The United States has some of the highest levels of income and wealth inequality in the world. U.S. Federal Reserve data shows that the wealthiest 10% of Americans control $93.8 trillion, more than double the $40.3 trillion in the hands of the remaining 90% of Americans.
The income and wealth divide only appears to be growing wider. A January 2020 report published by the Pew Research Center found that over the last four decades, income growth for the top 5% of families by earnings has far outpaced income growth for families in the lower income strata.
Using data from the U.S. Census Bureau’s 2019 American Community Survey, 24/7 Wall St. identified the metro area with the widest income gap in each state. Metropolitan areas are ranked by their Gini coefficient, a measure of income inequality based on the distribution of income across a population on a 0 to 1 scale — 0 representing perfect equality and 1 representing the highest possible level of inequality. Four states — Delaware, New Hampshire, Rhode Island, and Vermont — have only one metro area. As a result, these areas rank as having the worst income inequality in the state by default only.
Though each metro area on this list has the highest degree of income inequality in its state, Gini scores vary considerably — from as low as 0.416 up to 0.541. Nationwide, the Gini coefficient stands at 0.481.
Causes behind rising inequality in the United States are complex and varied. A report published by the National Bureau of Economic Research ties the rising disparity to a range of economic factors, including globalization, technological advancement, a stagnant minimum wage, and the decline of labor unions.