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.
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.