ok, well about where the simpsons live, they don't live in any state, they never say it, they come close to saying, or showing it on the show, but they never show it, there are several "Springfield"s in the USA and they never say where it is, my favorite when they don't reveal it is when Apu is about to get deported and they are teaching him how to pass his citizenship test and they're about to show Apu where Springfield is and Bart's head steps into the camera and he says "hey, what are you guys doin'" ... ok, i digress...
-JawaJedi