I've been looking for zip code based demographic information for Detroit for a while. The Free Press just published an article showing some.

http://www.freep.com/story/opinion/c...ome/100167656/

48226 -- Downtown Detroit -- $141,141
[[Fifth highest in the metro area)

Anyone who thinks that Detroit's comeback is not real ought to take a hard look at that number. We're not finished, by any means, but the rebirth is unquestionably underway.