World population facts for kids

World population estimates from 1800 to 2100, based on UN 2010 projections (red, orange, green) and US Census Bureau historical estimates (black). According to the highest estimate, the world population may rise to 16 billion by 2100; according to the lowest estimate, it may decline to only 6 billion.

The world's population is increasing all the time because more people are being born than are dying. The population of the world can be changed by other causes such as extinction level events, and natural and un-natural disasters (e.g., earthquakes, war). In January 2012 the United Nations said the Earth's population had reached 7 billion.

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Images for kids

Population growth graph generated with data supplied by World Bank, via Google
World population percentage by country
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Population density (people per km2) map of the world in 1994. Red and pink areas denote regions of highest population density.
Greater Los Angeles lies on a coastal mediterranean savannah with a small watershed that is able to support at most one million people on its own water; as of 2015, the area has a population of over 18 million. Researchers predict that similar cases of resource scarcity will grow more common as the world population increases.
The human population has been growing rapidly since the mid-1800s.
Illegal slash-and-burn agriculture in Madagascar, 2010
India is anticipated to overtake China as the world's most populous country by 2022.
Estimated world population figures, 10,000 BC–2000 CE (in log y scale)

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