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Data sources and limitations

This section describes the key sources and limitations of data on migration in the UK.

For an explanation of how the Office for National Statistics (a source for a large amount of the data we use on this website) collects data on immigration, please see the interview with Emma Wright, Head of Population Analysis in the Population Statistics Division at the ONS.

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This Migration Observatory is kindly supported by the following organisations.

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  • COMPAS logo
  • Esmee Fairbairn logo
  • Barrow Cadbury logo
  • Paul Hamlyn Foundation logo