Japan vs United Kingdom: Number of children under 5

Japan
4.14 million people
in 2023
United Kingdom
3.59 million people
in 2023
Japan rank
37th
United Kingdom rank
39th

Number of children under 5 over time

  • Japan
  • United Kingdom
4.0M6.0M8.0M10.0M12.0M195019862023

How they compare

Japan currently reports 4.14 million people against 3.59 million people in United Kingdom, a difference of 550,560 people.

That makes Japan's figure about 1.2 times United Kingdom's.

Across all 74 years both countries report, Japan has been ahead every year.

Japan ranks 37th and United Kingdom ranks 39th of 236 countries.

Japan has averaged higher in every one of the 8 decades both report.

Head to head by decade

Decade Japan United Kingdom Difference Ahead
1950s 10.01 million people 4.02 million people 5.99 million people Japan
1960s 8.17 million people 4.58 million people 3.59 million people Japan
1970s 9.73 million people 3.99 million people 5.74 million people Japan
1980s 7.53 million people 3.60 million people 3.93 million people Japan
1990s 5.99 million people 3.76 million people 2.23 million people Japan
2000s 5.73 million people 3.58 million people 2.14 million people Japan
2010s 5.14 million people 4.00 million people 1.14 million people Japan
2020s 4.38 million people 3.71 million people 673,798 people Japan

Averages of every year both report within each decade.

Frequently asked questions

Which has higher number of children under 5, Japan or United Kingdom?
Japan, at 4.14 million people against 3.59 million people in United Kingdom as of 2023.
What is the difference in number of children under 5 between Japan and United Kingdom?
550,560 people, with Japan ahead.
How many years of comparable data are there for Japan and United Kingdom?
74 years are reported by both, from 1950 to 2023.
How do Japan and United Kingdom rank globally for number of children under 5?
Japan ranks 37th and United Kingdom ranks 39th of 236 countries.
Where does this data come from?
UN, World Population Prospects (2024) – processed by Our World in Data, published as Number of children under 5. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Japan vs United Kingdom: Number of children under 5. Statizoid, drawing on UN, World Population Prospects (2024) – processed by Our World in Data. Retrieved 23 September 2026, from https://reference.statizoid.com/compare/children-under-age-5/japan/united-kingdom/

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About this data

Indicator
Number of children under 5
Unit
people
Source
UN, World Population Prospects (2024) – processed by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
236 places, 17,464 data points, 1950–2023
Last refreshed

Total population, measured on 1 July of the year shown. This only includes people aged 0-4.