Section I. Religious Demography
The U.S. government estimates the total population at 3.1 million (midyear 2021). According to the most recent census, conducted in 2011, Sunni Muslims constitute nearly 57 percent of the population, Roman Catholics 10 percent, members of the AOC 7 percent, and members of the Bektashi Order (a form of Shia Sufism) 2 percent. Other groups include Protestant denominations, Baha’is, Jehovah’s Witnesses, The Church of Jesus Christ of Latter-day Saints, and Jews. Nearly 20 percent of respondents declined to answer an optional census question about religious affiliation. According to Boston University’s 2020 World Religion Database, there are approximately 1.71 million Muslims (59 percent of the population), 1.01 million Christians (38 percent), 73,000 atheists or agnostics (2.5 percent), and 16,000 Baha’is. The World Jewish Congress estimates there are 40-50 Jews.