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World population by age and region 2020

This statistic shows the proportion of selected age groups of the world population in 2020, by region. As of mid-2020, about 26 percent of the world's population were under 15 years old.

Population development

Globally, about 26 percent of the world is under 15 years of age and some nine percent is over 65 years of age. In Europe, the gap is much closer, with 16 percent of the population being under 15 years old and 19 percent being over 65 years of age. Many regions have experienced vastly decreased population growth rates with the exception of a few countries like those in the Middle East and Sub-Saharan Africa. South Sudan and Angola have some of the highest population growth rates, totaling 3.83 percent and 3.52 percent, respectively. Fertility rates are likely high in countries like these with high growth rates where women have on average five or more children. However, about 50 percent of the world’s population lives in countries with low fertility, where women have less than 2.1 children. Countries in Europe, like Latvia and Lithuania have experienced a population decline of 1.08 percent in 2017. In Europe, the majority of the population was previously working-aged adults with few dependents, but this trend is expected to reverse soon and it is predicted that by 2050, the older population will outnumber the young in many developed countries.

The global population has grown rapidly since the beginning of the Common Era when world’s population was about 300 million people. In 1950, there were about 2.53 billion people living in the world and as of 2020, there were about 7.8 billion people.

Proportion of selected age groups of world population in 2020, by region

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Release date

July 2020



Survey time period


Supplementary notes

According to the source the data from the above statistic originates from official statistical yearbooks and bulletins of the particular country. Moreover, publications of the United Nations, the Department of Economic and Social Affairs (Population Division) of the UN and the U.S. Census Bureau serve as data sources. Further sources are recent demographic studies, special studies and direct interviews with demographers and inquiries at statistical offices of the U.S. and other countries.

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