I live in a suburb of Boston, MA. It's not a red state by any means, and I walk around with my Friendly Neighborhood Atheist button I got from the Reason Rally without any problems. Sure, I occasionally get a dirty look, but no one has gotten in my face over the public display of godlessness (PDG).
I understand that many places (most?) do not have such a tolerant attitude towards atheists. Have you ever been threatened because you're one? Were you online when it happened or was it in the "real" world?
The poll is in the upper left column and feel free to place your comments below.