Population Density - GCSE Geography Definition

Population density is a measure of how many people live in a certain area, usually measured in people per square kilometre. It is calculated by dividing the total population by the total area in square kilometres. It helps us understand how crowded or spacious a place might be. If an area has high population density, it means many people live close together, such as in a big city. On the other hand, low population density means fewer people spread out over a larger space, like in the countryside. Understanding population density is important in geography because it affects things like housing, transport, and services.