It's all about terrain. To my north is a big alligator infest swamp, the Okeefenokee. I figure that the little dinosaurs are good for a few Zombies.

To my west and south sits Osceola National forest with many sections impassable or difficult to pass through. In addition I'm well away from main routes of travel. And on top of that I'm surrounded by plenty of Rednecks. They'll thin the ranks before a zombie ever reaches me.

Heck, I may never need to pull the trigger. But if I do I've got ammo a plenty.