So I was inspired by this thread to try to figure out the rough political leanings of the different fan bases (although I agree that NFL fandom would probably skew Republican as a whole. So I'm plugging the votes of these county breakdowns for the different teams from 2014 into excel with the 2016 election results:
I'm working my way from West to East and here's what I have so far:
Raiders - D+38
49ers - D+28
Chargers - D+11
Seahawks - D+10
Cardinals - R+4
Broncos - R+11
Chiefs - R+25
The only problem is that the map is from 2014, so the Rams, Chargers, and Raiders were all still at their old locations. I have a lot more data, though, and some of the results are pretty interesting. For example, third parties did well enough in Broncos territory that trump didn't manage a majority of the vote, despite winning by 11 points. I might give this it's own thread at the end.
Makes me wonder how many NBA fanbases are majority Trump voters. I figure it would be the Thunder and maybe a plurality of Jazz fans.
Let me take a couple of guesses:
Bears D+13
Packers R+3
Lions R+1
Vikings R+1
Steelers R+9