plate 007 · Humanity

The world has already passed peak child

Children under 5 worldwide, millions, UN estimates and medium projection.

698M in 2017

The number of young children on Earth peaked in 2017. By 2024 it was 647 million.

−21% by 2100

The UN projects 550 million under-5s in 2100, far below the peak.

2.2 billion

People aged 65+ are projected to reach 2.2 billion by the late 2070s, outnumbering under-18s.

Source UN DESA, World Population Prospects 2024 (medium variant) ·Data 2024 revision ·Fact·Forecast
the numbers
The world has already passed peak child. Source: UN DESA, World Population Prospects 2024 (medium variant), 2024 revision.
YearChildren under 5 (M)
2015696
2017698
2020683
2024647
2030645
2050656
2100550
source notes & method

Values via Yang Liu's WPP 2024 tabulation and StatisticsTimes; 2026 value 642M. Under-5 values before 2015 not shown. 65+ crossover from UN WPP 2024 Key Messages.

Published 20 Sep 2026