Population
From the Simple English Wikipedia, the free encyclopedia that anyone can change
A population is the number of living things in an area. A city's population is the number of people living in that city. These people are called inhabitants. 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 live close to each other. In areas with a low population density, people usually live far away from each other.
Usually population is about the number of animals or humans there are in a certain area.