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Why is the gap so wide?
Pew defines middle class as those who earn between 67 and 200 percent of the median income, and for Americans, overall, that was between $39,560 to $118,080 in 2016.
As for lower-income citizens, they take home less than 67 percent of the median, and upper-income families pocket earnings that are more than double the median.
Overall, the national median household income of $59,039 saw a 3.2 percent increase from the previous year, and it's the highest it's ever been.
Want to know the statistics for all 50 states? Take a look at the map of findings below, which shows the minimum household income required to be middle class.