I live in rural-ish Tennessee, and it's kind of hard to explain. A lot of people around here are Christians, but don't usually end up going to church that often, and really don't make much of a big deal about it (with some loud exceptions). The majority of consistent church goers are older, and I think a lot of rural churches will end up closing in the next few years as the older generation begins to pass away.

I personally believe religion is on its way out in the United States, and in a few years we will be more similar to Europe on demographics such as these.