The supplementary information in this document contains a more detailed account of data, methods and results developed in the KNOMAD Working Paper No 59, Th. Buettner, R. Muenz. 2024. “The Impact of Migration on Future Population Global demographic projections with integrated immigration and emigration assumptions.” This technical paper covers the data used, their preparation for an integrated multi-state population projection, and more results of both forecasting of bilateral migration estimates and population projections until 2050 for 194 countries.