Why So Many Churches in Small Town, USA?

Why are there so many churches in small town USA?  I mean, seriously....  It doesn’t make too much sense.  I suppose it does when you get down to normal human social interaction, but...I thought religion was supposed to bring humanity above such nonsense....

Its when you talk to people that you realize what exactly is going on.  People not liking a particular preacher because of something he said about somebody.  Or people not knowing why certain people go there because they are too poor or too rich to be in the same company as others.