This technical brief discusses the opportunity provided by the 2020 census round to significantly increase the availability of high-quality, timely and reliable data disaggregated by migratory status and other characteristics relevant in national contexts. 

This paper introduces key concepts and variables to achieve international data comparability, which requires that national statistics offices work with the same concepts and definitions. It covers essential concepts for the measurement, analysis and tabilation of internal and international migration.

This technical note is part of a series on Select Topics in International Censuses, exploring matters of interest to the international statistical community.