Katana VentraIP

Total population

799,000+[2][3]

790,000+[4]

38,000–300,000[2][3][5]

273,000+[2][3]

22,000-260,000[2][6]

171,000+[2][3]

153,000+[2][3]

117,000+[2][3]

100,000+[7]

70,000–80,000[8][9]

77,000+[2][3]

68,000+[2][3]

60,000[10]–85,000[11]

58,000+[2][3]

57,000+[2][3]

54,000+[2][3]

45,000+[2][3]

41,000+[2][3]

39,000+[2][3]

35,000+[2][3]

35,000+[2][3]

33,000+[2][3]

Religion in the United States has a high adherence level compared to other developed countries and a diversity in beliefs. The First Amendment to the country's Constitution prevents the Federal government from making any "law respecting an establishment of religion, or prohibiting the free exercise thereof". The U.S. Supreme Court has interpreted this as preventing the government from having any authority in religion. A majority of Americans report that religion plays a "very important" role in their lives, a proportion unusual among developed countries. However, similar to the other nations of the Americas.[158] Many faiths have flourished in the United States, including both later imports spanning the country's multicultural immigrant heritage, as well as those founded within the country; these have led the United States to become the most religiously diverse country in the world.[159]


The United States has the world's largest Christian population.[160] The majority of Americans (76%) are Christians, mostly within Protestant and Catholic denominations; these adherents constitute 48% and 23% of the population, respectively.[161] Other religions include Buddhism, Hinduism, Islam, and Judaism, which collectively make up about 4% to 5% of the adult population.[162][163][164] Another 15% of the adult population identifies as having no religious belief or no religious affiliation.[162] According to the American Religious Identification Survey, religious belief varies considerably across the country: 59% of Americans living in Western states (the "Unchurched Belt") report a belief in God, yet in the South (the "Bible Belt") the figure is as high as 86%.[162][165]


Several of the original Thirteen Colonies were established by settlers who wished to practice their religion without discrimination: the Massachusetts Bay Colony was established by English Puritans, Pennsylvania by Irish and English Quakers, Maryland by English and Irish Catholics, and Virginia by English Anglicans. Although some individual states retained established religious confessions well into the 19th century, the United States was the first nation to have no official state-endorsed religion.[166] Modeling the provisions concerning religion within the Virginia Statute for Religious Freedom, the framers of the Constitution rejected any religious test for office. The First Amendment specifically denied the federal government any power to enact any law respecting either an establishment of religion or prohibiting its free exercise, thus protecting any religious organization, institution, or denomination from government interference. European Rationalist and Protestant ideals mainly influenced the decision. Still, it was also a consequence of the pragmatic concerns of minority religious groups and small states that did not want to be under the power or influence of a national religion that did not represent them.[167]

American studies

Ancestry of the people of the United States

Birthright citizenship in the United States

Demonyms for the United States

Deportation of Americans from the United States

Hyphenated American

(2015 PBS film)

Making North America

Stereotypes of Americans