NFL Fan Bases: Ranking NFL Fan Bases by Attendance

14. Seattle Seahawks (Average Attendance: 68,992)

The Seattle Seahawks fan base is so well thought of that they have been nicknamed “The 12th Man”, giving the Seahawks a huge home-field advantage.

The Seahawks have said goodbye to plenty of fan-favorites over the last couple of years, as the entire “Legion of Boom” has left the team in one way or another. Still, Seattle’s fans sell out every home game and continue to be some of the best in the NFL.