In 2015, the Population Division of the United Nations Department of Economic and Social Affairs listed Germany as host to the List of sovereign states and dependent territories by immigrant population, about 5% or 12 million of all 244 million migrants. Germany ranks List of countries by immigrant population and 37th globally in terms of the percentage of migrants who made up part of the countrys population. , the largest national group was from Turkey (2,859,000), followed by Poland (1,617,000), Russia (1,188,000), and Italy (764,000). 740,000 people have Afro-Germans origins, an increase of 46% since 2011. Since 1987, around 3 million ethnic Germans, mostly from the former Eastern Bloc countries, have exercised their German Law of Return and emigrated to Germany.. Which immigrant population is the largest in Germany?