"They misinterpreted something I've heard him say for at least 10 or 20 year. He was inspired by growing up in Portland, but it's really an every town. It's really funny. Matt grew up in Oregon and parts of The Simpsons were definitely inspired by his childhood. But there is no specific state that Springfield is in, and we will never reveal that secret." The Simpsons executive producer Al Jean insists remarks show creator Matt Groening made about the fictional Springfield's location have been blown out of proportion.