As Sean Taylor explains:
The National Football League is one of the most popular sports in America with some incredibly devoted fans. At Facebook we have about 35 million account holders in the United States who have Liked a page for one of the 32 teams in the league, representing one of the most comprehensive samples of sports fanship ever collected. Put another way, more than 1 in 10 Americans have declared their support for an NFL team on Facebook.
So Facebook mapped out these likes by county, as Taylor explained here:
While winning seems to matter, NFL teams have local followings that are probably heavily influenced by family ties and/or where a person grew up, so we were obviously curious to see where the fans for various teams live now. By considering the physical locations of NFL fans, we can construct a map of the top team for each county in the US. It tells an interesting story about the ways that football rivalries and allegiances alternately divide and unite the country, and sometimes even individual states.
But the most burning questions I have are:
What are all of those Steelers and Cowboys fans doing in the northwest?
Why does Alaska love Green Bay?
What’s more difficult: “Where’s Waldo?” or “Where are the Jets?”