Religion in the United States is characterized by a diversity of religious beliefs and practices. Various religious faiths have flourished, as well as perished, in the United States. Religions that span the country's multicultural immigrant heritage, as well as those founded within the country, have led the United States to become one of the most religiously diverse countries in the world. A majority of Americans report that religion plays a "very important" role in their lives, a proportion unique among developed nations.
The majority of Americans (73–80%) identify themselves as Christians and about 15–20% have no religious affiliation. According to the American Religious Identification Survey (ARIS) (2008) 76% of the American adult population identified themselves as Christians, with 25% identifying themselves as Catholics, and 51% identifying themselves as Christians spanning some 30 religious groupings. The same survey says that other religions (including, for example, Judaism, Buddhism, Islam, and Hinduism) collectively make up about 4% of the adult population, another 15% of the adult population claim no religious affiliation, and 5.2% said they did not know, or they refused to reply. According to a 2012 survey by the Pew forum, 36 percent of Americans state that they attend services nearly every week or more.
Algeria • Angola • Benin • Botswana
Burkina Faso • Burundi • Cameroon
Cape Verde • Central African Republic
Chad • Comoros • Côte d'Ivoire
DR of Congo • Republic of Congo
Djibouti • Egypt • Equatorial Guinea
Eritrea • Ethiopia • Gabon • Gambia
Ghana • Guinea • Guinea-Bissau • Kenya
Lesotho • Liberia • Libya
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Seychelles • Sierra Leone • Somalia
South Africa • Sudan • Swaziland
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Uganda • Zambia • Zimbabwe
Bangladesh • Bhutan •
Brunei • Burma • Cambodia •
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Indonesia • Japan • Kazakhstan •
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Philippines • Russia • Singapore •
South Korea • Sri Lanka • Taiwan •
Tajikistan • Thailand • Turkmenistan •
Uzbekistan • Vietnam
The Old Order Amish typically have worship services every second Sunday in private homes. A minority of Old Order congregations may have 'Sunday School' on the alternate Sundays. The typical district has 80 adults and 90 children under age 19. Worship begins with a short sermon by one of several preachers or the bishop of the church district, followed by scripture reading and prayer (this prayer is silent in some communities), then another, longer sermon. The service is interspersed with hymns sung without instrumental accompaniment or harmony. This is meant to put the emphasis on what is said, not how it is being said. Many communities use an ancient hymnal known as the Ausbund. The hymns contained in the Ausbund were generally written in what is referred to as Early New High German, a predecessor to modern Standard German.
Singing is usually very slow, and a single hymn may take 15 minutes or longer to finish. In Old Order Amish services, scripture is either read or recited from the German translation of Martin Luther. Worship is followed by lunch and socializing. Church services are conducted in a mixture of Standard German (or 'Bible Dutch') and Pennsylvania German. Amish ministers and deacons are selected by lot out of a group of men nominated by the congregation. They serve for life and have no formal training. Amish bishops are similarly chosen by lot from those selected as preachers. The Old Order Amish do not work on Sunday, except to care for animals. Some congregations may forbid making purchases or exchanging money on Sundays. Also, within some congregations a motor vehicle and driver may not be hired on Sunday, except in an emergency.
As time has passed, the Amish have felt pressures from the modern world. Their traditional rural way of life is becoming more and more different from modern society. Isolated groups of Amish population may have genetic disorders and other problems of closed communities. Amish make decisions on health, education and relationships based on their Biblical beliefs. Amish life has influenced some things in popular culture.