In June 2013, the United Nations Department of Economic and Social Affairs’ Population Division estimated the world population at approximately 7.2 billion. UN projections show a continued increase in population in the near future with a steady decline in population growth rate; global population is expected to reach between 8.3 and 10.9 billion by 2050.
How many people are there in the world?
The number of Christians around the world has nearly quadrupled in the last 100 years, from about 600 million in 1910 to more than 2 billion in 2010. But the world’s overall population also has risen rapidly, from an estimated 1.8 billion in 1910 to 6.9 billion in 2010.Dec 19, 2011