" So do you live in a super ZIP? Check out the Washington Post interactive map and see. If the median income is more than $120,000 a year, and 68 percent of the adults are college graduates, you may be in a super ZIP.
And you also may be living in an isolated bubble world of elites."
Link to the map: http://www.washingtonpost.com/sf/local/2013/11/09/washington
Knight Group Real Estate
@Home Realty Network