Africa's population share has accelerated from 9.3% in 1955 to 18.8% in 2025

  • Africa’s share of the global population has more than doubled, from 9.3% in 1955 to an estimated 18.8% in 2025.
  • The most rapid growth has occurred since 2000, increasing from 13.5% to 18.8% over 26 years.
  • Between 1980 and 2000, Africa’s share rose modestly from 10.9% to 13.5%.
  • The most significant 20-year gain occurred between 2000 and 2020, with an increase of 4 percentage points.
  • Population growth in Africa contrasts with stagnation or decline in many other parts of the world.

Africa’s share of the global population has risen over the past seven decades, with growth accelerating sharply in recent years. From just 9.3% in 1955, the continent’s share has climbed to an estimated 18.8% in 2025. The most significant surge has occurred since the year 2000, when Africa accounted for 13.5% of the world’s population, marking a 5.3 percentage-point jump in just 26 years.

The acceleration since the turn of the millennium has been striking. Between 2000 and 2020, Africa’s share rose from 13.5% to 17.5%, and the upward trend continued into the 2020s. This growth means Africa plays an increasingly central role in shaping global demographics, labour markets, and future economic trends.

This demographic expansion brings both opportunities and challenges. With a larger share of the world’s people, Africa’s influence on global consumption, innovation, and cultural exchange is set to grow, but so too is the responsibility to ensure that economic structures, education systems, and infrastructure keep pace with population needs.

Source:

Worldometer

Period:

1955-2025
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Africa’s under-15 population: 16 of every 100 people aged 0–14 across 54 African countries lived in Nigeria in 2025
  • Nigeria had 96.25 million children aged 0–14 in 2025, the largest child population in Africa.
  • 16% of Africa’s children lived in Nigeria, or roughly 1 in every 6.
  • Ethiopia and DR Congo followed with 52.54 million and 51.85 million children respectively.
  • Africa’s 10 largest child populations accounted for 60.9% of the continent’s 600.17 million children.

Africa’s under-15 population: nearly half the population of the Central African Republic is under 15
  • Central African Republic had Africa’s highest 0–14 population share at 48.7%.
  • Somalia, Niger, Chad and DR Congo followed, all with at least 45.9% of their populations aged 0–14.
  • DR Congo had Africa’s largest 0–14 population at 51.85 million, despite ranking fifth by share.
  • Children aged 0–14 made up 38.8% of Africa’s population, versus 40.5% in Nigeria.

Twelve African countries have gone at least a decade without completing a new population census
  • Twelve African countries have not completed a census in at least 10 years.
  • DR Congo (42 years) and Somalia (40 years) have Africa's oldest censuses.
  • Guinea-Bissau has completed a new census, while Cameroon and Chad are still counting.
  • Nigeria and DR Congo are preparing new censuses, but fieldwork has not begun.
  • South Sudan's census is disputed, while Eritrea is excluded from the ranking.

Mauritius has almost as many elderly people as children: 97 for every 100
  • Mauritius had 97 elderly people per 100 children in 2025, over 11 times Africa’s median of 8.5.
  • Its ratio increased from fewer than seven in 1960 to 24 in 2000, becoming Africa’s highest in 2009.
  • Seychelles ranked second with 44 elderly people per 100 children, followed by Tunisia with 42.
  • Mauritius’s child share fell from 25.6% to 14.5% between 2000 and 2025, while its elderly share increased from 6.1% to 14.1%.
  • Nigeria’s ratio moved from 6.9 to 7.6 between 2000 and 2025, placing it 38th among 54 countries.

Lagos, Kano, Abuja, and Ibadan are among Africa’s most populous cities with a combined population of 31.3 mn
  • Lagos is Africa’s third-largest city and ranks 14th globally.
  • Cairo remains Africa’s largest city, with over 23 million people, keeping Egypt at the centre of the continent’s urban network.
  • Kinshasa’s position shows Central Africa’s rising urban influence.
  • There is a steep population gap after the top three cities.

3 African cities feature in the 20 most populous cities globally, with a total population of 59.9 million
  • Together, the top three cities — Tokyo, Delhi, and Shanghai — have more than 100 million residents.
  • Asia dominates the ranking, with most of the top ten cities located on the continent.
  • Only three African cities — Cairo, Kinshasa, and Lagos — appear in the top 20.
  • Africa’s three mega-cities together account for nearly 60 million people, showing concentrated urban growth.
  • Urban population growth is driven by migration toward economic and commercial hubs.

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