Islam is the third largest religion in the United States after Christianity and Judaism.[1] According to a 2010 study, it is followed by 0.9% of the population, compared to 70.6% who follow Christianity, 22.8% unaffiliated, 1.9% Judaism, 0.7% Buddhism, and 0.7% Hinduism.[1][2] According to a new estimate in 2016, there are 3.3 million Muslims living in the United States, about 1% of the total U.S. population.[3]

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According to Pew Forum estimate in 2016 there are 3.3 million Muslims, comprising about 1% of the total U.S. population.[3] A Pew Forum report on American religion found that Muslims accounted for 0.9% of American adults in 2014, up from 0.4% in 2007, due largely to immigration. Retention rates were high, at 77%, similar to Hindus (80%) and Jews (75%); most people who leave these religions become unaffiliated, although ex-Muslims were more likely to be Christians than ex-Hindus or ex-Jews were. Conversely, 23% of American Muslims were converts, including 8% from historically black Protestant traditions, 6% from being unaffiliated, 4% from Catholicism, and 3% from mainline or evangelical Protestantism. By race, in 2014, 38% were non-Hispanic white (including Arabs and Iranians, up from 32% in 2007), 28% were Asian (mostly Indians, Pakistanis, and Bangladeshis, up from 20% in 2007), 28% were black (down from 32%), 4% Hispanic (down from 7%), and 3% of mixed or other race (down from 7%). Since 2007, the black proportion had shrunk, while the white and Asian proportions had grown, mainly due to immigration as most black Muslims were native U.S. blacks.[91]

https://en.wikipedia.org/wiki/Islam_..._United_States