Telephone: +44 (0)1329 444972
Frequency of release: Decennial
Geographical coverage: England and Wales
Geographical breakdown: Output Area, Super Output Area and Data Zone, Ward and Electoral District
Survey name(s): Census
Output areas (OAs) are the lowest level of geography produced across all census topics.
OAs contain approximately equal numbers of usual residents, and are intended to provide geographies that allow reporting of statistics across time on a consistent geographical base.
Changes to the 2001 OAs were kept to a minimum with 2.6 per cent of OAs being changed using the 2011 Census data.
In 2011 there were 181,408 output areas (OAs), 34,753 lower layer super output areas (LSOAs), 7,201 middle layer super output areas (MSOAs) and 8,570 electoral wards/divisions in England and Wales.
The average population in England and Wales on 27 March 2011 was 309 in OAs, 1,614 in LSOAs, 7,787 in MSOAs and 6,543 in electoral wards/divisions.
The average number of households in England and Wales on 27 March 2011 was 129 in OAs, 672 in LSOAs, 3,245 in MSOAs and 2,726 in electoral wards/divisions.
This release, the 2011 Census population and household estimates for wards and output areas in England and Wales is the first release of small area statistics from the 2011 Census. It provides additional information to supplement the first results from the 2011 Census that were published 16 July 2012 and included similar estimates for local authorities.
The release provides estimates of:
The usually resident population of England and Wales, by five-year age group and sex.
The number of households with at least one usual resident.
The number of household residents and residents of communal establishments.
Average household size.
Results are presented for Output Areas, Middle Layer and Lower Layer Super Output Areas and wards in England and Wales. The results for constituent countries, regions, counties, London boroughs, districts and unitary authorities that were included in the first release of unrounded census estimates in September 2012 are also included.
In addition to the tables and commentary, data visualisations to aid interpretation of the figures are also available.
Further results from the census will be released later in the year, and statistics for the whole of the UK will be compiled and published by ONS after each of the three census offices in England and Wales, Scotland and Northern Ireland publishes the relevant data.
Further information about the census estimates, including details about the methodology used and information about how other population sub-groups are counted and defined, is available in the Definitions and supporting information.
Further information on the fitness for purpose of the statistics in this release can be found in the Quality and Methodology Information paper (157.6 Kb Pdf) .
These National Statistics are produced to high professional standards and released according to the arrangements approved by the UK Statistics Authority.