How many years of comparable data are there for Monaco and Saint Martin (French part)?

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.

Monaco vs Saint Martin (French part): Average age of mothers at childbirth

Monaco

30.85 years

in 2023

Saint Martin (French part)

30.83 years

in 2023

Monaco rank

45th

Saint Martin (French part) rank

47th

Average age of mothers at childbirth over time

Monaco
Saint Martin (French part)

How they compare

Monaco currently reports 30.85 years against 30.83 years in Saint Martin (French part), a difference of 0.02 years.

The two have swapped places 3 times across 74 shared years of data; in 1950 it was Saint Martin (French part) ahead.

Monaco ranks 45th and Saint Martin (French part) ranks 47th of 236 countries.

Across the 8 decades both report, Monaco averaged higher in 4 and Saint Martin (French part) in 4.

Head to head by decade

Decade	Monaco	Saint Martin (French part)	Difference	Ahead
1950s	28.19 years	29.91 years	1.72 years	Saint Martin (French part)
1960s	27.97 years	30 years	2.02 years	Saint Martin (French part)
1970s	28.01 years	28.85 years	0.8398 years	Saint Martin (French part)
1980s	28.56 years	28.56 years	0.0012 years	Saint Martin (French part)
1990s	29.49 years	28.84 years	0.6527 years	Monaco
2000s	30.03 years	29.38 years	0.652 years	Monaco
2010s	30.77 years	29.97 years	0.7977 years	Monaco
2020s	30.87 years	30.81 years	0.0637 years	Monaco

Averages of every year both report within each decade.

Frequently asked questions

Which has higher average age of mothers at childbirth, Monaco or Saint Martin (French part)?: Monaco, at 30.85 years against 30.83 years in Saint Martin (French part) as of 2023.
What is the difference in average age of mothers at childbirth between Monaco and Saint Martin (French part)?: 0.02 years, with Monaco ahead.
How many years of comparable data are there for Monaco and Saint Martin (French part)?: 74 years are reported by both, from 1950 to 2023.
How do Monaco and Saint Martin (French part) rank globally for average age of mothers at childbirth?: Monaco ranks 45th and Saint Martin (French part) ranks 47th 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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Monaco vs Saint Martin (French part): 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 30 August 2026, from https://reference.statizoid.com/compare/period-average-age-of-mothers/monaco/st-martin-french-part/

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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: 28 August 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.