Religious belief has become a popular topic in the United States and across the globe.
The number of Americans identifying as Muslim rose from 7.9% in 2011 to 13.4% in 2014, according to the Pew Research Center.
Religion in the U.S. is the third-largest source of national religious observance behind the Christian religion and the Jewish religion, according the Pew Forum on Religion & Public Life.
The next largest source is the Muslim-majority countries of Indonesia, Pakistan, Malaysia and the Philippines.
The study found that among Muslims, the largest denomination is the Islamic Republic of Iran with 1.4 million adherents and the largest country in Asia, Pakistan.
The largest Christian denomination is Anglicanism with 447,000 adherents.
The smallest is Jehovah’s Witnesses with 140,000.
A third of all Americans describe themselves as nonreligious, but that number is declining.
For the first time, Pew Research reported that the share of nonreligious Americans fell in 2016, from 30.4 to 27.9%.
While the share is still a higher than it was in 2011, Pew found that the number of atheists and agnostics had grown from 3.7% of the U