A 2001 survey by the Graduate Center of the City University of New York found that the number of followers of Wicca, one of the many religions that fall beneath the pagan umbrella, increased from 8,000 in 1990 to 134,000 in 2001, making it the fastest-growing religion in America in terms of percentage increase.
Marty Laubach, a sociology professor at Marshall University, says the number of followers of pagan religions is even higher now, citing a 2008 U.S. Religious Landscape Survey that put the estimate at 1.2 million.