Top-down constrained age/sex structure estimate datasets for individual countries for 2020 at 100m spatial resolution with country totals adjusted to match the corresponding official United Nations population estimates that have been prepared by the Population Division of the Department of Economic and Social Affairs of the United Nations Secretariat (2019 Revision of World Population Prospects). Details of the input population count datasets used can be found here, and age/sex structure proportion datasets here. Please ensure that you have read our Mapping Populations overview page, and understand the differences between our 'unconstrained' and 'constrained' datasets before downloading.