Salem County, NJ is more liberal than Ocean County, NJ, I'd think.
What about Cape May County?
Not liberal at all, really.
Really? It's coastal and everything.
Are coastal areas usually liberal? I never heard of that. Anyway, no, Cape May county is not liberal.
Coastal States are more liberal, in a very broad sense. Except for the Carolinas and Georgia and excluding the Gulf Coast. Maybe he meant that coastal counties are more liberal in the same way. I've never been to Cape May, I thought it was a swing county but you're right that it usually votes Republican.
South of NYC, the East Coast is pretty much conservative until you get to Miami with a few moderate blips on the radar. You have to bear in mind Philly, Baltimore, and Washington are farther inland, yet for political purposes are considered "coastal." Parts of even interior Southern NJ and the Delmarva could easily remind you of the rural South if you ever drove through. Yes, I've even seen Confederate flags in South Jersey and there are actually blacks living in rural areas there (rare for the North). IIRC, NJ was one of the last northern states to ban slavery.