Maps Mania: The Map of Football Fandom
High School Football America Top 100 National Rankings
Ranking NFL teams' popularity across the US – NBC Sports Chicago
Twitter map shows the most popular NFL teams in each county of the
Up Close on Baseball's Borders - The New York Times
40 maps and charts that explain sports in America - Vox
Which NFL team does my county support most?
Favorite NFL team by US county [1127x703] : r/MapPorn
Maptitude Map: Closest NFL Stadium
Where Do NFL Fans Live? Mapping Football Fandom Across the U.S.