Share of births outside marriage in Australia

Australia: Share of births outside marriage was 36.54 in 2020. ▲ Rising

Latest (2020)
36.54
Change on year
up 2.7%
World rank
26th
of 42 countries
All-time high
36.54
in 2020
All-time low
10.1
in 1976
Years of data
46
1975–2020

Share of births outside marriage in Australia, 1975–2020

10203040197519972020

Source: Our World in Data.

Analysis

Australia recorded 36.54 for share of births outside marriage in 2020. That is the highest value across all 46 years on record.

Compared with earlier readings it is up 2.7% on the previous year and up 6.1% over ten years.

Over the whole period, share of births outside marriage in Australia peaked at 36.54 in 2020 and was at its lowest, 10.1, in 1976.

That places Australia 26th out of 42 countries with data for 2020, putting it in the middle of the range.

The long-run direction has been consistently rising across the 46 years of available data.

Share of births outside marriage in Australia, year by year

Annual values for Share of births outside marriage in Australia, 1975 to 2020.
Year Value Change
1975 10.2
1976 10.1 -1.0%
1977 10.3 +2.0%
1978 11 +6.8%
1979 11.7 +6.4%
1980 12.4 +6.0%
1981 13.2 +6.5%
1982 13.7 +3.8%
1983 14.7 +7.3%
1984 14.8 +0.7%
1985 15.5 +4.7%
1986 16.8 +8.4%
1987 18 +7.1%
1988 19 +5.6%
1989 20.2 +6.3%
1990 21.9 +8.4%
1991 23 +5.0%
1992 24 +4.3%
1993 24.9 +3.7%
1994 25.6 +2.8%
1995 26.6 +3.9%
1996 27.4 +3.0%
1997 28.1 +2.6%
1998 28.7 +2.1%
1999 29.2 +1.7%
2000 29.2 +0.0%
2001 30.73 +5.2%
2002 31.25 +1.7%
2003 31.58 +1.0%
2004 32.16 +1.8%
2005 32.62 +1.4%
2006 33.12 +1.5%
2007 33.94 +2.5%
2008 34.87 +2.7%
2009 35.06 +0.6%
2010 34.45 -1.7%
2011 34.18 -0.8%
2012 34.51 +1.0%
2013 34.41 -0.3%
2014 34.37 -0.1%
2015 34.47 +0.3%
2016 33.95 -1.5%
2017 34.83 +2.6%
2018 35.32 +1.4%
2019 35.57 +0.7%
2020 36.54 +2.7%

Averages by decade

DecadeAverage LowestHighest Years
1970s 10.66 10.1 11.7 5
1980s 15.83 12.4 20.2 10
1990s 25.94 21.9 29.2 10
2000s 32.45 29.2 35.06 10
2010s 34.61 33.95 35.57 10
2020s 36.54 36.54 36.54 1

Countries ranked near Australia

  1. 23 United States 40.5 compare
  2. 24 Latvia 39.5 compare
  3. 25 Ireland 38.4 compare
  4. 27 Italy 33.8 compare
  5. 28 Germany 33.1 compare
  6. 29 Canada 32.65 compare

See the full ranking of 42 places →

More population data for Australia

All data for Australia →

Frequently asked questions

What is share of births outside marriage in Australia?
Share of births outside marriage in Australia was 36.54 in 2020, according to Our World in Data.
What is the highest share of births outside marriage recorded in Australia?
The highest recorded value was 36.54 in 2020.
What is the lowest share of births outside marriage recorded in Australia?
The lowest recorded value was 10.1 in 1976.
How does Australia rank for share of births outside marriage?
Australia ranks 26th out of 42 countries with data for 2020.
Is share of births outside marriage rising or falling in Australia?
Over the last ten years it is up 6.1%. The long-run trend across the full record is rising.
Where does this Australia data come from?
The figures come from Our World in Data, published as part of Share of births outside marriage. Statizoid updates them automatically from the source API.

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Share of births outside marriage in Australia. Statizoid, drawing on Our World in Data. Retrieved 23 August 2026, from https://population.statizoid.com/stat/share-of-births-outside-marriage/australia/

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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
42 places, 2,139 data points, 1960–2021
Last refreshed