There has been an overall increasing trend in multiple births in the last two decades in Australia. Attributed largely to the increased use of fertility drugs and assisted reproduction technology and the growing number of older mothers.

In 2015, according to the Australian Bureau of Statistics (latest report as of December 2017) there were the following multiple births in Australia:

  • 4,291 sets of twins, representing 1.4% of all births
  • 84 sets of triplets and higher order multiples, representing 0.03% of all births


Twins Research Australia has produced an article with more information on twin pregnancy and birth trends in Australia. This piece looks at twin pregnancies and birth trends overall and by:

  • State
  • Mother’s country of birth
  • Sex
  • Mother’s age

To view the article, please click here.

Twins Research Australia

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Twins Research Australia is a national resource supported by a Centre of Research Excellence Grant from the National Health and Medical Research Council and housed within the University of Melbourne.

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