What range of yearly earning figures constitute middle class?

A yearly income between $34,000 and $107,000 is between the 25th and 75th U.S. income percentiles for 2013. However, the term middle class is ambiguous, and there aren't specific guidelines to determine middle class income boundaries.

Median incomes vary significantly based on the city and state, so middle class income boundaries vary based on the area. According to an analysis by the Pew Charitable Trusts' Stateline, households that earn between 67 and 200 percent of the state's median income are middle class.

The number of households that qualify as middle class varies depending on the guidelines used, from less than 30 percent to over 60 percent of all households.