Did you know? - Fascinating facts and useful trivia factoids about people, products and places

World population facts

World population

The US Census Bureau reported that the 6 billionth person was born at 1.24am on Sunday 18 July 1999. The United Nations however, had set that landmark at 12 October 1999.

Woman and child
Every day 200 million couples make love, 400,000 babies are born, and 140,000 people die, 25,000 because of starvation.
Woman and child in Africa

Every second 5 people are born and 2 people die, a net gain of 3 people. At this rate, the world population will double every 40 years and would be 12 billion in 40 years, 24 billion in 80 years, and more than 48 billion in 120 years. However the United Nations estimate that world population will stabalize at 12 billion in 120 years, citing that effective family planning will result in a universally low birth rate. Education plays a key role: almost half of the 6 billion people are under age 25.

At the beginning of the second millennium (1000 AD) the world population was 400 million. In 1750 there were about 800 million people in the world. In 1850 there were a billion more, and by 1950, another billion. Then it took just 50 years to double to 6 billion. In another 50 years the world population is expected to be 9 billion, which means that a decrease in growth of the world population is expected.

The recent global population explosion is not only the consequence of increased birth rates but also the result of an unprecedented decrease in death rate. Significant advances in public health and medicine, phenomenal agricultural yields and the expanding global economy contributed to the population explosion as the lifespan average continues to increase.

Only one in ten people lived in cities in 1900. By 1994 the figure had grown to one of every two people, creating megalopolies of millions to tens of millions inhabitants. More than 200 cities have a population of more than a million people. Managing such large cities, and better management of the planet’s resources, could become the most difficult problem of this century.

In spite of the population increase and desertification, famines have actually become less frequent in the past 200 years. The famines in Africa seen on TV are due to the political strife and civil wars that disorganize the economy, paralyze transportation, and prevent emergency food drops. See the current conflicts between countries

World population Day is celebrated on 11th July.

Countries Ranked by Population: 1999
Countries Ranked by Population: 2020
Country Population Country Population

1. China
2. India
3. USA
4. Indonesia
5. Brazil
6. Russia
7. Pakistan
8. Bangladesh
9. Japan
10. Nigeria


1. China
2. India
3. USA
4. Indonesia
5. Brazil
6. Pakistan
7. Nigeria
8. Bangladesh
9. Russia
10. Mexico


Source: US Census Bureau, International Data Base.