
What Religion is Australia?
Can Australia be described as a Christian nation? This is the sort of question that I have been asked by people visiting from other countries. It sounds like a simple question, but there are different ways to answer it.
The first point to make is that Australia's indigenous people have been in this nation for around 60, 000 years. They have a deep spirituality and sense of connectedness to the land.
A group of more recent arrivals to these ancient shores came from the United Kingdom in chains some 200 years ago. Some Christian clergy were part of the landscape as authority figures, which created a rocky start for Christianity. Since then migrant communities have continued to find their way to Australia, seeking a better life for themselves and their children, making it the second most multicultural nation in the world (after Luxemburg!). Many bring their religion with them.
In recent decades, Australia, like other western nations, has experienced extraordinary and rapid social change in recent decades. This changing social context has been analysed and described by philosophers, social scientists, theologians, artists and others. So what is the situation now? How much has it changed?
One helpful way we can think about the religious character of a nation is to use the framework of 'belonging, believing and behaving'. Here are a few summary indicators based on this framework to demonstrate the extent of change between 1991 and 2011.
- Belonging: do people identify themselves as religious? Do they affiliate themselves with Christian groups?
- Believing: do people express religious beliefs? How many Australians believe in God or a higher power?
- Behaving: do people the proportion of Australians who attend church at least monthly.
Belonging: religious identification
One measure of religious 'belonging' comes from the Australian National Census, run every five years. People are asked 'what is your religion?' This doesn't tell us whether they are practicing Christians, but it does tell us the proportion of the Australian population who affiliate themselves with a Christian denomination or group. Maintaining this as part of one's identity is a form of belonging.
At the turn of the century in 1901, nearly every Australian claimed a Christian affiliation or identification (96%). By the most recent Census in 2011 this figure had declined to six out of ten Australians (61%). In the past two decades from 1991 to 2011, there has been a decline in Christian identification from 74% to 61% (see Figure 1).
Figure: Religiosity of Australians: belonging, beliefs and behavior

Source: Various social surveys of the Australian population
© 2013 NCLS Research
Believing: belief in the existence of God or a higher power
A second way to think about religion in Australia is to find out about people's religious beliefs.
Over time, various sample surveys of the Australian population have asked a question about whether people 'believe in the existence of God or some kind of higher power'. Around seven out of ten Australians do claim to hold this belief. However, it has declined from around 78% in 1993 to 69% in 2009.
Behaving: the changing practice of church attendance
A third way that people express being religious is through their religious practices. These can be either public or private, such as personal prayer, meditation and other devotional practices. The most obvious measure of public religious practice is church attendance and is commonly used by researchers.
A recent survey that asked about church attendance found that 15% of Australians go to church at least once per month. We call this group 'frequent church attenders'. This overall percentage has been declining since the 1950s – which was likely to be the high point in Australian church attending history. Figure 1 shows that this longer term trend of overall decline in church attendance has continued in the two decades since 1991.