How many years of comparable data are there for Czechia and Iceland?

32 years are reported by both, from 1990 to 2021.

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.

Czechia vs Iceland: Average age of mothers at childbirth by birth order

Czechia

28.81 years

in 2021

Iceland

28.77 years

in 2023

Czechia rank

21st

Iceland rank

22nd

Average age of mothers at childbirth by birth order over time

Czechia
Iceland

How they compare

Czechia currently reports 28.81 years against 28.77 years in Iceland, a difference of 0.04 years.

The two have swapped places 3 times across 32 shared years of data; in 1990 it was Iceland ahead.

Czechia ranks 21st and Iceland ranks 22nd of 33 countries.

Across the 4 decades both report, Czechia averaged higher in 3 and Iceland in 1.

Head to head by decade

Decade	Czechia	Iceland	Difference	Ahead
1990s	23.29 years	24.77 years	1.48 years	Iceland
2000s	26.37 years	26.2 years	0.17 years	Czechia
2010s	28.12 years	27.58 years	0.54 years	Czechia
2020s	28.69 years	28.58 years	0.11 years	Czechia

Averages of every year both report within each decade.

Frequently asked questions

Which has higher average age of mothers at childbirth by birth order, Czechia or Iceland?: Czechia, at 28.81 years against 28.77 years in Iceland as of 2021.
What is the difference in average age of mothers at childbirth by birth order between Czechia and Iceland?: 0.04 years, with Czechia ahead.
How many years of comparable data are there for Czechia and Iceland?: 32 years are reported by both, from 1990 to 2021.
How do Czechia and Iceland rank globally for average age of mothers at childbirth by birth order?: Czechia ranks 21st and Iceland ranks 22nd 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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Czechia vs Iceland: Average age of mothers at childbirth by birth order. Statizoid, drawing on Human Fertility Database (2025) – processed by Our World in Data. Retrieved 02 September 2026, from https://population.statizoid.com/compare/period-average-age-of-mothers-birth-order/czechia/iceland/

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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.