A new survey has found that there are around 80,000 churches in the world, with around one-quarter of them located in the United States.
The survey, by the World Christian Association, surveyed more than 5,000 people around the world on their belief in God and found that the majority of Christians do not attend a church, but that they are still believers.
The study found that 57 per cent of respondents said they were Christians, with nearly half of them saying they attend a Christian church.
However, only 13 per cent said they attend the Church of England, while 19 per cent attend the Catholic Church, and the rest of the respondents are non-religious.
More than half (52 per cent) of the people surveyed said they would not attend church at all if they did not believe in God, while more than a quarter (27 per cent), said they could not say which denomination they believed in.
More people said they do not consider themselves Christian because they do have doubts about whether God exists (18 per cent).
And of those people, less than half would say that God would exist for them if they were not Christians (44 per cent would not say this), while 28 per cent are unsure.
About one in three people surveyed (32 per cent or 2.2 million people) said they did attend a local church, with a similar proportion saying they go to a church in a neighbouring country.
More respondents in the UK and Australia (27 and 16 per cent respectively) also said they attended a church or temple in their home country, while only 14 per cent were not affiliated with a church.
A similar proportion of Australians said they went to church more than once a week, with almost half (47 per cent and 26 per cent, respectively) saying they went twice a week or more.
However some of the results from the survey did suggest that more people are not religious in the U.S. compared to other parts of the world.
More than a third (37 per cent in the US and 24 per cent worldwide) said that they were very religious.
And about three-quarters (75 per cent at least once a month) said the least important thing about their religious faith was the practice of prayer.
Some people in the study also said that religion did not make them happy, while others said it did.
More generally, the survey found that people in other countries tended to be more accepting of the idea of religion as a concept.
About four in five people surveyed in Canada (38 per cent across the three regions) said religion was a “necessary part of life” and a “common” part of people’s lives.
But nearly two-thirds (65 per cent ) of people in India said they felt the same way, and about three in five in Japan said they thought religion was “not important at all.”
The survey also found that those in the West were more accepting than those in other parts.
About three-fourths of people surveyed, or 2,500 people, in the Americas, Asia and Europe said religion is “not something you need to be religious about”, compared to just a third of those in Africa.
About half (51 per cent; 2,000 respondents) in Asia said religion should not be a “major part of their life” while fewer than one in five (19 per cent.) said they had been “extremely religious” at some point in their lives.
More positive responses were found in Europe and the Middle East, where more people said religion had “no place in their everyday lives”.
The survey found the same across different parts of Europe, with those in Scandinavia and Germany more likely than those elsewhere to be religiously affiliated.