If fandom was based on latitude/longitude proximity to the nearest NFL city : r/nfl
24 maps that explain the NFL
N.C.A.A. Fan Map: How the Country Roots for College Football - The New York Times
Where Do NFL Fans Live? Mapping Football Fandom Across the U.S. - Priceonomics
File:US National Football League Teams Location-en.svg - Wikipedia
NFL, 2002 Season: map with helmets. «
Grand Tour MLB, NFL, NBA Stadium Map – GeoJango Maps
Download NFL Map Teams Los Angeles Chargers Wallpaper