- Muslims are the fastest-growing religious group in the world.
- There were 1.8 billion Muslims in the world as of 2015 – roughly 24% of the global population – according to a Pew Research Center estimate.
- Yet many facts about Muslims are not well known in some of these places, and most Americans – who live in a country with a relatively small Muslim population – have said they know little or nothing about Islam.
- Although many countries in the Middle East-North Africa region, where the religion originated in the seventh century, are heavily Muslim, the region is home to only about 20% of the world’s Muslims.
- A majority of the Muslims globally (62%) live in the Asia-Pacific region.
- Indonesia is currently the country with the world’s largest Muslim population.
- The Pew Research Center projects that India will have that distinction by the year 2050 (while remaining a majority-Hindu country), with more than 300 million Muslims.
- Based on an analysis of census statistics and data from a 2017, there are about 3.35 million Muslims of all ages in the U.S., or about 1% of the U.S. population.
- Americans view more warmly the seven other religious groups mentioned in the survey (Jews, Catholics, mainline Protestants, evangelical Christians, Buddhists, Hindus and Mormons).
- Perceptions varied across European nations: Majorities in Hungary, Italy, Poland and Greece say they view Muslims unfavorably, while negative attitudes toward Muslims are much less common in France, Germany, the United Kingdom and elsewhere in Northern and Western Europe.