The latest census has revealed that Campbellfield in Victoria is the most devout postcode in the nation.

Australians’ overall loss of religion in the 2016 census was much discussed when initial figures were released last week.

However, more detailed data published this week revealed that some parts of the country are still very pious – especially where Christianity and Islam co-exist.

Campbellfield, VIC (postcode 3061) came out on top, with 2353 Christians, 1778 Muslims, 70 Hindus and 63 Buddhists, making 85.4 per cent of those who filled out the census religious.

The New Daily examined all Australian postcodes with at least 100 census respondents, and added together those who said they were Christian, Muslim, Buddhist, Hindu, Jewish and ‘other’.

We did not include the category ‘Secular Beliefs and Other Spiritual Beliefs and No Religious Affiliation’.

Greenacre and Chullora, NSW (postcode 2190) came in equal second with 10,595 Muslims, 10,234 Christians, 597 Buddhists, 222 Hindus, 5 Jews and 144 ‘other’, making it 85.2 per cent religious.

It tied with postcode 2176, which spans the suburbs of Bossley Park, Edensor Park and Wakeley. That area had 32,539 Christians, 6179 Buddhists, 1243 Muslims, 303 Hindus, 5 Jews and 443 ‘other’.

There were several postcodes in Western Australia and Queensland that were extremely religious (4009, 6090, 6463, 4461 and 6068), including some with 100 per cent holiness, but these were discounted because they had fewer than 100 respondents. Some had less than 10.

The ‘other religion’ category is likely to be dominated by Sikhs, Jehovah’s Witnesses, Mormons and Seventh-Day Adventists.

Australia’s most secular postcodes were mostly in Western Australia, and all had very low levels of religions other than Christian.

Nationally, about one third (29.6 per cent) of Australians said in the census they had no religion at all, nearly double the 16 per cent in 2001.

This was a huge shift from a half century ago, when the vast majority (88 per cent in 1966) said they were Christian.

However, Christians still made up 51 per cent of the population last year, followed by Muslims (2.6 per cent) and Buddhists (2.4 per cent).

Since the 1996 census, the share of the population that said it was Hindu has increased by 533 per cent, while Buddhism doubled over that time and Islam rose by 160 per cent.

Well-known demographic expert Bernard Salt has argued that the reduction in religious affiliation in the census may not solely be the result of migration or other demographic change – we might simply be more honest these days.