How Many People In 2025. The year 2025 is only another 13 years from now, as i type, so a reasonable guess is that the population will increase by then to perhaps 8 billion. Today there are more than 8 billion of us.

In 1990, about 2.2 million people (about 5% of the population) were age 65 or older. Population projections (in millions) by continent from 2025 to 2100.