Seigal and Schuster met in high school in Cleveland, OH. So that means Metropolis must be based on Cleveland. . .
Just kidding.
I have absolutely never heard of it on the west coast. The somewhere south of NYC on the Atlantic Ocean makes sense.
Looking at it from the creater's view point, most of us in Cleveland don't particularly think of the west coast too often -- probably especially in Segal and Schuster's time. The easy coast, though, is a fairly easy drive away and I think most of us have been to NYC and other east coast metropoli at least once if not more. I would think they would have had a better frame of reference to create a city in the east somewhere . . . or even on a great lake -- Chicago, Toronto, Cleveland.
