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2011 boundaries

The digital boundaries for 2011 output areas, super output areas (LSOAs and MSOAs) and workplace zones for England and Wales are available to download. These boundaries are for users to input into their own geographical information systems to carry out spatial analysis or visualisation.

The boundaries are available in Esri Shapefile formats with some being in Keyhole Markup Language (KML), together with accompanying metadata in HTML and XML formats which can be displayed in any Internet browser.

Boundaries for each geography are created at full resolution, generalised (to 20 metres) and super generalised (to 200 metres) format. We offer two coastal extents for each of the resolutions: 'extent of the realm' (usually this is the Mean Low Water Mark but in some cases boundaries extend beyond this to include offshore islands) and 'clipped to the coastline' (Mean High Water Mark) giving the coastline a more orthodox appearance.

The boundary types produced are designed to be used in different contexts (such as analysis or visualisation). Note - output areas are not produced at super generalised resolution.

It is important that users understand which boundary type they require prior to download by reading the boundary guidance document contained in the Downloads section.

The 2011 output areas,  super output areas and workplace zone boundaries are supplied under the Open Government Licence and Ordnance Survey Open Data terms and conditions.

2011 output areas (OA) boundary

Download format
Full resolution, extent of the realm shapefile (485Mb)
Full resolution, clipped to the coastline shapefile (469Mb)
Generalised (20m), extent of the realm due January 2013
Generalised (20m), clipped to the coastline shapefile (40Mb)

All files will be downloaded in Zip format.

2011 lower layer super output areas (LSOA) boundary

Choose format to download
Full resolution, extent of the realm shapefile (220Mb) KML files due January 2013
Full resolution, clipped to the coastline shapefile (242Mb)
Generalised (20m), extent of the realm due January 2013
Generalised (20m), clipped to the coastline shapefile (25Mb)
Super generalised (200m), clipped to the coastline due January 2013

All files will be downloaded in Zip format.

2011 middle layer super output areas (MSOA) boundary

Choose format to download
Full resolution, extent of the realm shapefile (116Mb) KML files due January 2013
Full resolution, clipped to the coastline shapefile (178Mb)
Generalised (20m), extent of the realm due January 2013
Generalised (20m), clipped to the coastlne shapefile (12Mb)
Super generalised (200m), clipped to the coastline due January 2013

All files will be downloaded in Zip format.

2011 workplace zones (WZ) boundary

Download format
Full resolution, extent of the realm due January 2013
Full resolution, clipped to the coastline due January 2013
Generalised (20m), extent of the realm due January 2013
Generalised (20m), clipped to the coastline due January 2013

File Download Manager

It is suggested that a Download Manager is used to support downloading of census geography products. It is a tool that facilitates file download from the Internet. These tools are particularly useful when working with large files (such as geography spatial files) by managing the download process and managing occurrences of broken download sessions. This saves you needing to restart the download.

If you do not have a Download Manager use an Internet search engine to search 'file download manager' to discover a range of tools, both free and charged for.

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Content from the Office for National Statistics.
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