Here are some very interesting statistics regarding the fast food industry:
restaurants per resident
Who would have known that Louisville has more McDonald's, Arby's, Dairy Queen and Applebee's per person than any other city in America? Of course we also have the most Papa John's but we probably could have guessed that! It looks like the numbers are fairly old because if you calculate it out they're showing Louisville's population at about 250,000 people. So while not totally accurate it still provides some interesting data.