Population density

Population density (people per square kilometre) by country in 2023
Population density (people per square kilometre) map of the world in 1994. In relation to the equator it is seen that the vast majority of human population lives in the Northern Hemisphere, where 67% of Earth's land area is.

Population density is a measurement of population size per unit land area. It is mostly applied to humans, but sometimes to other living organisms too. It is a key concept in population geography. In botany and agronomy, it is known as plant density.

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