I have no idea. New Jersey's population is 99% urban, does that mean they all chose to live in an urban setting or that the State is so crammed full of people

I have no idea. New Jersey's population is 99% urban, does that mean they all chose to live in an urban setting or that the State is so crammed full of people that there's no place to live in isolation? Looking at a map of New Jersey, it looks like if you managed to setup camp in the middle of a state park you might manage to be 5 miles from the nearest town.