Oh, yeah, I saw this.
There is no such thing as "Central Jersey."
He's from Morris County, which is just plain old North Jersey even for those folks who believe in a Central Jersey.
Actually, muon's point about areas south of the Raritan (the traditional dividing line) which have been swallowed up by the NYC orbit– Princeton, Trenton, the Shore– is a pretty good explanation. Central Jersey is largely that which used to be South, but can't be considered as such any longer. There are outliers– Trenton itself is arguably more connected to Philly still, and gets to be called "Central"; and northern Middlesex has been annexed from the North. But it's a pretty good heuristic.
