Islam is the third largest religion in the United States (1%), behind Christianity and Judaism, equaling Buddhism and Hinduism percentage wise. A 2017 study estimated that 3.45 million Muslims were living in the United States, about 1.1 percent of the total U.S. population. In 2017, 20 states which were mostly in the South and Midwest reported Islam being the largest non-Christian religion. In 2020, the U.S. Religion Census found there to be 4.45 million Muslims in the country, making up 1.3% of the population. While an estimated 10 to 20 percent of the slaves brought to colonial America from Africa arrived as Muslims, Islam was suppressed on plantations. Nearly all enslaved Muslims and their descendants converted to Christianity during the 18th and 19th centuries. Prior to the late 19th century, the vast majority of documented non-enslaved Muslims in North America were merchants, travelers and sailors. From the 1880s to 1914, several thousand Muslims immigrated to the United States from the former territories of the Ottoman Empire and British India. The Muslim population of the U.S. increased dramatically in the second half of the 20th century due to the passage of the Immigration and Nationality Act of 1965, which abolished previous immigration quotas. About 72 percent of American Muslims are immigrants or "second generation". In 2005, more people from Muslim-majority countries became legal permanent United States residents—nearly 96,000—than there had been in any other year in the previous two decades. In 2009, more than 115,000 Muslims became legal residents of the United States. American Muslims come from various backgrounds and, according to a 2009 Gallup poll, are one of the most racially diverse religious groups in the United States. According to a 2017 study done by the Institute for Social Policy, “American Muslims are the only faith community surveyed with no majority race, with 26 percent white, 18 percent Asian, 18 percent Arab, 9 percent black, 7 percent mixed race, and 5 percent Hispanic”.
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