Upstate PA

I always thought of Pennsylvania as being more geographically balanced than the other states I've lived in. Wereas New York and Massachusetts are dominated by their major city with the rest of the state acting as a sort of hinterland, it seemed like Pennsylvania had important cities arranged around the perimeter -- Philly, Pittsburgh, Erie, Scranton-Wilkes-Barre, and the Lehigh Valley. But it appears that from a Philadelphian perspective the rest of PA is in fact "upstate."

A Google search shows about a third as many results for "upstate Pennsylvania" as for "upstate New York" -- quite a bit more than I would have expected after living in both places.