Facebook data provides the most accurate NFL fandom map ever created (merged)

The only depressing thing about this map is looking at Ohio being dominated by the Pittsburgh bandwagon.
I'm a bit surprised by that too, given that Ohio has two teams. I'm surprised that the Toledo area breaks for the Steelers over both the Browns and the Lions. Maybe not surprising considering that the Steelers have more SB wins and more overall success than the Bengals, Browns and Lions put together.