Where are the best cities for 20-40 year olds in the U.S.? In February 2009, Rebecca Ryan and the NGC team released the long-awaited “Next Cities” lists in a live webcast. Top 20 cities are ranked in three groups according to population: (1) 100,000-200,000; (2) 200,000-500,000; and (3) 500,000+.
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