2011

2016

2021

Religious Affiliations

Populations 
('000)

Population
(%)

Populations 
('000)

Population 
(%)

Populations 
('000)

Population 
(%)

Christian

13 149.3

61.1

12 201.6

52.1

11 148.8

43.9

Catholic

5 439.3

25.3

5 291.8

22.6

5 075.9

20.0

Anglican

3 679.9

17.1

3 101.2

13.3

2 496.3

9.8

Uniting Church

1 065.8

5.0

870.2

3.7

673.3

2.6

Presbyterian and Reformed

599.5

2.8

526.7

2.3

414.9

1.6

Eastern Orthodox

563.1

2.6

502.8

2.1

535.5

2.1

Other Christian

1 801.8

8.4

1 908.9

7.7

1 952.9

7.7

Other Religions

1 546.3

7.2

1 920 .8

8.2

2 538 .6

10.0

Islam

476.3

2.2

604.2

2.6

813.4

3.2

Buddhism

529.0

2.5

563.7

2.4

615.8

2.4

Hinduism

275.5

1.3

440.3

1.9

684.0

2.7

Sikhism

72.3

0.3

125.9

0.5

210.4

0.8

Judaism

97.3

0.5

91.0

0.4

100.0

0.4

Other

95.9

0.4

95.7

0.4

115.0

0.5

No Religion(a)

4 804.6

22.3

7 040.7

30.1

9 887.0

38.9

Australia(b)

21 507.7

100

23 401.9

100

25 422.8

100

(a) No religion includes secular beliefs (e.g. Atheism) and other spiritual beliefs (e.g. New Age).
(b) As religion was an optional question, the total for Australia will not equal the sum of the items above it.

Source: ABS Census of Population and Housing, 2011 2016 and 2021