High Quality Content by WIKIPEDIA articles! In the 21st century, religion in Australia remains dominated demographically by Christianity, with 64% of the population claiming at least nominal adherence to a Christian faith as of 2007, although less than a quarter of those attend church weekly. Nearly one third (30%), do not identify with any religion, and the remaining population is a diverse group that includes fast-growing Islamic and Buddhist communities. A major new contribution to the subject is The Encyclopedia of Religion in Australia edited by James Jupp.