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Census 2011

Census 2011
What is the Census?

Every ten years since 1801 the nation has set aside one day for the census - a count of all people and households. It is the most complete source of information about the population that we have. The latest census was held on Sunday 27 March 2011. For the first release of the Census see ONS Census 2011.

Latest Census News
Why is the Census important?
Every effort is made to include everyone, and that is why the census is so important. It is the only survey which provides a detailed picture of the entire population, and is unique because it covers everyone at the same time and asks the same core questions everywhere. This makes it easy to compare different parts of the country.

As a result, the Census provides a comprehensive picture of the social and living conditions in 2011.  It helps central and local Government, health authorities and many other organisations to target their resources more effectively and contributes to planning, housing, education, health and transport services for years to come.

In England and Wales, the census is planned and carried out by the Office for National Statistics (ONS). Elsewhere in the UK, responsibility lies with the National Records of Scotland and the Northern Ireland Statistics and Research Agency.


Timescale for Data Release
ONS will release the results of the 2011 Census in phases, as follows:
First release - 16 July 2012: This initial data is available at local authority level and comprises estimates of the usually resident population by five year age and sex bands, as well as estimates of occupied households. This release also contains information on response rates and confidence intervals to allow local authorities to assess the quality of the Census 2011 data for their areas. 

Second release - November 2012 to February 2013: Key and Quick Statistics. This release will include information on single characteristics, such as ethnic group, religion, health and provision of unpaid care, at a range of small area geographies.

Third release - March to June 2013: Local Characteristics. This release will include information on multiple characteristics, such as age and sex by economic activity, at a range of small area geographies.

Fourth release - July to October 2013: Detailed Characteristics, Detailed Themes. This release comprises detailed information on multiple characteristics, but for larger geographical areas to prevent the disclosure of personal information.

More details about the Census 2011 datasets and release prospectus can be found on the ONS website