I have no personal experience there, but I'm not sure that its Iowa. Its not part of the bible belt and they consistently elect Democrats (except Sen. Grassley).
I voted Michigan, with PA and NM as runners up.
M&C is right about New Hampshire not belonging on the list. They are economic conservatives, not social ones.
I've always gotten the impression that Iowa is part of the Bible belt. It has one of the highest church attendance rates, at least.
I didn't know that, it doesn't seem like a very organized-religion type state to the extent that Tennessee or Arkansas are.
My impression of Iowa is partly b/c I know someone from there, and I remember her saying that its not as conservative a place as people think it is. Its not liberal by any stretch of the imagination, just centrist.