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Unpublished data

The Office for National Statistics (ONS) produces statistics from data which are collected from surveys.

However, it is the underlying unpublished data, provided by survey respondents, that is a valuable resource sought after by researchers and analysts from both public and non-public organisations and academic institutions.

The data may take the form of microdata (also known as unit record information), aggregated tabular data, commissioned tables, or bespoke datasets.

ONS provides a range of services through which customers can apply to gain access to these data.

Access to microdata and disclosive data, that is, data which have the potential to identify an individual record, requires the approval of the ONS Microdata Release Procedure (MRP) before the data can be provided.

Accessing data

Information about the different formats in which data can be obtained and details of how to apply for access can be found in each individual service's description.

For further information or advice, please contact the individual service using the contact details provided or alternatively, refer to the Access to ONS data service.

Funding for research

Researchers who require funding for their research project are advised to contact ONS to discuss their data requirements before applying for funding.

For advice, guidance and information, contact the Access to Data team - email Access2data@ons.gov.uk

Medical Research

Please note that from 1 April 2008 all new and existing Medical Research project requests are being co-ordinated by the NHS Information Centre.

For more information please see related link.

  • Census data

    General information about the census, availability of data and access

  • Business data

    Overview of business surveys including availability of data and access

  • Social survey data

    Information about unpublished social survey data including how to access the data

  • Life Events data

    Information about data on registered life events, such as birth and death, availability of data and access

  • Access to ONS data service

    Contact email and telephone numbers as well as information on the service for researchers

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© Crown Copyright applies unless otherwise stated.