It remains the case that although church attendance, and religious affiliation, has been declining in the U.S. for a while now, the U.S. remains one of the most religious nations among western democracies. This chart is an interesting measure, showing that even Ben & Jerry’s Communist Vermont has higher weekly church attendance than most leading European nations. (By the way, one possible interpretation of this data is that any state that scores above 25 percent weekly church attendance votes Republican.)