Again, it is either Springfield, MA or Springfield, IL. Funny thing though, when ya ask someone who doesn't watch the Simpsons. "Where are the Simpsons from?" They automatically say uhhm Springfield, that is in Illinois. The Springfield in IL does resemble the one on the Simpsons. If you have Google Earth, look at the city in IL, compare it to the map of Springfield, where the Simpsons live, it resembles.
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Again, it is either Springfield, MA or Springfield, IL. Funny thing though, when ya ask someone who doesn't watch the Simpsons. "Where are the Simpsons from?" They automatically say uhhm Springfield, that is in Illinois. The Springfield in IL does resemble the one on the Simpsons. If you have Google Earth, look at the city in IL, compare it to the map of Springfield, where the Simpsons live, it resembles.