Key Global Trends

Population Change by Region, 2015-35

The world’s population will probably grow by about 20 percent between 2015 and 2035, according to UN projections. However, this growth will be unevenly distributed. The population of Africa, with a per capita income average of only about $5,000—despite including a number of dynamic, growing economies—will grow by nearly three-fifths; by contrast, the population of Europe, with an average income more than six times as large as Africa’s, will actually decline without substantial inflows of migrants from other regions.

Graph showing Population Change by Region, 2015-35

aPer capita GDP for 2015 in purchasing power parity (PPP) dollars.
Sources: UN population data (median projection); International Monetary Fund.