World Population Day is an annual event which seeks to raise awareness of global population issues.
It is observed on July 11 every year.
The event has been celebrated for almost three decades.
The Governing Council of the United Nations Development Programme recommended its introduction in 1989.
July 11, 1987, was the day when the world’s population reached 5 billion.
The theme of this year's World Population Day is 'Leave no one behind, count everyone'.