Demographics @ Agnostic.com :
People here from almost everywhere. All around the world!
Nothing official or earth shattering here, just my observation:
Sure are lots of folks from the Bible Belt. Midwest seems a little under represented. Texas of course is HUGE! Lots and lots of people from Texas on here. I am genuinely surprised.
Not really surprising, if you think about it. I'm in Tennessee now, but lived out in Dallas area for about 9 years. Given the close mindedness of the general population in these areas, online is essentially the only respite non-theist have to go to talk to others. If you're in an area that has a large non-religious population, you can more easily find local friends to hang out and engage with.