World Age structure

Factbook > Countries > World > Demographics

Age structure: 0-14 years: 25.18% (male 1,010,373,278/female 946,624,579)

15-24 years: 15.29% (male 614,046,344/female 574,513,854)

25-54 years: 40.6% (male 1,597,805,095/female 1,557,807,873)

55-64 years: 9.23% (male 351,094,945/female 366,240,730)

65 years and over: 9.69% male 337,244,947/female 415,884,753) (2021 est.)

Definition: This entry provides the distribution of the population according to age. Information is included by sex and age group as follows: 0-14 years (children), 15-24 years (early working age), 25-54 years (prime working age), 55-64 years (mature working age), 65 years and over (elderly). The age structure of a population affects a nation's key socioeconomic issues. Countries with young populations (high percentage under age 15) need to invest more in schools, while countries with older populations (high percentage ages 65 and over) need to invest more in the health sector. The age structure can also be used to help predict potential political issues. For example, the rapid growth of a young adult population unable to find employment can lead to unrest.

Source: CIA World Factbook - This page was last updated on Saturday, September 18, 2021

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