Australia vs United States: Share of births outside marriage

Australia
39.87
in 2023
United States
40
in 2023
Australia rank
25th
United States rank
24th

Share of births outside marriage over time

  • Australia
  • United States
10203040196019912023

How they compare

United States currently reports 40 against 39.87 in Australia, a difference of 0.13.

The two have swapped places 2 times across 49 shared years of data; in 1975 it was United States ahead.

Australia ranks 25th and United States ranks 24th of 43 countries.

United States has averaged higher in every one of the 6 decades both report.

Head to head by decade

Decade Australia United States Difference Ahead
1970s 10.67 15.6 4.93 United States
1980s 15.84 22.07 6.23 United States
1990s 25.93 31.4 5.47 United States
2000s 32.46 36.78 4.32 United States
2010s 34.61 40.25 5.64 United States
2020s 38.67 40.08 1.4 United States

Averages of every year both report within each decade.

Frequently asked questions

Which has higher share of births outside marriage, Australia or United States?
United States, at 40 against 39.87 in Australia as of 2023.
What is the difference in share of births outside marriage between Australia and United States?
0.13, with United States ahead.
How many years of comparable data are there for Australia and United States?
49 years are reported by both, from 1975 to 2023.
How do Australia and United States rank globally for share of births outside marriage?
Australia ranks 25th and United States ranks 24th 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 United States: 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/united-states/

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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