This is a controversial topic that I'll make no apologies for. If you're curious about where the most heavily-armed county is in America, you don't need to travel far. It's right across the border from Illinois.
From the beginning, let me state this is not a commentary about gun ownership or gun rights. It's just a ranking I find interesting about the number of gun stores and sales in both Missouri and Illinois. Spoiler alert: there are way more in Missouri and it's not even close.