Can't stand how Idaho is represented in maps like this. Really should be split up into north and south to give you a better idea. Anywhere north of McCall Washington State, Idaho, Eastern Washington and Gonzaga are all more popular than Boise State. Incidentally there are probably more graduates of each of those four schools living in Idaho than graduates of Boise State.
Edit: Found one that takes these kind of things into account.
Makes you wonder how much that has to do with their douche of a coach. If they had a coach that people actually liked and/or respected i am 100% sure it wouldn't be like that. All because of Harbaugh the whiners nickname has grown a massive backbone because all he DOES is whine on the sideline.