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ONS Geography maintains a large number of lookup files which relate one or more geography to another. A sample of lookup files which we consider to be most frequently requested are available for download.

More information on the geographies can be found within the download files, and in the Beginner's Guide section of the website.

Product details

Look up files are in CSV or DBF format, with accompanying metadata in HTML format. CSV and DBF files can be read in MS Excel format and all common database applications, HTML files can be displayed in any internet browser.

All products contain the new 9 character coding as well as the old style coding. For further information please see the Code History Database.
Please note that Northern Ireland has not adopted the 9 character coding at present, so any information will still be in the current style coding.


Files can be downloaded free of charge.

Only the latest versions of files are available for download, but earlier versions may be available. Please contact us for details.

Content from the Office for National Statistics.
© Crown Copyright applies unless otherwise stated.