Earlier quoted context omitted.
The Simpsons is culturally more relevant for an Aussie, and I would assume a Kiwi, than whatever is not Boston.
There must be at least 40 Springfields in the USA. Given Massachusetts's early statehood, I wouldn't be surprised if Springfield, MA was the "first" Springfield in USA, but are you thinking the artist illustrated all the Springfields because of the Simpsons?
(I’m writing this from Springfield right now)