Also, it’s worth noting that Catholics are a plurality in the U.S., too, but it would be inaccurate to call the U.S. a Catholic country. The difference is that there is such a diversity of Protestant churches that the Catholics are merely the largest single group, but Protestants as a whole dominate.

If one were to measure “churchgoing” in the U.S., though, I imagine certain groups might show relatively higher numbers, such as Baptists and Latter-Day Saints.

There’s actually been a substantial amount of talk about religion in the U.S. public sphere lately, mainly because of Mormon presidential candidate Mitt Romney. A lot of people outside the West are quite unfamiliar with the Mormons, and I’ve seen an interesting mix of fear and curiosity.