As Nigeria joins countries of the world to mark the 2015 World Population Day, WPD, today, with theme “Vulnerable Population in Emergencies,” United Nations Department of Economic and Social Affairs, Population Division said that Nigeria is one of the 20 largest countries by population with total figure of 183,684,515.
The department also estimated that Nigeria’s population is expected to surpass the US population in 2045 to become the third-most populous country in the world, starting to rival China by the end of the century, with almost 1 billion people in 2100.
The United Nations Population Fund, UNFPA, said the tremendous interest generated by the Day of 5 billion on July 11, 1987 led to the establishment of World Population Day as an annual event.
It also stated that for more than 20 years the occasion has been marked to spotlight the significance of population trends and related issues.
According to the department report, the world population (the total number of living humans on Earth) was 7.244 billion as of July 2014 and it is projected to reach 7.325 billion this July 2015. In its’ report, the world population is said to be currently growing at a rate of around 1.14 percent per year.
The average population change is currently estimated at around 80 million per year.
UN Secretary General, Ban Ki-Moon, in his remark urged commitment in 2015 to building resilience, peace, and sustainable prosperity.
Ban Ki-Moon observed that not since the end of the Second World War have so many people been forced from their homes across the planet.

READ ALSO  US spending bill tightens visa waiver programme