Which has higher median age vs. births per woman, Japan or Saint Helena?

Saint Helena, at 50.45 years against 48.96 years in Japan as of 2023.

What is the difference in median age vs. births per woman between Japan and Saint Helena?

1.49 years, with Saint Helena ahead.

How many years of comparable data are there for Japan and Saint Helena?

74 years are reported by both, from 1950 to 2023.

Where does this data come from?

UN, World Population Prospects (2024) – processed by Our World in Data, published as Median age vs. births per woman. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Japan vs Saint Helena: Median age vs. births per woman

Japan

48.96 years

in 2023

Saint Helena

50.45 years

in 2023

Japan rank

4th

Saint Helena rank

3rd

Median age vs. births per woman over time

Japan
Saint Helena

How they compare

Saint Helena currently reports 50.45 years against 48.96 years in Japan, a difference of 1.49 years.

The two have swapped places 3 times across 74 shared years of data; in 1950 it was Japan ahead.

Japan ranks 4th and Saint Helena ranks 3rd of 236 countries.

Across the 8 decades both report, Japan averaged higher in 6 and Saint Helena in 2.

Head to head by decade

Decade	Japan	Saint Helena	Difference	Ahead
1950s	22.65 years	17.73 years	4.93 years	Japan
1960s	26.36 years	19.59 years	6.77 years	Japan
1970s	29.59 years	21.12 years	8.48 years	Japan
1980s	34.14 years	24.64 years	9.5 years	Japan
1990s	38.73 years	30.9 years	7.83 years	Japan
2000s	42.34 years	40.55 years	1.79 years	Japan
2010s	45.69 years	46.13 years	0.4391 years	Saint Helena
2020s	48.33 years	49.96 years	1.64 years	Saint Helena

Averages of every year both report within each decade.

Frequently asked questions

Which has higher median age vs. births per woman, Japan or Saint Helena?: Saint Helena, at 50.45 years against 48.96 years in Japan as of 2023.
What is the difference in median age vs. births per woman between Japan and Saint Helena?: 1.49 years, with Saint Helena ahead.
How many years of comparable data are there for Japan and Saint Helena?: 74 years are reported by both, from 1950 to 2023.
How do Japan and Saint Helena rank globally for median age vs. births per woman?: Japan ranks 4th and Saint Helena ranks 3rd of 236 countries.
Where does this data come from?: UN, World Population Prospects (2024) – processed by Our World in Data, published as Median age vs. births per woman. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Japan vs Saint Helena: Median age vs. births per woman. Statizoid, drawing on UN, World Population Prospects (2024) – processed by Our World in Data. Retrieved 31 August 2026, from https://population.statizoid.com/compare/median-age-vs-births-per-woman/japan/saint-helena/

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About this data

Indicator: Median age vs. births per woman
Unit: years
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: 28 August 2026

Age that divides the population into two halves of equal size — half are younger and half are older.