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Population density

Measurement of population per unit area or unit volume / From Wikipedia, the free encyclopedia

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Population density (in agriculture: standing stock or plant density) is a measurement of population per unit land area. It is mostly applied to humans, but sometimes to other living organisms too. It is a key geographical term.[1] In simple terms, population density refers to the number of people living in an area per square kilometre, or other unit of land area.

Population density (people per km2) by country or U.S. state in 2019
Population density (people per km2) 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, as 67% of Earth's land area is there.