Statistics New Zealand gathers information on religious affiliation in the five-yearly census. Completing a census form is compulsory by law for every person in New Zealand on census night[1] but respondents are able to object to answering the question of religious affiliation,[2] and around 6% do object.[3] The trend shows an increasing proportion of residents in New Zealand declaring no religious affiliation. In the 1991 census, 20.2% were in this category.[4] The proportion more than doubled in two decades, reaching 41.9% in the 2013 census, and increased again to 48.2% in the 2018 census, when for the first time a plurality of New Zealanders claimed "no religion". This became a 51.6 % majority in the 2023 census.[5]
There is significant debate among sociologists about the interpretation of this trend in census data.[6] The increase in those indicating 'no religion' is often cited in support of the secularisation thesis. An alternative theory is that the data indicates a decline in institutional religious affiliation rather than simply a decrease in spiritual belief.[7] A 1985 survey showed that around one-quarter of those answering 'no religion' may believe in a god and that, conversely, between 7 percent and 36 percent of Christians (depending on their denomination) did not believe in the existence of deities.[8]
The International Social Survey Programme was conducted in New Zealand by Massey University in 2008. It received mail-responses from around one thousand New Zealanders above the age of 18, surveying issues of religious belief and practice. The results of this survey indicated that 72% of the population believed in a god or a higher power, 15% were agnostic, and 13% were atheist (with a 3% margin of error).[9]
According to a report by the American Physical Society, religion may die out in New Zealand and eight other Western world countries.[10][11][12]
As of the 2018 census, those who did not affiliate with a religion outnumbered those with a religion for the first time.[5]
A campaign to create advertisements similar to the Atheist Bus Campaign in the United Kingdom began a fund-raising drive on 10 December 2009,[13] and reached its initial target of $10,000 in donations within 48 hours, making it one of the most successful atheist campaigns of all time.[14]
Māori and other ethnic groups
Te Ara: The Encyclopedia of New Zealand notes, in 2013 "47% of people who identified themselves as Europeans or New Zealanders said they had no religion – as did 46% of Māori and 30% of Asians. Only 18% of Pacific peoples, and 17% of people in the Middle Eastern, Latin American and African ethnic groups, said they had no religion."[15]
^Ward, Kevin (2004). "'No Longer Believing' – or – 'Believing without Belonging'". In Stenhouse, John (ed.). The Future of Christianity: Historical, Sociological, Political and Theological Perspectives from New Zealand. Adelaide: AFT Press. pp. 64–66.
^"Who is Secular". Ministry for Culture and Heritage. Retrieved 2010-06-09.