city people, suburban people

For years only New York has projected a huge difference between city people and suburban people. If you come into Manhattan from the outer boroughs, Long Island, Westchester, Jersey, etc., you are a bridge-and-tunnel person. In that term, a strict line is drawn between those seeking the city life and those beyond the rivers. Do you think that Chicago has evolved into a similiar city today: a huge suburban population and a very large population at the core of Chicago seeking a strong urban life-style. Similiar incomes, in so many cases, but vastly different life-styles. Different breeds of cat. and, if so, do any other cities offer such dynamics (Boston's and San Francisco's small sizes works against such comprisons for me)>