According to this Pew report produced earlier this year, it's no religion at all. Of those surveyed 7.3 percent described being born "unaffiliated." That figure is now 16.1 percent -- an increase of nearly 9 points. By comparison, protestants and Catholics (all denominations) lost 2.6 and 7.5 points respectively, although they still make up three quarters of Americans combined. More interactive religion in America goodies (maps, graphs, charts, tables, etc.) can be found here.
--Mori Dinauer
