There's a spirited discussion on Ta-Nehisi Coates's Atlantic blog about Aaron Renn's essay The White City, and Renn himself stops by to join in the conversation. In his essay, Renn noted that many cities such as Portland and Seattle that are praised for their progressiveness have something in common: few African Americans. One objection Coates raised to Renn's argument was that Renn excluded large cities such as New York that do have significant African American populations and of course also attract young progressives. In response, I noted that many of the soi dissant young progressives in New York end up congregating in trendy neighborhoods that are far less diverse than the city as a whole.
I made a similar comment in the comment thread following Renn's essay and linked to a post of mine from earlier this year that included the photo above, from a New York Times article on the burgeoning culinary entrepreneurship movement in Brooklyn. I noted that the photo gave a sense of the sort of diversity one might find in some of the trendier neighborhoods in New York City.