They call it the Bible belt for a reason, it regional. I live in an area where there is a young community that are very religious and older people who are atheists.
I'm on the East Coast, in between two major cities. Age is not strictly a factor here and the mid-west and southern states religion is prevalent because of the
location. Sorry hon, I'm not religious, I haven't raised my kids to be religious and they are. I also study religious history for 'fun'.