NFL Fan Bases: Ranking NFL Fan Bases by Attendance

20. Buffalo Bills (Average Attendance: 65,527)

The Bills Mafia is probably the most famous fan base in all of professional sports, as their crazy tailgate antics have taken on a life of their own with the advent of social media.

No folding table is safe when a home game is being played in Buffalo, or even when the Bills Mafia travels with the team on the road. The only question when it comes to Bills’ fans is whether they make it to their seats after a long tailgate.