The data on this map appears to be measured by Facebook "likes" for college teams, so not exactly scientific. But I found it very interesting.
Double click on the area you are interested in to zoom in on that area. When you zoom in far enough you can place the mouse pointer over various counties to show fan percentages in that county.
http://www.nytimes.com/interactive/2014/10/03/upshot/ncaa-football-map.html
Double click on the area you are interested in to zoom in on that area. When you zoom in far enough you can place the mouse pointer over various counties to show fan percentages in that county.
http://www.nytimes.com/interactive/2014/10/03/upshot/ncaa-football-map.html