As of September 2014, there are 7.25 billion people in the world. The population of the world is currently growing at a rate of 1.4 percent per year, which translates to an estimated 80 million people a year.
The most populous country in the world is China, with a population at 1.39 billion people. India is a close second at 1.26 billion people. Worldwide growth rates are currently in a decline and have been since 1963. It is predicted that the global growth rate will shrink to only 1 percent by 2020 and fall to less than half a percent by 2050.