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In Australia in 2021, the largest religious group was Western (Roman) Catholic (19.6% of all people), while 38.7% of people had no religion and 6.9% did not answer the question on religion.
Australia's religion statistics provide an indicator of cultural identity and ethnicity when observed in conjunction with other key variables. Religion data reveal the major concentrations of religions as well as revealing the proportion of people with no religious affiliation. There are a number of reasons for different religious compositions across areas including the country of birth and ethnic background of the population, the age of the population (belief in religion is generally stronger, the older the population) and changes in values and belief systems.
Australia's religion statistics should be analysed in conjunction with other ethnicity statistics such as Country of Birth data and Language Spoken data to assist in identifying specific cultural and ethnic groups.
Please note: Due to changes in ABS rules around perturbation and additivity of data to protect the confidentiality of individuals, counts of individual religion groups and totals derived from them may differ slightly from those published by the ABS.
Q:
Derived from the Census question:
'What is the person's religion?'
Refers to:
Total population
Religion - Summary | |||||||
---|---|---|---|---|---|---|---|
Australia - Total persons (Usual residence) | 2021 | 2016 | Change | ||||
Religion totals | Number | % | Greater Capital Cities % | Number | % | Greater Capital Cities % | 2016 to 2021 |
Christian total | 11,149,643 | 43.9 | 42.7 | 12,201,613 | 52.1 | 49.7 | -1,051,970 |
Non Christian total | 2,539,543 | 10.0 | 13.4 | 1,922,028 | 8.2 | 11.1 | +617,515 |
Non-classifiable religious belief | 141,571 | 0.6 | 0.5 | 144,780 | 0.6 | 0.6 | -3,209 |
No Religion/secular beliefs | 9,840,976 | 38.7 | 37.3 | 7,001,293 | 29.9 | 29.9 | +2,839,683 |
Not stated | 1,751,053 | 6.9 | 6.1 | 2,132,160 | 9.1 | 8.6 | -381,107 |
Total Population | 25,422,786 | 100.0 | 100.0 | 23,401,874 | 100.0 | 100.0 | +2,020,912 |
Source: Australian Bureau of Statistics, Census of Population and Housing (opens a new window) 2016 and 2021. Compiled and presented by .id (opens a new window)(informed decisions).
(Usual residence data)
Religion - Ranked by size | |||||||
---|---|---|---|---|---|---|---|
Australia - Total persons (Usual residence) | 2021 | 2016 | Change | ||||
Religion | Number | % | Greater Capital Cities % | Number | % | Greater Capital Cities % | 2016 to 2021 |
Western (Roman) Catholic | 4,994,187 | 19.6 | 20.1 | 5,229,667 | 22.3 | 22.6 | -235,480 |
Anglican | 2,496,267 | 9.8 | 8.1 | 3,101,188 | 13.3 | 11.0 | -604,921 |
Islam | 813,395 | 3.2 | 4.5 | 604,244 | 2.6 | 3.6 | +209,151 |
Christian,nfd | 688,443 | 2.7 | 2.8 | 612,365 | 2.6 | 2.7 | +76,078 |
Hinduism | 683,995 | 2.7 | 3.7 | 440,298 | 1.9 | 2.6 | +243,697 |
Uniting Church | 673,267 | 2.6 | 2.0 | 870,187 | 3.7 | 2.8 | -196,920 |
Buddhism | 615,822 | 2.4 | 3.2 | 563,672 | 2.4 | 3.2 | +52,150 |
Presbyterian and Reformed | 414,889 | 1.6 | 1.4 | 526,683 | 2.3 | 1.8 | -111,794 |
Greek Orthodox | 390,961 | 1.5 | 2.1 | 373,594 | 1.6 | 2.2 | +17,367 |
Baptist | 347,335 | 1.4 | 1.4 | 345,145 | 1.5 | 1.5 | +2,190 |
Show all (41 entries)
Source: Australian Bureau of Statistics, Census of Population and Housing (opens a new window) 2016 and 2021. Compiled and presented by .id (opens a new window)(informed decisions).
Excludes religions with fewer than 10 adherents.
Source: Australian Bureau of Statistics, Census of Population and Housing, 2021 (Usual residence data). Compiled and presented in profile.id by .id (informed decisions).
Source: Australian Bureau of Statistics, Census of Population and Housing, 2016 and 2021 (Usual residence data). Compiled and presented in profile.id by .id (informed decisions).
Dominant groups
Analysis of the religious affiliation of the population of Australia in 2021 compared to Greater Capital Cities shows that there was a lower proportion of people who professed a religion and a higher proportion who stated they had no religion.
Overall, 53.8% of the population nominated a religion, and 38.7% said they had no religion, compared with 56.1% and 37.3% respectively for Greater Capital Cities.
The largest single religion in Australia was Western (Roman) Catholic, with 19.6% of the population or 4,994,187 people as adherents.
The major differences between the religious affiliation for the population of Australia and Greater Capital Cities were:
- A larger percentage who nominated Anglican (9.8% compared to 8.1%)
- A smaller percentage who nominated Islam (3.2% compared to 4.5%)
Emerging groups
The largest changes in the religious affiliation of the population in Australia between 2016 and 2021 were for those who nominated:
- Anglican (-604,921 persons)
- Hinduism (+243,697 persons)
- Western (Roman) Catholic (-235,480 persons)
- Islam (+209,151 persons)
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