What It Takes to Be Rich Depends On Where You Live
US News & World Report revealed what it takes to be “rich” in 40 of the largest metro areas in the United States. The magazine calculated the average incomes of the top 5 percent in each city and estimated what would constitute a "rich" income for a couple with no kids, and for a family of four, in each scenario:
http://www.usnews.com/articles/business/your-money/2008/10/09/what-it-takes-to-be-rich--where-you-live.html