Every Division 1 College in the US : r/MapPorn
Most Popular Sports in the US by State : r/MapPorn
College Football Conference Realignment Map : r/CFB
Regional Map of the USA : r/MapPorn
US Cultural Zones distinguished by counties : r/MapPorn
Cultural regions of the United States : r/MapPorn
World Map of Sports Popularity Based by Region [4867 x 2164] [OC] : r/ MapPorn
The Football Map of the United States : r/ussoccer
Closest NFL team to each US County : r/MapPorn
Map of America's Favorite College Football Teams using social media data : r /CFB
Each of these regions has 45.5m people. I posted a similar US only one of these a couple of months ago and people seemed to enjoy imagining them as countries, so this
How many NFL teams are in each US state (By which city they are described under) : r/MapPorn
NFL Fan Map: Favorite Team by County