Religious Population Growth: Islam and Christianity in Numbers
Islam grows at 1.43% annually vs 1.36% for Christianity
Christianity 28.8% and Islam 25.6% of world population
2.9 children per Muslim woman vs 2.2 for other religions
Muslims' median age is 23 years vs 30 for Christians
347 million Muslims added vs lower Christian growth
Christianity spread across 6 continents, Islam concentrated in Asia-Africa
2.76 billion Muslims expected vs 2.92 billion Christians
48 Muslim-majority countries vs 160 Christian-majority
Islam is experiencing the fastest population growth among world religions, with the number of Muslims increasing by 347 million people in one decade (2010-2020), rising from 23.9% to 25.6% of the world's population, while the Christian proportion declined from 30.6% to 28.8% during the same period. Projections indicate the two religions will have equal numbers by 2050, with Islam likely surpassing Christianity by 2075.