article Design for Census 2021.

Version history

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