I guess that’s the separation lineNo one in Woodbridge considers it North Jersey. Rahway on on the other hand feels more like Linden, Elizabeth, Roselle Park, etc so yeah like North Jersey. All of Middlesex county is Central Jersey, period.
Union/Middlesex
In Somerset County, northern Somerset still feels like Northern NJ, Bernardsville, Basking Ridge.
But Bridgewater, Franklin, Raritan , Bound Brook feel like Central Jersey.
in Somerset County, Basically towns south of 78 are Central Jersey.