Chicago and Philadelphia are two of the ten most populous US cities. The other eight on that list have increased their population in the same period: http://en

Chicago and Philadelphia are two of the ten most populous US cities. The other eight on that list have increased their population in the same period: http://en.wikipedia.org/wiki/List_of_United_States_cities_by_population http://en.wikipedia.org/wiki/List_of_United_States_cities_by... (See the Demographics section of each city's article.)