With its tightly packed skyscrapers and crammed subway cars, New York City is probably the most stereotypical example of a crowded U.S. metropolis. According to Rent.com, the Big Apple has about 27,547 residents per square mile, making it the most densely populated city in the country. New Jersey’s Jersey City and Newark—both popular places for Manhattan commuters to live—are the third and ninth most densely populated cities, respectively. Arizona is the clear champion of sparsely populated cities. If you don’t see your city on either top 10 list below, you can look for it on the full list of 50 most crowded cities or their 50 least crowded counterparts.