Nov 15, 2012 8:52 AM GMT
In the U.S., the rise of irreligion and decline of Christendom looks something like this.
Gallup 200978% of Americans identify with some form of Christian religion, a proportion that has been declining in recent decades. The major reason for this decline has been an increase in the percentage of Americans claiming no religious identity, now at 13% of all adults.
Pew Forum 2012The number of Americans who do not identify with any religion continues to grow at a rapid pace. One-fifth of the U.S. public – and a third of adults under 30 – are religiously unaffiliated today, the highest percentages ever in Pew Research Center polling.
In the last five years alone, the unaffiliated have increased from just over 15% to just under 20% of all U.S. adults. Their ranks now include more than 13 million self-described atheists and agnostics (nearly 6% of the U.S. public), as well as nearly 33 million people who say they have no particular religious affiliation (14%).