Originally Posted by Brittingham.Sam
While you are right about the cardinals fan base being very large in area and population you have under evaluated the size of your fan base. One cannot forget that louisville only an hour and a half from cinci which basically makes them twin cities and and if you count louisville the cincy louisville metro area is around 4 million. You also split indianapolis with the cubs and columbus with the indians. The only other city of size that are cards fans is memphis. Because of the rockies the cards no longer control the mountain and west and because of the braves moving to atlants they lost much of the south too.
If you start adding cities over an hour drive away, you would drive up St. Louis' number as well. Not so many big cities like Louisville, but plenty of small towns that add millions overall.
I will admit that St. Louis is more of a baseball town than Cincinnati, always has been. But it's always been bigger as well.