Australia Population By Religion. The latest census results are out and the number of australians who selected “no religion” has risen again to 38.9%, up from 30.1% in 2016. In 1911, it was once as high as 95% of the population.
In 2021, the number of people who answered the religion question was 93.1% of the population, an increase from 90.9% in 2016. Australia is becoming more religiously diverse.