Christianity in the U.S. - statistics & facts

The most popular form of Christianity is Protestantism. Although the share of those who identify as Protestant was once 67 percent in 1948, 37 percent of Americans expressed the faith as their religious preference in 2016. However, Catholics boast the largest number of Christian adherents among the denominations. This is because of the diversity of Protestant faiths present within the United States.

A look at religious affiliation in the United States by age category shows that interest in Christianity has waned. While the share of the population affiliated to non-Christian religions is slightly more prominent among young people, the vast difference of those aged 18 to 29 from their older counterparts is the high share of those who are unaffiliated. 32 percent of those aged 18 to 29 in 2012 identified as non-religious.

In the land of opportunity and immigration the economic result of settlers is often mixed. The income levels of religious groups in the United States by faith tradition suggest that Orthodox Christians have fared best. Mostly belonging to families of immigrants from Greece, Russia and Eastern Europe to establish a life in America, 29 percent of Orthodox Christians earned more than 100,000 U.S. dollars per year in 2014. The faith tradition also boosted the lowest percentage of its adherents earning less than 30,000 U.S. dollars per year.

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