Okay, so I have looked at a lot of maps of Panem. For example District 12 is several states. And I live in the District 12 area so the way Katniss describes District 12 it sounds to me that it is only like two towns, or a state maximum. Maybe, there is just a lot of open, empty space in District 12 and other districts, I don't know. Give me your feedback on this!