Japan vs OECD members: Population ages 0-14, total

Japan
13.86 million
in 2025
OECD members
230.64 million
in 2025
Japan rank
29th
OECD members rank
29th

Population ages 0-14, total over time

  • Japan
  • OECD members
0100.0M200.0M300.0M196019922025

How they compare

OECD members currently reports 230.64 million against 13.86 million in Japan, a difference of 216.78 million.

That makes OECD members's figure about 16.6 times Japan's.

Across all 66 years both countries report, OECD members has been ahead every year.

Japan ranks 29th and OECD members ranks 29th of 217 countries.

OECD members has averaged higher in every one of the 7 decades both report.

Head to head by decade

Decade Japan OECD members Difference Ahead
1960s 25.26 million 255.43 million 230.17 million OECD members
1970s 26.10 million 266.61 million 240.50 million OECD members
1980s 25.93 million 258.61 million 232.68 million OECD members
1990s 20.04 million 254.14 million 234.10 million OECD members
2000s 17.68 million 248.18 million 230.50 million OECD members
2010s 16.42 million 244.08 million 227.67 million OECD members
2020s 14.66 million 236.05 million 221.39 million OECD members

Averages of every year both report within each decade.

Frequently asked questions

Which has higher population ages 0-14, total, Japan or OECD members?
OECD members, at 230.64 million against 13.86 million in Japan as of 2025.
What is the difference in population ages 0-14, total between Japan and OECD members?
216.78 million, with OECD members ahead.
How many years of comparable data are there for Japan and OECD members?
66 years are reported by both, from 1960 to 2025.
How do Japan and OECD members rank globally for population ages 0-14, total?
Japan ranks 29th and OECD members ranks 29th of 217 countries.
Where does this data come from?
Staff estimates, World Bank (WB), note: Staff estimates using the World Bank's total population and age/sex distributions of the United Nations Population Division's World Population Prospects., publi, published as Population ages 0-14, total. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Japan vs OECD members: Population ages 0-14, total. Statizoid, drawing on Staff estimates, World Bank (WB), note: Staff estimates using the World Bank's total population and age/sex distributions of the United Nations Population Division's World Population Prospects., publi. Retrieved 23 August 2026, from https://health.statizoid.com/compare/population-ages-0-14-total/japan/oecd-members/

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About this data

Indicator
Population ages 0-14, total
Source
Staff estimates, World Bank (WB), note: Staff estimates using the World Bank's total population and age/sex distributions of the United Nations Population Division's World Population Prospects., publi
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
265 places, 17,460 data points, 1960–2025
Last refreshed

Total population between the ages 0 to 14. Population is based on the de facto definition of population, which counts all residents regardless of legal status or citizenship.