In a few decades, when a growing number of people reject Christianity, America’s slogan of “one country under God” would benefit from a rebranding. According to Pew Research, over the past 30 years, a significant percentage of Americans have abandoned Christianity in favour of atheism, agnosticism, or identifying with “nothing in particular.”
90% of American adults identified as Christians in the 1990s, but that number fell to 78% in 2007 and 64% this year. In contrast, since 2007, the proportion of Americans who claim no religious affiliation has climbed from 16% to 29%.
The decline in Christianity normally occurs between the ages of 15 and 29, when 31% of those who were reared as Christians leave the church or change to another religion. After the age of 30, 7% of persons become unaffiliated.
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Although the number of Americans who disaffiliate from Christianity has been rising continuously, this is due more to people quitting religion completely than to them choosing another. Only 6% of Americans identify as adherents of non-Christian religions, such as Judaism, Islam, Hinduism, and Buddhism, whereas 30% of Americans identify as “nones” or religiously unaffiliated.
But according to study, the population won’t drop below 50% until 2070, at least, in part because Christians continue to make pretty significant retention efforts and because of multigenerational, very religious upbringing. Many nonbelievers, even those who have beliefs in a higher power or spiritual force, haven’t entirely abandoned tradition and still engage in religious activities.