Australia vs Ireland: Share of births outside marriage

Australia
39.87
in 2023
Ireland
38.4
in 2019
Australia rank
25th
Ireland rank
27th

Share of births outside marriage over time

  • Australia
  • Ireland
010203040196019912023

How they compare

Australia currently reports 39.87 against 38.4 in Ireland, a difference of 1.47.

The two have swapped places 3 times across 45 shared years of data; in 1975 it was Australia ahead.

Australia ranks 25th and Ireland ranks 27th of 43 countries.

Across the 5 decades both report, Australia averaged higher in 4 and Ireland in 1.

Head to head by decade

Decade Australia Ireland Difference Ahead
1970s 10.67 4.12 6.55 Australia
1980s 15.84 8.89 6.95 Australia
1990s 25.93 22.44 3.49 Australia
2000s 32.46 32.15 0.3073 Australia
2010s 34.61 36.16 1.55 Ireland

Averages of every year both report within each decade.

Frequently asked questions

Which has higher share of births outside marriage, Australia or Ireland?
Australia, at 39.87 against 38.4 in Ireland as of 2023.
What is the difference in share of births outside marriage between Australia and Ireland?
1.47, with Australia ahead.
How many years of comparable data are there for Australia and Ireland?
45 years are reported by both, from 1975 to 2019.
How do Australia and Ireland rank globally for share of births outside marriage?
Australia ranks 25th and Ireland ranks 27th of 43 countries.
Where does this data come from?
Our World in Data, published as Share of births outside marriage. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Australia vs Ireland: Share of births outside marriage. Statizoid, drawing on Our World in Data. Retrieved 12 November 2026, from https://population.statizoid.com/compare/share-of-births-outside-marriage/australia/ireland/

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About this data

Indicator
Share of births outside marriage
Source
Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
43 places, 2,270 data points, 1960–2024
Last refreshed