How many years of comparable data are there for Denmark and Ireland?

55 years are reported by both, from 1968 to 2022.

Where does this data come from?

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

Denmark vs Ireland: Average age of mothers at childbirth by birth order

Denmark

30.34 years

in 2024

Ireland

30.95 years

in 2022

Denmark rank

8th

Ireland rank

6th

Average age of mothers at childbirth by birth order over time

Denmark
Ireland

How they compare

Ireland currently reports 30.95 years against 30.34 years in Denmark, a difference of 0.61 years.

The two have swapped places 4 times across 55 shared years of data; in 1968 it was Ireland ahead.

Denmark ranks 8th and Ireland ranks 6th of 33 countries.

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

Head to head by decade

Decade	Denmark	Ireland	Difference	Ahead
1960s	23.51 years	26.3 years	2.79 years	Ireland
1970s	24.07 years	25.74 years	1.67 years	Ireland
1980s	25.46 years	26.13 years	0.663 years	Ireland
1990s	27.05 years	27.13 years	0.08 years	Ireland
2000s	28.21 years	28.44 years	0.23 years	Ireland
2010s	29.15 years	29.88 years	0.73 years	Ireland
2020s	29.94 years	30.96 years	1.01 years	Ireland

Averages of every year both report within each decade.

Frequently asked questions

Which has higher average age of mothers at childbirth by birth order, Denmark or Ireland?: Ireland, at 30.95 years against 30.34 years in Denmark as of 2022.
What is the difference in average age of mothers at childbirth by birth order between Denmark and Ireland?: 0.61 years, with Ireland ahead.
How many years of comparable data are there for Denmark and Ireland?: 55 years are reported by both, from 1968 to 2022.
How do Denmark and Ireland rank globally for average age of mothers at childbirth by birth order?: Denmark ranks 8th and Ireland ranks 6th of 33 countries.
Where does this data come from?: Human Fertility Database (2025) – processed by Our World in Data, published as Average age of mothers at childbirth by birth order. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Denmark vs Ireland: Average age of mothers at childbirth by birth order. Statizoid, drawing on Human Fertility Database (2025) – processed by Our World in Data. Retrieved 31 August 2026, from https://population.statizoid.com/compare/period-average-age-of-mothers-birth-order/denmark/ireland/

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About this data

Indicator: Average age of mothers at childbirth by birth order
Unit: years
Source: Human Fertility Database (2025) – processed by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 33 places, 1,628 data points, 1933–2024
Last refreshed: 28 August 2026

Average age of mothers when they have their first child in a specific year. It is standardized for the age structure of the female population of reproductive age.