Good Without God: Why "Non-Religious" Is the Fastest-Growing Preference in America

May 10, 2011 | Currently more than one billion people around the world define themselves as agnostic, atheist or nonreligious — including 15 percent of Americans. Perhaps more striking, “nonreligious” is not only the fastest growing religious preference in the U.S., but also the only one to increase its percentage in every state over the past generation.