This appears to be the report on which the story is based: http://www.urban.org/research/publication/growing-size-and-incomes-upper-middle-class/view/full_repor

This appears to be the report on which the story is based: http://www.urban.org/research/publication/growing-size-and-incomes-upper-middle-class/view/full_report http://www.urban.org/research/publication/growing-size-and-i... This WSJ article (paywall) has a fuller write-up and links some other related research: http://blogs.wsj.com/economics/2016/06/21/not-just-the-1-the-upper-middle-class-is-larger-and-richer-than-ever/ http://blogs.wsj.com/economics/2016/06/21/not-just-the-1-the... Marginal Revolution has a write up with an interesting graph that is credited to the WSJ but I didn't see there: http://marginalrevolution.com/marginalrevolution/2016/06/the-middle-class-is-shrinking-because-many-people-are-getting-richer.html http://marginalrevolution.com/marginalrevolution/2016/06/the... In case you don't want to click through the definition of upper middle class used is $100,000 - $350,000 for a family of three in today's dollars (adjusted for inflation and family size as appropriate).