This dataset provides 2011 Census estimates of the usual resident population of England and Wales who are aged 16 and over and in employment the week before the Census. The data shows which local authority or higher area in England and Wales people live while working, and which district or higher area their workplace is located. The place at which people live while working might be a work-related second address, or their usual residence if they have no work-related second address. The estimates are as at census day, 27 March 2011. A work related second address is the residence at which people reside during the working week or other relevant working period in which they are not resident at their permanent or family home.

In order to protect against disclosure of personal information from the 2011 Census, there has been swapping of records in the Census database between different geographic areas, and so some counts will be affected. In the main, the greatest effects will be at the lowest geographies, since the record swapping is targeted towards those households with unusual characteristics in small areas.

More details on the ONS Census disclosure control strategy may be found on the http://www.ons.gov.uk/ons/guide-method/census/2011/census-data/2011-census-prospectus/new-developments-for-2011-census-results/statistical-disclosure-control/index.html[Statistical Disclosure Control] page on the ONS web site.