Methodology related to international migration

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.

An explanation of the methods used to produce the latest provisional experimental statistics on migration flows into and out of the UK.

Developments of methods and data used in the dynamic population model

The Census 2021 Data Asset high-level design: exploring the feasibility of maintaining an anonymised person-level longitudinal data source based on Census 2021.

A guide to using country of birth, nationality, and passports held data and statistics. Including definitions of each measure, how these are collected in different data sources and how best to use international migration statistics based on these measures.

Methods used to link refugee data to various administrative data in a pilot study led by the Office for National Statistics (ONS) and the Home Office.

Quality and Methodology Information for population of the UK by country of birth and nationality, detailing the strengths and limitations of the data, methods used, and data uses and users.

An introduction to the main concepts that underpin international migration statistics, including answers to frequently asked questions.

Quality and Methodology Information for local area migration, detailing the strengths and limitations of the data, methods used, and data uses and users.

A summary of the current methods in using the administrative data source the Registration and Population Interaction Database (RAPID) from the Department for Work and Pensions in estimating international migration.