Population density is the number of people per unit of area, usually quoted per square kilometer or square mile, and which may include or exclude for example areas of water or glaciers.
The average density of population in different countries is very different. Generally, the density of population is high in the world’s most densely populated countries.
The average density of population in the whole world is 51 people per square km. South-Central Asia has the highest density of population followed by East and South East Asia.
