Europe
In 2017, the population of Europe was estimated to be 742 million according to , which is slightly more than one-ninth of the world's population. This number includes Asian Russia (Siberia, about 36 million people) but excludes the European part of Turkey, Cyprus and the Transcaucasian countries.
A century ago, Europe had nearly a quarter of the world's population. The population of Europe has grown in the past century, but in other areas of the world (in particular Africa and Asia) the population has grown far more quickly. Among the continents, Europe has a relatively high population density, second only to Asia. Most of Europe is in a mode of Sub-replacement fertility, which means that each new(-born) generation is being less populous than the older.
The most densely populated country in Europe (and in the world) is the microstate of Monaco.
Ageing of Europe
Austria's Social Affairs Minister said in 2006 that, by 2010, the 55- to 64-year-old age bracket in the European Union would be larger than the 15- to 24-year-old bracket. The Economic Policy Committee and the European Commission issued a report in 2006 estimating the working age population in the EU will decrease by 48 million, a 16% reduction, between 2010 and 2050, while the elderly population will increase by 58 million, a gain of 77%.