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The professional class, also called the upper middle class, consists mostly of highly educated white collar salaried professionals, whose work is largely self-directed. In 2005, these household incomes commonly exceed $100,000 per year.
At the top of the income classes is the upper class. There is no single definition of whom this includes. Many think of the upper class in terms of the 1%. To be in the richest 1% nationally, a household needs to have the annual income of at least $389,436, according to the Economic Policy Institute.