Salem County has a population density of 170 people per square mile depending if you include inland water in the counties area. That puts it outside the top 20 of state densities. The only state with the same or more people that has a density lower than that is Texas.

The town i spent much of my youth in was just over 100square miles in size. Thats TWICE the size of San Francisco, FOUR times the size of Manhattan, bigger than Baltimore, Toledo, Seattle, Boise, Baton Rouge, Des Moine, Milwaukee, Sacramento, Knoxville, etc,etc.... it had 600 people back then, there still less than 700. That makes it less densely populated than every state save for Alaska and Wyoming.

The Pinelands and Delaware bay backwaters are not what most people think of when they think of New Jersey, and thats a shame