The following list of countries by age structure sorts the countries of the world according to the age distribution of their

population Population typically refers to the number of people in a single area, whether it be a city or town, region, country, continent, or the world. Governments typically quantify the size of the resident population within their jurisdiction using a ...

. The population is divided into three groups: * Ages 0 to 14 years:

children A child ( : children) is a human being between the stages of birth and puberty, or between the developmental period of infancy and puberty. The legal definition of ''child'' generally refers to a minor, otherwise known as a person younger ...

. * Ages 15 to 64 years:

working population The workforce or labour force is a concept referring to the Pooling (resource management), pool of human beings either in employment or in unemployment. It is generally used to describe those working for a single types of companies, company or ...

or adults. * Over the age of 65:

elderly Old age refers to ages nearing or surpassing the life expectancy of human beings, and is thus the end of the human life cycle. Terms and euphemisms for people at this age include old people, the elderly (worldwide usage), OAPs (British usage ...

senior citizens Old age refers to ages nearing or surpassing the life expectancy of human beings, and is thus the end of the human biological life cycle, life cycle. Terms and euphemisms for people at this age include old people, the elderly (worldwide usage ...

. The age structure of a country has a strong impact on society and the economy. If the proportion of 0–14-year-olds is very high, there may be a so-called

youth bulge A population pyramid (age structure diagram) or "age-sex pyramid" is a graphical illustration of the distribution of a population (typically that of a country or region of the world) by age groups and sex; it typically takes the shape of a pyramid ...

. If, on the other hand, the proportion of over 65 is very high, the social systems of a country can be heavily burdened.

List

All numbers are for the year 2020. Source is

The World Factbook ''The World Factbook'', also known as the ''CIA World Factbook'', is a reference resource produced by the Central Intelligence Agency (CIA) with almanac-style information about the countries of the world. The official print version is available ...

Visual statistic

Visualization based on data above

References

{{DEFAULTSORT:Countries by age structure

Age structure A population pyramid (age structure diagram) or "age-sex pyramid" is a graphical illustration of the distribution of a population (typically that of a country or region of the world) by age groups and sex; it typically takes the shape of a pyramid ...

Demographic lists