This study will be an ongoing one, as this is just preliminary. The below displayed maps show where some major college football teams accumulate their players.
Florida Gators
Miami Hurricanes
Florida State Seminoles
Ohio State Buckeyes
Alabama Crimson Tide
Georgia Bulldogs
These maps show the entire roster makeup, so it includes walk-ons, etc. More work is to be done here, but it is at least kinda neat (to me) to see from where teams obtain their players.