Florida has unusual issues. The groundwater isn't very far below the surface and you basically can't have basements there. Some parts of it are swamp and it has a lot of karst that is prone to sink holes.

(Off the top of my head -- so anyone more knowledge, feel free to nitpick that to death. Alternately, anyone desperate to pick a fight and not knowledgeable enough, feel free to google my remark to within an inch of its life.)