New Jersey has always been an odd state – it's the most densely populated of the fifty, and yet it lies just outside of the core of both of its metro areas (Philadelphia and New York). North Jersey does have a formidable number of mid-sized cities, but the biggest – Newark - is a poster child for urban neglect, and New Jersey's urban areas play a tepid second fiddle to their much larger counterparts across the Delaware and the Hudson. New Jersey's appeal lies undeniably in its suburbs, which are connected by a network of government-built roads and enabled by anti-density development rules.
Despite New Jersey's predilection for sprawl, the New York Times reports that the state may literally be running out of horizontal space. A Rutgers study claims that around the middle of the 21st century New Jersey will become the first state to develop all its unprotected land development trends remain unchanged.
Thanks to Stephen Smith