Which has higher average age of mothers at childbirth, Japan or Libya?

Japan, at 31.91 years against 31.89 years in Libya as of 2023.

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

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

Where does this data come from?

Human Fertility Database (2025); UN, World Population Prospects (2024) – processed by Our World in Data, published as Average age of mothers at childbirth. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Japan vs Libya: Average age of mothers at childbirth

Japan

31.91 years

in 2023

Libya

31.89 years

in 2023

Japan rank

16th

Libya rank

18th

Average age of mothers at childbirth over time

Japan
Libya

How they compare

Japan currently reports 31.91 years against 31.89 years in Libya, a difference of 0.02 years.

The two have swapped places 1 time across 74 shared years of data; in 1950 it was Libya ahead.

Japan ranks 16th and Libya ranks 18th of 236 countries.

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

Head to head by decade

Decade	Japan	Libya	Difference	Ahead
1950s	28.94 years	29.91 years	0.9694 years	Libya
1960s	27.8 years	29.91 years	2.11 years	Libya
1970s	27.6 years	29.91 years	2.31 years	Libya
1980s	28.24 years	31.23 years	2.99 years	Libya
1990s	29.32 years	32.74 years	3.42 years	Libya
2000s	29.98 years	32.23 years	2.26 years	Libya
2010s	31.07 years	31.81 years	0.7346 years	Libya
2020s	31.79 years	31.87 years	0.0815 years	Libya

Averages of every year both report within each decade.

Frequently asked questions

Which has higher average age of mothers at childbirth, Japan or Libya?: Japan, at 31.91 years against 31.89 years in Libya as of 2023.
What is the difference in average age of mothers at childbirth between Japan and Libya?: 0.02 years, with Japan ahead.
How many years of comparable data are there for Japan and Libya?: 74 years are reported by both, from 1950 to 2023.
How do Japan and Libya rank globally for average age of mothers at childbirth?: Japan ranks 16th and Libya ranks 18th of 236 countries.
Where does this data come from?: Human Fertility Database (2025); UN, World Population Prospects (2024) – processed by Our World in Data, published as Average age of mothers at childbirth. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Japan vs Libya: Average age of mothers at childbirth. Statizoid, drawing on Human Fertility Database (2025); UN, World Population Prospects (2024) – processed by Our World in Data. Retrieved 26 September 2026, from https://reference.statizoid.com/compare/period-average-age-of-mothers/japan/libya/

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About this data

Indicator: Average age of mothers at childbirth
Unit: years
Source: Human Fertility Database (2025); UN, World Population Prospects (2024) – processed by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 236 places, 17,683 data points, 1891–2023
Last refreshed: 18 September 2026

Mean age of mothers at the birth of their children if women were subject throughout their lives to the age-specific fertility rates observed in a given year.