Mid-2011 Population Estimates for Lower Layer Super Output Areas in England and Wales by Quinary Age and Sex; based on the
results of the 2011 Census.
Lower Layer Super Output Areas
Super Output Areas (SOAs) form a geographic hierarchy designed to improve the reporting of small area statistics in England and Wales. Lower Layer Super Output Areas (LSOAs) are built from
groups of 2011 Census Output Areas (OAs), typically 4 to 6, and designed to have a population of between 1,000 and 3,000 persons. These LSOAs nest within Middle Layer Super
Output Areas (MSOAs), there are typically 4 to 5 LSOAs within a MSOA.
There are 34,753 LSOAs in England and Wales (32,844 in England, 1,909 in Wales) and they were generated by a computer programme which merged OAs taking into account measures of
population size, mutual proximity and social homogeneity. These boundaries have been revised following the results of the 2011 Census and were released to the public in October 2012.
Notes and Definitions
1. These figures are consistent with the published mid-2011 local authority population estimates.
2. It is ONS policy to publish population estimates rounded to at least the nearest hundred persons. These unit-level estimates are provided to enable and encourage further calculations and
anyalysis. However, the estimates cannot be guranteed to be as exact as the level of detail implied by unit-level data. We request that data are rounded to the nearest 100 if quoted in any
publication, documentation or similar
3. The estimated resident population of an area includes all people who usually live there, whatever their nationality. People arriving into an area from outside the UK are only included in the
population estimates if their total stay in the UK is 12 months or more. Visitors and short term migrants (those who enter the UK for 3 to 12 months for certain purposes) are not included.
Similarly, people who leave the UK are only excluded from the population estimates if they remain outside the UK for 12 months or more. This is consistent with the United Nations
recommended definition of an international long-term migrant. Members of UK and non-UK armed forces stationed in the UK are included in the population and UK forces stationed outside
the UK are excluded. Students are taken to be resident at their term time address.
4. Further advice on the appropriate use of these data can be obtained by emailing firstname.lastname@example.org or phoning +44 (0) 1329 444664 and asking to speak to a statistician.
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Population Estimates Unit
Population Statistics Division
Office for National Statistics
tel: +44 (0) 1329 444664
Date supplied: 11 April 2013
|Release Edition: 1|
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