We have the largest percentage of foreign-born residents in the world, more women are joining the workforce and we're getting fatter.
We're also living longer and less likely to follow an organised religion, although the number of Muslims in Australia is set to boom over the next decade, according to figures released this week by business information analysts IBISWorld to mark World Population Day.
The figures predict Australia's population will reach more than 25 million by mid-2020, and more than half the working population will have dependants.
Yet by 2020, more than 45 per cent of those dependants will be over 65, compared to just 39 per cent in 2009.
Based on long-term studies and analysis of trends for the next decade, IBISWorld's figures give us a sense of what we're doing and where we're headed.
The fertility rate is rising, but is now contributing just 40 per cent to the population growth, while migration has accounted for the rest.
But the figures suggest this may slow now the government has curbed the country's migration program. Australians come from 150 different ancestries.
More in today's Canberra Times