A population is a number of living things in an area. A city's population is the number of humans living in that city. The population includes all ages and races that live in that certain area.

Population density is the average number of people in a place. In areas with a high population density, people are close to each other. In areas with a low population density, people are far away from each other.

social sciences | насельніцтва | Население | Population | Πληθυσμός | Population Población | Population | Popolazione | Populáció | Bevolking | 人口 | Populacja | Befolkning | Populasyon | 人口 | Jîn-kháu