A Stanford University study has researchers shocked at how fast the middle class is disappearing in the United States: “We already kind of knew that segregation by income had been going up from 1970 to 2000, though I was struck by the magnitude of that increase. One of the striking findings in the report is that in 90% of metropolitan areas, income segregation went up in the 2000s.”- Sean Reardon, Professor

The number of families living in middle income neighborhoods dropped to 44% in 2007, down from 65% in 1970.  The study looked at 2007 U.S. Census Bureau data covering 117 metropolitan areas.

The Stanford study also found what many economists, the IRS, and the Occupy Wall Streeters have been saying; fewer people are getting most of the money: “Given that in 2008 the top 10% of earners controlled approximately 48% of all income in the United States, the increasing isolation of the affluent from the low and moderate income families means that a significant portion of society’s resources are concentrated in a smaller and smaller portion of neighborhoods.”

Analysts say that it’s a good bet that Census Bureau data from 2008 to present would should an even bigger decline in the middle class.