According to scholar Philip Jenkins Christianity is growing rapidly in China and some other Asian countries and sub-Saharan Africa.
Italy and Spain. Adherence to established forms of church-related worship is in rapid decline in Italy and Spain, and Church authority on social, moral and ethical issues has been reduced. Daily church attendance has declined but Catholicism still remains the predominant religion in Spain and Italy.
America's Christian majority is shrinking, and could dip below 50% by 2070 The U.S.'s Christian majority has been shrinking for decades. A Pew Research Center study shows that as of 2020, about 64% of Americans identify as Christian. Fifty years ago, that number was 90%.
According to scholar Ladan Boroumand "Iran today is witnessing the highest rate of Christianization in the world", and according to scholar Shay Khatiri of Johns Hopkins University “Islam is the fastest shrinking religion in there [Iran], while Christianity is growing the fastest”, and in 2018 "up to half a million ...
Accurate data on Chinese Christians is difficult to access. There are estimates that say Christianity is the fastest growing religion in China. There were some four million before 1949 (three million Catholics and one million Protestants).
Hinduism is Australia's fastest growing religion. The diversity of modern Australia connects us to every part of the world, including South Asia.
However, due to this small initial population base, immigration from Muslim majority countries has made Islam one of the fastest growing religions in the country in terms of percentage increase, with its followers growing by 110%, from 110,000 in 2010 to 230,000 at the end of 2019, out of the total population of Japan ...
Christianity has been estimated to be growing rapidly in Latin America, Africa, and Asia. In Africa, for instance, in 1900, there were only 8.7 million adherents of Christianity; now there are 390 million, and it is expected that by 2025 there will be 600 million Christians in Africa.
Although Christians will continue to be the largest religious group in the region, Europe's Christian population is expected to drop by about 100 million people, falling from 553 million in 2010 to 454 million in 2050.
96.47% are Muslims, followed by 2.14% Hindus, 1.27% Christians, 0.09% Ahmadi Muslims and 0.02% others. These are some maps of religious minority groups. The 2017 census showed an increasing share in Hinduism, mainly caused by a higher birth rate among the impoverished Hindus of Sindh province.
There are various and interrelated sociological reasons for the decline in mainstream Christianity in Australia, including improvements in education and prosperity, along with internal institutional issues, such as the child abuse scandal, the role of women and issues of sexual ethics.
For example, some may find religion's traditional hierarchies and rules to be too antiquated, or maybe they weren't raised in a religious household to begin with. For others, it could've been a church scandal or traumatic event that sparked a crisis of faith.
Christianity is growing in Punjab, mirroring what states like Tamil Nadu experienced in the 1980s and 1990s. Small churches are springing up on the rooftops of many villages. Amritsar/Gurdaspur: Atop a roof in an obscure gully in Fatehgarh Churian, a Pentecostal church is in full swing.
Modern growth. Islam is the fastest-growing religion in the world. In 1990, 1.1 billion people were Muslims, while in 2010, 1.6 billion people were Muslims.
India's religious composition largely stable since Partition
Between 1951 and 2011, Muslims grew by 4.4 percentage points to 14.2% of the population, while Hindus declined by 4.3 points to 79.8%. Christians have made up between 2% and 3% of India's population in every census since 1951.
“Baby boomers lost their religion in the 1960s and raised their millennial children to be non-religious. That's why the number ticking 'Christian' on the census has dropped as older people die out and younger people select the category of 'non religion'.”
Christianity is the largest religion in Australia, with a total of 43.9% of the nation-wide population identifying with a Christian denomination in the 2021 census. The first presence of Christianity in Australia coincided with the foundation of the first British colony at New South Wales in 1788.
Over the past four decades, Christianity has grown faster in China than anywhere else in the world. Daryl Ireland, a Boston University School of Theology research assistant professor of mission, estimates that the Christian community there has grown from 1 million to 100 million.
In the 2021 national census, 43.9% of Australians identified with Christianity and 38.9% declared "no religion".
77% of new converts to Islam are from Christianity, whereas 19% were from non-religion. Conversely, 55% of Muslims who left Islam became non-religious, and 22% converted to Christianity.
Not only is religion growing overall, but Christianity specifically is growing. With a 1.17% growth rate, almost 2.56 billion people will identify as a Christian by the middle of 2022. By 2050, that number is expected to top 3.33 billion.
More than a third of Muslims are concentrated in Africa and the Middle East, regions that are projected to have the biggest population increases. But even within these high-growth regions – as well as others – Muslims are projected to grow faster than members of other groups.
The recent waves of immigration, especially during and after the 2000s, have led to a fast increasing number of Muslims. Nowadays, Islam is the second largest religion, but far behind Roman Catholicism and irreligion.
The Total Fertility Rates for the two fastest-growing religious groups in sub-Saharan Africa – Muslims and adherents of folk religions – are higher than the rates for Christians and the unaffiliated.
India. Islam is the fastest-growing religion in India. Growth rate of Muslims has been consistently higher than the growth rate of Hindus, ever since the census data of independent India has been available. For example, during the 1991–2001 decade, Muslim growth rate was 29.5% (vs 19.9% for Hindus).