I think he's talking about the Pine Barrens, and those are like only 40 miles wide. Burlington county has 475,000 people. (Though I'm guessing that he means the more southern part of the county).
For me it would be the south-central parts of the Ozarks and Pine forests in the south. The Delta is also quite empty. You can drive 70 miles on straight highways and not see a single gas station or restaurant.
Also I would say Central Jersey is more suburbs of Philadelphia than South Jersey.
We are not all Suburbs. NJ has its own beauty too.
If you have stepped foot in rural NJ you know what I am talking about. If not don't compare it to other rural parts of the country.
Also Pine Barrens are way bigger than you think. Search these things up before you comment.
And I did intend the eastern part of Burlington as it is our biggest county
I apologize If I am coming a bit harsh.
its basically a village from the 15th century
You're in Russia(Just kidding)