Fastest growing religion by country

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In 2006, nations with a Muslim preponderance population growth rate of 1.8 percent per year (world population increase rate of 1.1 percent per year). The world’s Muslim population will increase double as fast as non-Muslims over the next twenty years.

By 2050 the number of Muslims will almost reach the number of Christians around the world.

Today Islam is the biggest religion in Asia. nearly 3/10 people living in the Asia-Pacific region in 2030 will be Muslim.

The share of world population by religion during the last century (World Religion Database)

1. Agnosticism: 1910 – 0.2% ; 2010 – 9.8%
2. Islam: 1910 – 12.6% ; 2010 – 22.5%
3. Hinduism: 1910 – 12.7% ; 2010 – 13.8%
4. Buddhism: 1910 – 7.9% ; 2010 – 8%
5. Christianity: 1910 – 34.8% ; 2010 – 32.8%
6. Chinese folk religion: 1910 – 22.2% ; 2010 – 6.3%

Expected percent change in population size between 2015 and 2060

1. Islam – 70%
2. Christianity – 34%
3. Hinduism – 27%
4. Judaism – 15%
5. Folk Religions – 5%
6. Unaffiliated – 3%