In 2008, the American Religious Identification Survey (ARIS) reported:
|“||The 1990s was the decade when the “secular boom” occurred – each year 1.3 million more adult Americans joined the ranks of the Nones. Since 2001 the annual increase has halved to 660,000 a year...||”|
In 2012, Baylor University indicated that a significant amount of American nondenominational church members are checking "unaffiliated" or "no religion" on surveys. Nondenominational Christians, who tend to be conservative and creationists, are the fastest growing segment of the religious population.