A cikin ƙidayar 2016, 54.6% na Australiya an ƙidaya su a matsayin Krista, ciki har da 22.6% a matsayin Roman Katolika da 13.3% a matsayin Anglican; 30.1% na yawan jama'a sun ba da rahoton cewa "babu addini"; 7.3% sun nuna cewa ba su da addinin Kirista, mafi girma daga cikin waɗannan shine Islama (2.6%), sannan Buddha (2.5%), Hindu (1.9%), Sikhism (0.6%) da Yahudanci (0.4%). Sauran 9.6% na yawan jama'a ba su ba da amsa mai kyau ba. Wadanda suka ba da rahoton cewa babu addini sun karu daga 19% a 2006 zuwa 30% a 2016.
Sashe na 116 na kundin tsarin mulkin Australiya ya hana gwamnatin tarayya yin duk wata doka don kafa kowane addini