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Not all census content has been released. Check for upcoming releases in the release calendar. Alternatively, you can create a custom dataset.
Released on: 24 March 2017 | Methodology
The International Passenger Survey background notes outline dataset definitions, sample methodology, geography and purpose groupings.
Released on: 19 February 2018 | Corporate Information
Released on: 28 November 2019 | Methodology
Quality and methodology Information for Long-Term International Migration estimates, detailing the strengths and limitations of the data, methods used and data users and uses.
Released on: 18 May 2020 | Corporate Information
Released on: 04 December 2020 | Corporate Information
Released on: 27 February 2020 | Methodology
Understanding the reliability and accuracy of Long-Term International Migration estimates, including sampling distribution, sampling error, statistical significance and confidence intervals.
Released on: 05 August 2025 | Corporate Information
Released on: 27 November 2025 | Methodology
Quality and Methodology Information for long-term international migration statistics, detailing the strengths and limitations of the data, methods used, and data uses and users.
Released on: 16 November 2023 | Methodology
Administrative data sources and quality assurance in the production of admin-based long-term international migration estimates published in bi-annual releases.
An explanation of the methods used to produce the latest provisional statistics on migration flows into and out of the UK.
