The meaning of POPULATION is the whole number of people or inhabitants in a country or region. How to use population in a sentence.

Population in the world is growing at a rate of around 0.84% per year in 2026 (down from 0.85% in 2025, and 0.97% in 2020). The current population increase is estimated at around 69 million people per …

POPULATION definition: the total number of people inhabiting a country, city, or any district or area. See examples of population used in a sentence.

Since each population has its own gene pool that changes and adapts to the environment over time, the population is considered to be the main organizational unit in biology.

POPULATION definition: 1. all the people living in a particular country, area, or place: 2. all the people or animals of…. Learn more.

Feb 3, 2026 · Population, in human biology, the whole number of inhabitants occupying an area (such as a country or the world) and continually being modified by increases (births and immigrations) and …

Jun 16, 2025 · Our population statistics come from decennial censuses, which count the entire U.S. population every ten years, along with several other surveys. Focusing on a population’s age and …

Definition of population noun in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

If you refer to a particular type of population in a country or area, you are referring to all the people or animals of that type there.

A group of individuals of the same species occupying a specific habitat, community, or other defined area: the population of turtles in a pond; the elk population in their winter range.